################### DATA BASE FOR HISTORICAL & INSTRUMENTAL SEISMICITY IN CHILE################## ------------------------------------LIST OF EVENTS------------------------------------ 1513 1543 1570 1575-24/08 1575-16/12 1582 1604 1612 1647 1657 1681 1715 1725 1730 1737 1751 1768 1784 1796 1819 1821 1822 1829 1831 1835 1836 1837 1847 1849 1850-02/04 1850-06/12 1851 1859 1868 1869 1870 1871 1873 1876 1877-23/01 1877-10/05 1880 1609 1914 1912-05 1918-12 1822 1928 1939 1943 1946 1953 1960 1965 1966 1971 1985 1995 1998 2003 2004 2005 2007 2009 2010 ---------------------------------------DETAILS---------------------------------------- ########## ###date### ########## DATE : supposed date TYPE : historical or instrumental RELIABILITY : from A to E EPICENTRE : latitude-longitude DEPTH : depth of the main shock RUPTURE LENGTH : length of the main rupture Ms : magnitude Mw : moment magnitude AFTERSHOCKS : number and strength BARRIERS : geological barriers that could have stopped the event. DAMAGES : observations of the earthquake strength TSUNAMI : tsunami associated or not ########## ###1513### ########## NAME:1513 DATE :1513 TYPE : historical RELIABILITY : poor EPICENTER :17.21°S 72.3°W DEPTH : MECHANISM: Mw: INTENSITY: Ms(I) : > 7.7 M(L): RUPTURE LENGTH: >100km TSUNAMI:probably VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : numerous POSTSEISMIC : BARRIERS : DAMAGES :Landslides; coastline rise ++ SOURCES : Giesecke & Silgado(1981) -- native coastal population SOURCES : Compte et Pardo (1991), SISRA-PERU catalog (1985),Gieske and Silgado(1981) COMMENTS: relats of the habitants mentions change of level of the coast line ########## ###1543### ########## DATE : 1543 SOURCES : Greve (1964) -- SISRA-Peru cat.(1985) TYPE : historical RELIABILITY : E EPICENTRE : -19 to -20°N (source 1) -19°N -70.5°E (source 2) DEPTH : - RUPTURE LENGTH : >100km Ms : >7.7 Mw : - AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : Arica bend DAMAGES : felt toward Peru & Tarapaca province TSUNAMI : no MAIN SOURCE : Comte and Pardo (1991) ########## ###1570### ########## NAME:1570 DATE :febrary the 8th of 1570, 9AM TYPE : historical RELIABILITY : poor EPICENTER :-36.8S (1?) in front of Talcahuano bay (2) DEPTH : - MECHANISM: inverse Mw: 8 INTENSITY: Ms(I) : M(L): - RUPTURE LENGTH: from 35.8S to 37S (3) ?? TSUNAMI: major event VOLCANICS ERUPTIONS:no MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : Arauco Peninsula DAMAGES :comparable to the 1835 damages. no killed. SOURCES : Kelleher 1972 (1) Lomnitz 2004 (2), Beck 1998 (3) COMMENTS: initial tsunami pulse upward, alerts the population. Doubts on the rupture length : prooves for (3) ? ########## ###1575### ########## NAME:1575 DATE :17 march 1575, 10 AM TYPE : historical RELIABILITY : very poor EPICENTER : - DEPTH : - MECHANISM: subduction earthquake Mw: 7 to 7.5 (1) INTENSITY:VI to VIII in Santiago Ms(I) : - M(L):- RUPTURE LENGTH: 140 km ? (2) from 32.8 to 33.9S (3) TSUNAMI:no VOLCANICS ERUPTIONS: no MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : no casualities mentionned SOURCES : Lomnitz (1), Beck and barrientos (2), Comte 86 (3) COMMENTS: ------------------------------------------------- NAME:1575 DATE :16 december 1575, 3 PM TYPE : historical RELIABILITY : ~ EPICENTER : - DEPTH : - MECHANISM: subdcution earthquake Mw: 8 to 8.5 (1) INTENSITY: - Ms(I) : M(L): RUPTURE LENGTH: 440 km (2) TSUNAMI:major tsunami reaching Concepcion to the north. VOLCANICS ERUPTIONS: - MAIN AFTERSHOCKS : damaging and numerous POSTSEISMIC : - BARRIERS : Arauco ? DAMAGES : severe in the whole Indian territories. more than 1300 indians killed by landslides and tsunami effects. SOURCES : Lomnitz (1), Kelleher (2), COMMENTS: tsunami occurs while earth was still shacking. ########## ###1582### ########## NAME:1582 DATE :22 january 1582 TYPE : RELIABILITY : EPICENTER :16.6°S 17.6°W DEPTH : 55 km MECHANISM: Mw: INTENSITY:X Ms(I) : 7.9 (1) M(L):7.5(2) RUPTURE LENGTH: 137 km (1) , 80 km (2) TSUNAMI:not information VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : 300 houses destroyed, plus of 30 victims SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG (1985), Dorbath(1990)(2) COMMENTS:violent earthquake in Arequipa ########## ###1604### ########## NAME:november_1604 DATE :24 november 1604 TYPE : historical RELIABILITY : EPICENTER :17.88°S 70.94°W (3) - 18.50°S 70.35°W (4) DEPTH : 80(3) MECHANISM: Mw: INTENSITY:X Ms(I) : 7.0(3) -8.4 (4) - 8.7 (1) M(L): RUPTURE LENGTH:415 km (1) TSUNAMI:yes VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG (1985)*(3), Dorbath(1990)(2), SISRA-CHILE catalog (1985)*(4) COMMENTS:documented by Montessus de Ballore (1912), Greve (1964), Silgado (1968) and Lomnitz(1971).he macroseismic estimation location for SISRA-CHILE coincides with of the 1868 earthquake. ########## ###1615### ########## NAME:1615 DATE :16 september 1615 TYPE : historical RELIABILITY : EPICENTER :18.25°S 71.00°W(3),18.5°S 70.35°W(4) DEPTH : 40(3) MECHANISM: Mw: INTENSITY:IX Ms(I) : , 7.9 (1),7.5(4) M(L): RUPTURE LENGTH: 137km (1) TSUNAMI:yes (1) VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : affcted Arica and Tacna SOURCES : Compte and Pardo (1), Dorbath(1990)(2), SISRA-PERU CATALOG (1985)(3),SISRA-CHILE (4) COMMENTS:Relocated epicenter because in the Desert of Atacama the population is very low.Relats of one earthquake 11 years after mentions little tsunami. The location is possibly similar to the 1877 earthquake. ########## ###1647### ########## NAME:1647, "Great Santiago Eartquake" DATE :13 may 1647, 10:30 PM TYPE : historical RELIABILITY : poor EPICENTER : 33°S (1) but controversy unresolved (located on the coastal cordillera fault ?) (2), or San Ramon fault (3) DEPTH : - MECHANISM: - Mw: ~8 INTENSITY: Ms(I) : M(L): RUPTURE LENGTH: if subduction earthquake, ~390km (4), unestimated (1), from 31.6 to 35.2S ~400km (6) TSUNAMI: small compared with the earthquake size(5) VOLCANICS ERUPTIONS:none MAIN AFTERSHOCKS : plenty POSTSEISMIC : - BARRIERS : San antonio crossed. DAMAGES : killed in Santiago, rock falls. SOURCES : Kelleher (1), Lomnitz (2), Rauld 2002 (3), Beck and Barrientos (4) Barrientos (5), Comte 86 (6) COMMENTS: celebrated every year in Santiago. no clear evidence for subduction origin. equivalent of the 1906 event (6) ########## ###1657### ########## NAME:1657 DATE :15 march 1657, 8 PM TYPE : historical RELIABILITY : poor EPICENTER : offshore (1), 36.8°S (2) DEPTH : - MECHANISM: inverse Mw: 7.9-8 INTENSITY: - Ms(I) : - M(L):- RUPTURE LENGTH:~300km from 36.3 to 39 ° (3) what extend in the south ?, unestimated (2) TSUNAMI:yes, 10 PM VOLCANICS ERUPTIONS: - MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : Arauco peninsula DAMAGES : homes destroyed in Concepcion. SOURCES : Lomnitz (1), Kelleher (2), Campos et al.(3), COMMENTS: during indian wars. ########## ###1681### ########## NAME:march_1681 DATE :10 march 1681 TYPE : historical RELIABILITY : poor EPICENTER :18.50°S 70.35°W(3) DEPTH : MECHANISM: Mw: INTENSITY:X Ms(I) : 7.3(3) M(L): RUPTURE LENGTH:58 km TSUNAMI:not VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : SOURCES : Compte and Pardo (1), SISRA-CHILE CATALOG (1985)(3) COMMENTS: Violent earthquake in Arica, described by Montessus de Balore(1912), very incompleted information. ########## ###1715### ########## NAME:1715 DATE :23 august 1715 TYPE : historical RELIABILITY : EPICENTER : DEPTH : MECHANISM: Mw: INTENSITY:VII Ms(I) : 7.5(1) M(L):7.5(1) RUPTURE LENGTH:120 km, 75km (3) TSUNAMI: VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : strongs aftershocks during more of ywo months. POSTSEISMIC : BARRIERS : DAMAGES :in Arica , Tacna, Ilo, Cobija, Arequipa and Moquegua SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG, Dorbath et al(1990)(3) COMMENTS: ########## ###1725### ########## NAME:1725 DATE : TYPE : RELIABILITY : EPICENTER :16°S 71.6°W (2) DEPTH : 80 km(2) MECHANISM: Mw: INTENSITY: VII Ms(I) : 7.1 (1) M(L):7.5(3) RUPTURE LENGTH:44km (1),75 km (3) TSUNAMI:not VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : 27 march minor earthquake and little tsunami( Ms 5.7 (1)). POSTSEISMIC : BARRIERS : DAMAGES : in Arequipa and Lima,( Montessus de Ballore) SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), Dorbath(3) COMMENTS: ########## ###1730### ########## NAME:1730, Great Valaparaiso Earthquake DATE :8 july 1730, 4:45 AM TYPE : historical (1) RELIABILITY : good EPICENTER : ? DEPTH : - MECHANISM: subduction earthquake Mw:8.5 to 9 INTENSITY: - Ms(I) : - M(L): - RUPTURE LENGTH: near 600 km from 30 to 35°S (2) or from 30.6 to 36°S (4) southward end at 36°S (5), 550km (7) TSUNAMI:great felt until Concepcion, > to the 1647 tsunami, felt in Japan. (3) VOLCANICS ERUPTIONS: - MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : Arauco Peninsula DAMAGES : La Serena, Coquimbo and Santiago damaged, Valparaiso completly destroyed SOURCES : Montessus de Ballore (1), Kelleher (2), Lomnitz (3), Beck and Barrientos(4), Campos (6), Comte 86 (7) COMMENTS: coastal uplift ########## ###1737### ########## NAME:1737 DATE :24 december 1737 TYPE : historical RELIABILITY : very poor EPICENTER : - DEPTH : - MECHANISM: subduction earthquake Mw: 7.5 INTENSITY: - Ms(I) : - M(L): - RUPTURE LENGTH: 450km from 39.2 to 43°S (2) TSUNAMI: ? VOLCANICS ERUPTIONS: - MAIN AFTERSHOCKS : in 1741 other main shock. POSTSEISMIC : - BARRIERS : Arauco ? DAMAGES : from Valdivia to Chiloe SOURCES : Lomnitz (1), Kelleher (2) COMMENTS: ########## ###1751### ########## NAME:1751 DATE :25 May 1751, after 1 AM. TYPE : historical RELIABILITY : poor EPICENTER : ? DEPTH : - MECHANISM: subduction earthquake - up to 6 distinct earthquakes Mw: 8.5 INTENSITY: VI to VII in Santiago. Ms(I) : M(L): RUPTURE LENGTH: ~300 km, from 33 to 36°S (2), from 34.5 to 37°S ~270km (3-4) TSUNAMI: big tsunami > 1647 and 1730. felt in Japan. VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : the 26 june, and during 7 days after the main shock. POSTSEISMIC : - BARRIERS : San Antonio crossed ? Arauco. DAMAGES : Concepcion totally destroyed, santiago and Valparaiso affected. Severe destructions in Chillan and Talca. 30 persons killed. SOURCES : Lomnitz (1), Kelleher (2), Beck and Barrientos(3), Comte 86 (4) COMMENTS: two major foreshocks the 23 may and 10mn before. Bay Islands uplift. Estimate of Kelleher (2) of the rupture length may be wrong ! ########## ###1768### ########## NAME:1768 DATE :before 1768 TYPE : historical RELIABILITY :poor EPICENTER : DEPTH : MECHANISM: Mw: INTENSITY: Ms(I) : >7.7 M(L): RUPTURE LENGTH:>100km TSUNAMI: VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES :destruction Pica(20.48°S 69.33°W church and village of Matilla 20.53°S 69.33°W SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG COMMENTS:earthquake considerder interplate ########## ###1784### ########## NAME:Great earthquake of Arequipa DATE :13 may 1784 TYPE : historical RELIABILITY : EPICENTER :16.50°S 72°W(2) DEPTH : MECHANISM: Mw: INTENSITY:X Ms(I) : 7.8 (2), 8.5 (1), M(L):8.6(1),8.0(3), 8.4 (4)) RUPTURE LENGTH:390km (1), 300km (4) TSUNAMI:not VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : Arequipa's city ruined and one radius of 100 km SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), Silgado(1985) (3) and Dorbath (4) COMMENTS: ########## ###1796### ########## NAME:1796 DATE :30 March 1796, 6:45 AM. TYPE : historical RELIABILITY : poor EPICENTER : - DEPTH : - MECHANISM: subduction earthquake Mw: 7.5 INTENSITY:- Ms(I) : M(L):- RUPTURE LENGTH: around 200km, from 26.7 to 28.5°S (2) largely unknown. TSUNAMI:? VOLCANICS ERUPTIONS: - MAIN AFTERSHOCKS : sever on 24 august 1796. POSTSEISMIC : - BARRIERS : Talinay ?? DAMAGES : Destroyed Vallenar-Copiapo, Huasco, Coquimbo and damaged La Serena. SOURCES : Lomnitz (1), Beck and Barrientos (2) COMMENTS: foreshocks felt during the period 1774-1796. ########## ###1819### ########## NAME:1819 DATE :3 april 1819, 10 AM TYPE : historical RELIABILITY : poor EPICENTER : - DEPTH : - MECHANISM: subduction earthquake, triple event (3-4 and 11 april) Mw:8.5 INTENSITY: Ms(I) : M(L): RUPTURE LENGTH: from 26.3 to 29.7°S (2) about 470km (3) TSUNAMI:large tsunami observed in a 800km radius rounding Caldera. VOLCANICS ERUPTIONS: - MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : Talinay ? DAMAGES : total destruction of Copiapo. SOURCES : Lomnitz (1), Beck and Barrientos(2), Barrientos (3) COMMENTS: ########## ###1821### ########## NAME: DATE : 1821 TYPE : historical RELIABILITY : EPICENTER :16.107°S 72.967°W (2) DEPTH : 90 km(2) MECHANISM: Mw: INTENSITY:VII Ms(I) : M(L):38km RUPTURE LENGTH: TSUNAMI: VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : in Arequipa, Camana,Caraveli, Chuquibamba, Ocona and valle de Majes SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG COMMENTS: ########## ###1822### ########## NAME:1822 DATE :19 september 1822, 10:15 PM TYPE : historical RELIABILITY :poor EPICENTER : probably in the La Ligua area (1), 27.6°S (2), offshore (4) DEPTH : - MECHANISM: subduction earthquake Mw: 8 to 8.5 INTENSITY: VII in Santiago Ms(I) : M(L): RUPTURE LENGTH: unknown (2), from 32 to 34.2°S around 240km (3), from 31.7 to 33.5°S (2), from X to 34°S (5), from 33.8 or more to 31.8 or 32S ~220km (6) TSUNAMI:small compared with the evetn size, 12 feets VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : subsidence BARRIERS : San Antonio ? DAMAGES : Severe damages in anchors and in Santiago, but not in the Andes. churches destroyed. SOURCES : Lomnitz (1), Beck and Barrientos(2), Kelleher(3), Barrientos (4), Campos (5), Comte 86 (6) COMMENTS: coastal uplift of around 1m at 160km of the probable epicentre. Southern end of the rupture unclearly defined. ########## ###1829### ########## NAME:1829 DATE :26 september 1829, 2:00 PM TYPE : historical RELIABILITY :poor EPICENTER : - DEPTH : - MECHANISM: subduction earthquake aftershock of 1822 event ? (1) Mw: 7 INTENSITY: VI in Santiago Ms(I) :- M(L):- RUPTURE LENGTH: TSUNAMI:- VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : BARRIERS : San Antonio ? DAMAGES : confined in the Valparaiso area SOURCES : Lomnitz (1) COMMENTS: ########## ###1831### ########## NAME:1831 DATE :9 October 1831 TYPE : historical RELIABILITY : EPICENTER :18.50°S 70.35°W (3) 18.4868°S 71.016°W(2) DEPTH : 60(2) MECHANISM: Mw: INTENSITY:VII(2) Ms(I) :7.0 (1) M(L): RUPTURE LENGTH:38 km (1) TSUNAMI: VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : in Arequipa Tacna Arica SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG (2) ,SISRA-CHILE CATALOG (3) COMMENTS: Discution of the dommages in Arequipa Tacna Arica ( Montessus de ballore,Perrey , Greve and Silgado ########## ###1835### ########## NAME:1835 DATE :20 february 1835 TYPE : historical RELIABILITY : good EPICENTER :? in front of Concepcion DEPTH : - MECHANISM: subduction earthquake Mw:8-8.5 (1) INTENSITY: Ms(I) : M(L): RUPTURE LENGTH: ~290km from 34.9 to 37.1 (2) ~300km from 35.5 to 38S(3) TSUNAMI:major tsunami (40 feets) VOLCANICS ERUPTIONS: explosive offshore explosion in Juan fernandez islands. Maybe Orsono volcano ? MAIN AFTERSHOCKS : large foreshock 30mn after the main shock. POSTSEISMIC : BARRIERS : Arauco peninsula ? DAMAGES : severe from Concepcion to Valdivia. Santiago affected. SOURCES : Lomnitz 2004 (1), Kelleher (1972) (2), Campos et al.(3) COMMENTS: did the rupture zone propagated south of the Arauco peninsula ? ########## ###1836### ########## NAME:1836 DATE :3 june 1836 TYPE : historical RELIABILITY : EPICENTER :22.55°S 70.3°W(2) DEPTH : MECHANISM: Mw: INTENSITY: Ms(I) : 7.5(2) 7.1(1) M(L): RUPTURE LENGTH:44km (1) TSUNAMI:small tsunami VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES :village of Cobija SOURCES : Compte and Pardo (1), Lockridge(1985)(2) COMMENTS: not reported in SISRA catalogs. ########## ###1837### ########## NAME:1837 DATE : 7 november 1837, 8 AM. TYPE : historical RELIABILITY :poor EPICENTER : coastal, between Valdivia and Castro near Chiloe, same area than 1960 event. (1) DEPTH : - MECHANISM: subduction earthquake Mw: INTENSITY: - Ms(I) : 8 M(L): - RUPTURE LENGTH: estimated to ~500km (2) from 39.2 to 44S but less large in (3) TSUNAMI: strong in Chiloe (up to 900m inland), felt in Samoa & Hawai. VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : Arauco ? DAMAGES : few SOURCES : Lomnitz (1), Kelleher (2), Barrientos (3) COMMENTS: coastal uplift of 8m in Lemus Island ########## ###1847### ########## NAME:1847 DATE :8 october 1847, 11 AM. TYPE : historical RELIABILITY :poor EPICENTER : La Ligua area (1) 32S 71W DEPTH : - MECHANISM: subduction earthquake Mw: INTENSITY: VI in Santiago, felt in Mendoza-La Serena Ms(I) : 7 M(L): RUPTURE LENGTH: unknown TSUNAMI:- VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : DAMAGES : few SOURCES : Lomnitz (1) COMMENTS: beggining of the 7-7.5 serie of events in the Valparaiso area ########## ###1849### ########## NAME:1849 DATE :17 November 1849 TYPE : historical RELIABILITY :poor EPICENTER : probably in front of Coquimbo bay DEPTH : - MECHANISM: subduction earthquake Mw: INTENSITY: VI in Santiago Ms(I) : 7.5 M(L): RUPTURE LENGTH: ? TSUNAMI:yes, 10mn after the shock in the coquimbo bay.(16 feet above the high-water mark) VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : SOURCES : Lomnitz (1), COMMENTS: ########## ###1850### ########## NAME:1850 DATE :2 April 1850, 6:48 AM. TYPE : historical RELIABILITY :poor EPICENTER : near Casablanca (33S 71W) DEPTH : - MECHANISM: subduction earthquake Mw: 7.5 INTENSITY: VII in Santiago and Valparaiso Ms(I) : M(L): RUPTURE LENGTH: unknown TSUNAMI:- VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : DAMAGES : Severe damages Valparaiso, Quillota, Aconcagua Valley. SOURCES : Lomnitz (1) COMMENTS: serie of 7-7.5 events in the Valparaiso area. ---------------------------------------------------------- NAME:1850 DATE : 6 december 1850, 6:42 AM TYPE : historical RELIABILITY :poor EPICENTER : probably in front of Santiago and Maipo Valley. DEPTH : - MECHANISM: subduction earthquake Mw: 7 to 7.5 INTENSITY: VII in Santiago Ms(I) : M(L): RUPTURE LENGTH: ? TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : rockslides in the Maipo Valley SOURCES : Lomnitz (1) COMMENTS: serie of 7 to 7.5 events in the Valparaiso-Santiago area. ########## ###1851### ########## NAME:1851 DATE :26 May 1851, 1:14 PM TYPE : historical RELIABILITY :poor EPICENTER : Huasco Valley (north of Coquimbo bay) DEPTH : - MECHANISM: subduction earthquake Mw: INTENSITY: - Ms(I) : 7.5 M(L): RUPTURE LENGTH: ~70km long btw 33 and 34 S (2), (3), less than 50km south of 33S (4-5) TSUNAMI: 10 feets above the hight water mark in Huasco. VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : in the Copiapo area SOURCES : Lomnitz (1), Kelleher (2), Campos (3), Back and Barrientos (4), Comte 86 (5) COMMENTS: ########## ###1859### ########## NAME:1859 DATE :5 October 1859, 8AM TYPE : historical RELIABILITY :poor EPICENTER : Copiapo DEPTH : - MECHANISM: subduction earthquake Mw: INTENSITY: - Ms(I) : 7.5 M(L): RUPTURE LENGTH: ? TSUNAMI: Severe damaging in Caldera (27S 70.8W). VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : Severe in Copiapo and Caldera, houses destroyed and trailway tracks damaged. SOURCES : Lomnitz (1) COMMENTS: ########## ###1868### ########## NAME:1868 DATE :13 August 1868 TYPE : historical RELIABILITY : good EPICENTER : 17.7°S 71.6°W 18.5°S 70.35°W(2) DEPTH :shalow MECHANISM: Mw: INTENSITY:IX(2), X (3) Ms(I) :8.8 (1) 8.5 (2) 8.5 (4) 9.1(5) M(L):8.8(1) RUPTURE LENGTH:500km TSUNAMI:yes VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : SOURCES : Compte and Pardo (1), SISRA-CHILE(2) , SISRA-PERU CATALOG(3), Lomnitz(1971)(4), Kausel(1986)(5) COMMENTS: SISRA Peru indentifie two earthquakes the same day with epicenter in 16.4°S 71.56°W and other 18.29°S 70.59°W ########## ###1869### ########## NAME:1869 DATE :24 august 1869 TYPE : RELIABILITY : EPICENTER : 19.17°S 70.21W(4)(1) 17.50°S 72.00°W (2) 18.6 70.0(3) DEPTH : MECHANISM: Mw: INTENSITY: Ms(I) : 7.4 (4) (1) 7.8(3) M(L):67km RUPTURE LENGTH: TSUNAMI:small affected Arica, Iquique Pisagua VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : South of Peru and north of Chili, principal dammage in Iquique and Pica SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), Lockridge(1985)(3), SISRA CHILE(4) COMMENTS: great afthershock of the 1868 earthquake felt from Arequipa to coquimbo, relats of Montessus de Ballore, it can cosidered as a foreshock of the 1877 earthquake. ########## ###1870### ########## NAME:1870 DATE :22 abril 1870 TYPE : historical RELIABILITY : EPICENTER : 22.74°S 68.93W(4)(1) DEPTH : MECHANISM: Mw: INTENSITY:X Ms(I) : 7.5 (1) M(L): RUPTURE LENGTH: TSUNAMI:not VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : South of Peru and north of Chili, principal dammage in Iquique and Pica SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), Lockridge(1985)(3), SISRA CHILE(4) COMMENTS: it was felt from Arica to Caldera, epicenter in calama city(intraplate) ########## ###1871### ########## NAME:1871 DATE :5 octobre 1871 TYPE : historical RELIABILITY : EPICENTER : 20.1°S 71.3°W(3) 20.2°S 70.17W(4) DEPTH : MECHANISM: Mw: INTENSITY:X Ms(I) : 7.5 (3) 7.5(3) M(L): RUPTURE LENGTH:67 km TSUNAMI:yes VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : in Iquique SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), Lockridge(1985)(3), SISRA CHILE(4) COMMENTS: it was felt from Lima to Copiapo, much dammage in Iquique ########## ###1873### ########## NAME:1873 DATE : ? TYPE : historical RELIABILITY :poor EPICENTER : around 32.5S ? (1) DEPTH : - MECHANISM: subduction earthquake Mw: ~7.8 (3) INTENSITY: - Ms(I) : ~7 ? M(L): RUPTURE LENGTH: ~90km from 32S to 32.9S (1), less in (2), ~100km in (3) from 32 to 33S TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : - SOURCES : Beck and Barrientos (1), Campos (2), Comte (3) COMMENTS: unregistered in the webpage of servicio geologico and in the Lomnitz and Kelleher revue ...? Mw <7 ? Registered in(3) as equivalent to the 1971 event. ########## ###1876### ########## NAME:1876 DATE :26 octobre 1876 TYPE : historical RELIABILITY : EPICENTER : 22.07°S 69.63W(4) DEPTH : MECHANISM: Mw: INTENSITY:VII Ms(I) : 7.2 (1) M(L): RUPTURE LENGTH: TSUNAMI:not VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : this eatrhquake destroyed the TOco salpeter offices -felt from Arequipa to Cobija and caracoles SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), Lockridge(1985)(3), SISRA CHILE(4) COMMENTS: from the relats of Montessus de Ballore(1912) and Greve(1964). Intraplate event. ########## ###1877### ########## NAME:1877 DATE :10 may 1877 TYPE : historical RELIABILITY : good EPICENTER : 21.00°S 70.25°W (1) 19.6°S 70.23°W (2)(4) 21.33°S 71.25°W (3) DEPTH : MECHANISM: Mw: INTENSITY:XI(4) Ms(I) :8.8 (1) M(L):8.7(1), 8.9(5),8 - 8.5(6), 8.7-8.8(7) RUPTURE LENGTH:420 km TSUNAMI:big tsunami VOLCANICS ERUPTIONS: MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), Mline(1880)(3), SISRA CHILE(4), Kausel (1986), Lomnitz(1971)(6),Ramirez (1988)(7) COMMENTS: Big earthquake and grath tsunami, relats considered 1868 and 1877 tsunami are the greatest observed since the arrival of spanish. ########## ###1878### ########## NAME:1878 DATE :23 january 1878 TYPE : historical RELIABILITY : EPICENTER : 19.92°S 69.53°W (1) 19.6°S 70.23°W (2)(4) 21.33°S 71.25°W (3) DEPTH : MECHANISM: Mw: INTENSITY: Ms(I) :7.0 M(L): RUPTURE LENGTH: TSUNAMI: VOLCANICS ERUPTIONS: Isulga( not sure linked) MAIN AFTERSHOCKS : POSTSEISMIC : BARRIERS : DAMAGES : SOURCES : Compte and Pardo (1), SISRA-PERU CATALOG(2), SISRA CHILE(4) COMMENTS: ########## ###1880### ########## NAME:1880 DATE : 15 August 1880, 8:48 AM TYPE : historical RELIABILITY :poor EPICENTER : near Illapel, Los Vilos area (1) DEPTH : - MECHANISM: subduction earthquake Mw: INTENSITY: V in Rancagua Ms(I) : 7.5 (1) 7.7 (2) M(L): RUPTURE LENGTH: ~ 230km from 30.9 to 32S (3) from 30.5 to 32S (4), from 30.6 to 31.9S (5) TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : in Valaparaiso, La Serena and Santiago and on the railway. Light in Concepcion. Deep submarine cable break off in Limari SOURCES : Lomnitz (1), Servicio Geologico (2), Kelleher (3), Beck and Barrientos (4), Comte (5) COMMENTS: landslides in Illapel. ########## ###1906### ########## NAME: Valparaiso disaster DATE : 16-17? august 1906, 8:40 PM TYPE : instrumental RELIABILITY : good EPICENTER : -33S -72W (2) DEPTH : 25km (2) MECHANISM: a foreshock preceeding the mainshock => subduction earthquake Mw: 8.2 (2) INTENSITY: IX from Papudo to Rapel River / VIII in Santiago. Felt in Argentina, Tacna and Chiloe. Ms(I) : 8.6 (1) 7.9 (2) M(L): RUPTURE LENGTH: < 200 km (3); from 31.8 to 35.2 ~370km (4); 32.3 to 34.5 ~230km (5); from 35S to >32S >300km (6) TSUNAMI: up to 4 feet above the hight-level mark. no damage linked. small related to Mw. VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : disapearring of the coastal uplift of 80cm that went from 34.8 to 31.9 (300km) BARRIERS : btw Talinay and Arauco DAMAGES : Destruction and fire of Valaparaiso, 3.800 dead SOURCES : Lomnitz (1), Servicio Geologico Chileno (2), Barrientos (3), Beck and Barrientos (4), Kelleher (5), Campos (6) COMMENTS: strong uncertainity on the rupture length. Sequence of events (with 1647-1730-1822 and 1935) with same characteristics. ########## ###1914### ########## NAME: 1914 DATE : 29 Janvary 1914, 11:30 PM (1) TYPE : instrumental RELIABILITY : poor EPICENTER : -35S -73W (1) DEPTH : - MECHANISM: subduction earthquake Mw: - INTENSITY: - Ms(I) : 8.2 (1) M(L): RUPTURE LENGTH: ~110km (2) TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : san Antonio ? DAMAGES : - SOURCES : Servicio Geologico Chileno (1), Campos (2) COMMENTS: ########## ###1918### ########## NAME:1918 DATE : 18 december 1918, 7:44 AM (1) 8 December (2), 5 December (4) TYPE : historical RELIABILITY : poor EPICENTER : south of Copiapo (1, 2), 26S 71W (2) DEPTH : 60 km (4) MECHANISM: subduction earthquake Mw: INTENSITY: - Ms(I) : 7-7.5 (1) 7.8 (2) M(L): RUPTURE LENGTH: ? from 25.8 to 26.5S ~80km (3) TSUNAMI: in Caldera Bay up to 5m above the mean tide level. VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : Severe in the Copiapo area, nothing in Vallenar or Caldera. SOURCES : Lomnitz (1), Kelleher (2), Beck and Barrientos (3), Servicio Geologico Chileno (4) COMMENTS: Foreshocks at 12:30 and 7:43 AM. Uncertainty on the date. ------------------------------------------------------------------------ NAME: 1918 may DATE : 20 May 1918 12:57 PM (1) TYPE : instrumental RELIABILITY : good EPICENTER : -28.5S -71.5W (1) DEPTH : - MECHANISM: subduction earthquake Mw: - INTENSITY: - Ms(I) : 7.9 (1) M(L): RUPTURE LENGTH: - TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : - SOURCES : Servicio Geologico Chileno (1) COMMENTS: undocumented in other articles ! ########## ###1922### ########## NAME: 1922 DATE : 10 november 1922 (1) (2), 11 november (3), 11:33 PM (1) TYPE : instrumental RELIABILITY : good EPICENTER : off Huasco (1), 28.5S 70W (2) (3). DEPTH : 25 km MECHANISM: subduction earthquake, 3 main shocks in a minute, 3 epicenters. Mw: 8.4 (1) INTENSITY: Ms(I) : 8.39 (2) M(L): RUPTURE LENGTH: from 26.1 to 29.6 ~390km (3) from 26.5 to 30.2S (5) Afterskock area extends from 26.5 to 30.8 (3) TSUNAMI: Tsunami source north of Coquimbo (3) most destructive in Coquimbo area. Max wave height of 9m. Felt in japan with damages. VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : continous aftershock serie with a large aft on 26th of november (1). Aftershcok zone of 470 km NS direction. POSTSEISMIC : - BARRIERS : san Antonio ? DAMAGES : Destruction of Copiapo, high vertical accelerations. SOURCES : Lomnitz (1), Servicio Geologico Chileno (2), Kelleher (3), Barrientos (4), Beck and Barrientos (5) COMMENTS: Uplift observed in Chanaral (1). Uncertainity on the rupture zone southern extend : rupture in the La Serena bay ? Smaller event in the 7th of november (2) ########## ###1928### ########## NAME: Talca earthquake DATE : 1st of December 1928, 12:06AM (1-2-3) TYPE : instrumental RELIABILITY : good EPICENTER : -35N -72W (1) north of the rupture zone (3) DEPTH : shallow MECHANISM: subduction earthquake, southward propagation Mw: 8.4 (2) 8.3 (3) 7.9 (5) 8.2 (7) INTENSITY: - Ms(I) : M(L): RUPTURE LENGTH: from 35 to 35.8 (3-4) and ~90km (5), 34.5 to 36S (6) TSUNAMI: local tsunami of 1.5m VOLCANICS ERUPTIONS:1.5m tsunami in Constitucion (2), none following (sources in 5 and 3) MAIN AFTERSHOCKS : Aftershock zone from 35.8 to 36.6 (3) south of the main shock rupture along ~150km (5) POSTSEISMIC : - BARRIERS : Arauco ? DAMAGES : from Valparaiso to Concepcion (2), Talca-Constitucion destroyed, 220 dead. SOURCES : Servicio Geologico Chileno (1), Lomnitz (2), Kelleher (3), Beck and Barrientos (4), Barrientos (5), Campos (6), Comte (7) COMMENTS: Coastal uplift in Putu the tidal line receded more than 200m. ########## ###1939### ########## NAME: 1939 DATE : 24 Janvary 1939, 11:32 PM (1) or 25 (2) TYPE : instrumental RELIABILITY : good EPICENTER : -36.2 -72.2 near Chillan (2) on the inner Coast range fault (1), from 35.5 to 37.3 (5) DEPTH : 60 km (1), 80-100 km (4) MECHANISM: no fault associated clearly, but may go down to the moho. (1) Intraplate normal fault event (3-4) Mw: - INTENSITY: - Ms(I) : 8.3 (1) 8.0(6) M(L): RUPTURE LENGTH: ~110km (2) TSUNAMI: no VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : a lot. POSTSEISMIC : - BARRIERS :- DAMAGES : worst chilean earthquake with 28000 dead. Severe damages in Concepcion, Linares, Los Angeles, Chillan destroyed. SOURCES : Lomnitz (1), Servicio geologico chileno (2), Campos (3), Beck and Barrientos (4), Kelleher (5), Comte 86(6) COMMENTS: gravity anomaly of 50mGals across the fault, coastal batholith uplifted of 5 feet. ########## ###1943### ########## NAME: Illapel earthquake DATE : 6 april 1943, 12:07 PM (1-2-4) TYPE : instrumental RELIABILITY : good EPICENTER : -30.75 -72W (2), off the Limari river (1) DEPTH : 55 km (2) 10-30 km (4) MECHANISM: subduction earthquake Mw: 8.2 (2) INTENSITY: VI in Chillan Ms(I) : 8.3 (1-2) 8.1 (5) M(L): RUPTURE LENGTH: from 30.2 to 32.2S ~230km (3-4) from 30.2 to 31.9 or 31.7S (5) TSUNAMI: minor local tsunami in Los Vilos, far field tsunami in Japan (10-30cm) VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : many aftershocks from 30.42 to 31.78S with teleseismic data (4) or from 29.7 to 33S from SP times. (4) ?? Aftershock zone of 360 km (3) POSTSEISMIC : - BARRIERS : Talinay ? DAMAGES : in Combarbala, Ovalle and Santiago. concentrated btw the 1906-1922 rupture zones. SOURCES : Lomnitz (1), Servicio Geologico Chileno (2), Beck and Barrientos (3), Kelleher (4), Comte 86(5) COMMENTS: pb-- does the event ruptured the La Serena Bay ? Uncertainty on the southernmost rupture end. ########## ###1946### ########## NAME: 1946 DATE : 2 August 1946 (1-2) 03:19 TYPE : instrumental RELIABILITY : poor EPICENTER : -26.5 -70.5 (1) DEPTH : 50 km (1) MECHANISM: subduction earthquake Mw: - INTENSITY: - Ms(I) : 7.9 (1-2) M(L): RUPTURE LENGTH: from 26.5 to 27.5S (sources in 2 unpublished) TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : none POSTSEISMIC : - BARRIERS : - DAMAGES : - SOURCES : Servicio Geologico Chileno (1), Kelleher (2) COMMENTS: ########## ###1950### ########## NAME: 1950 DATE : 9 december 1950 (1-2) 21:38 TYPE : instrumental RELIABILITY : ?? EPICENTER : -23.5 -67.5 (1-2) DEPTH : 100 km (1-2) MECHANISM: intraplate earthquake - slab pull (2) Mw: - INTENSITY: - Ms(I) : 8 (3) - 8.3 (1) mB : 7.7 (2) M(L): RUPTURE LENGTH: from 22.95S - 24.4S (4) TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : none POSTSEISMIC : - BARRIERS : - DAMAGES : - SOURCES : Servicio Geologico Chileno (1), Engdahl & Villasenor (2), Kausel & Campos 1992 (3), Delouis et al 1997 (4) COMMENTS: ########## ###1953### ########## NAME: 1953, 2nd Chillan DATE : 6 May 1953, 1:18 PM (2) TYPE : instrumental RELIABILITY : poor EPICENTER : -36.5 -72.6W (1) DEPTH : 60 km MECHANISM: subduction earthquake (3)?? or intraplate (2) ? Mw: - INTENSITY: - Ms(I) : 7.5 (1) M(L): RUPTURE LENGTH: ? TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : - DAMAGES : damages in chillan and Concepcion. SOURCES : Servicio Geologico Chileno (1), Lomnitz (2), Kelleher (3) COMMENTS: ########## ###1960### ########## NAME: Valdivia giant event DATE : 22 May 1960, 3:11 PM (2) TYPE : instrumental RELIABILITY : good EPICENTER : -39.5 -74.5W (1 and USGS) DEPTH : - MECHANISM: subduction earthquake Mw: 9.5 (1) INTENSITY: >VIII from Concepcion to Puerto Montt Ms(I) : 8.3-8.5 (1-2) M(L): RUPTURE LENGTH: rupture zone with foreshocks from 37.5 to 46S (3), length ~1000km (2) TSUNAMI: severe tsunami felt in Japan. VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : many foreshocks with southward migration and aftershocks . After 1963, aftershicks located in the Arauco peninsula region (5) POSTSEISMIC : strong and still active. BARRIERS : Arauco DAMAGES : 3000 dead from Concepcion to Chiloe. 21 may 2:56PM foreshock caused main part of the damage in Concepcion. SOURCES : Servicio Geologico Chileno (1), Lomnitz (2), Kelleher (3), Barrientos (4), Bohm (5) COMMENTS: Uplift and subsidence on 1000km coastal length (4) ########## ###1965### ########## NAME: 1965 DATE : 28 march 1965 12:33 (1) TYPE : instrumental RELIABILITY : good EPICENTER : -32.42 -71.1W (1) DEPTH : 68km (1) MECHANISM: INTRAPLATE compression earthquake Mw: - INTENSITY: X in La Ligua, VIII in Illapel, Santiago and Los Vilos, VII in Valparaiso. Ms(I) : 7.4 (1) 7.5 (2) M(L): RUPTURE LENGTH: ? TSUNAMI: no VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : DAMAGES : SOURCES : Servicio Geologico Chileno (1),Barrientos (2) COMMENTS: ########## ###1966### ########## NAME: 1966 Taltal DATE : 28 December 1966 04:18 AM (1) TYPE : instrumental RELIABILITY : good EPICENTER : -25.51 -70.74 (1) DEPTH : 23km (1) MECHANISM: subduction earthquake Mw: - INTENSITY: Ms(I) : 7.8 (1) M(L): RUPTURE LENGTH: from 25.7 to 25S (2) TSUNAMI: - VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : DAMAGES : SOURCES : Servicio Geologico Chileno (1), Kelleher (2) COMMENTS: not a major event ! ########## ###1971### ########## NAME: 1971 DATE : 8 july 1971 11:03 PM (1) TYPE : instrumental RELIABILITY : good EPICENTER : -32.51 -71.21W (1-NOAA) DEPTH : 40 km (1) <60km (4) MECHANISM: subduction earthquake Mw: 7.8 (5) INTENSITY: IX in Papudo-La Ligua, VIII in Petorca-Casablanca-Salamanco, VI in Santiago-Ovalle Ms(I) : 7.5 (1), 7.9 (5) M(L): RUPTURE LENGTH: from 32 to 33S ~100 km (2-3-5) TSUNAMI: yes Mb~6.6 VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : San Antonio ? DAMAGES : severes (road/bridges/train) strong in la Ligua area. SOURCES : Servicio Geologico Chileno (1), Beck and Barrientos (2), Campos (3), Eisenberg (4), Comte 86 (5) COMMENTS: aftershock area low overlaps with the one of 1985 suggesting that different parts of the slab ruptured. ########## ###1975### ########## NAME: 1975 DATE : 10 May 1975 (1) TYPE : instrumental RELIABILITY : good EPICENTER : DEPTH : MECHANISM: subduction earthquake Mw: 7.8 (1) INTENSITY: Ms(I) : M(L): RUPTURE LENGTH: TSUNAMI: VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : DAMAGES : SOURCES : Bohm (1) COMMENTS: ########## ###1983### ########## NAME: 1983 DATE : 4 October 1983 TYPE : instrumental RELIABILITY : EPICENTER : northern part of the 1922 rupture zone DEPTH :38 km MECHANISM: subduction earthquake Mw: 7.8 INTENSITY: Ms(I) : 7.5 M(L): RUPTURE LENGTH: TSUNAMI: minor : maximum intensity VII VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : - POSTSEISMIC : - BARRIERS : DAMAGES : 5 dead, damage in Copiapo SOURCES : Beck et al, (Dziewonski 1983) COMMENTS: ########## ###1985### ########## NAME: 1985 DATE : 3 March 1985 07:46PM (1) TYPE : instrumental RELIABILITY : good EPICENTER : -33.24 -71.85W (1-2) DEPTH : 33 km (1) MECHANISM: subduction earthquake, propagating southward Mw: 8 (1-2) INTENSITY: Ms(I) : 7.8 (1-2) M(L): RUPTURE LENGTH: from 32.6 to 34.4S (2-3) TSUNAMI: yes VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : defining a 170*110km² POSTSEISMIC : - BARRIERS : DAMAGES : serious damages from Quintero to Matanza and Santiago SOURCES : Servicio Geologico Chileno (1), Comte 86 (2), Beck and Barrientos (3) COMMENTS: great foreshock activity 11 days before. Permanent uplift of the shorelines of 11 and 28cm in Valaparaiso and San Antonio. ########## ###1987### ########## NAME: 1987 DATE : 5 March 1987 09:17AM (1) TYPE : instrumental RELIABILITY : ?? EPICENTER : -24.440 -70.570 (2) / -70.161 -24.388 (1) DEPTH : 62 km (1) / 46 km (2) MECHANISM: subduction earthquake Mw: 7.6 (2) - 7.3 (1) INTENSITY: Ms(I) : M(L): RUPTURE LENGTH: from 24 to 24.4-S (4) TSUNAMI: ?? VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : Mw, 05/03/1987, -24.44 / -70.57 (2) POSTSEISMIC : - BARRIERS : DAMAGES : SOURCES : Servicio Geologico Chileno (1), Endgahl & Villasenor 2002 (2), USGS (3), Delouis et al 1997 (4) COMMENTS: very few mention of this event on papers related to 1995 Antofagasta earthquake. ########## ###1995### ########## NAME: Antofagasta event DATE : 30 july 1995 01:11 AM (1) TYPE : instrumental RELIABILITY : good EPICENTER : -23.36 -70.31 (1) DEPTH : 47km (1) MECHANISM: subduction earthquake Mw: 8 (1) RUPTURE LENGTH: from -23.3 to -25S. ~180-200km (2) TSUNAMI: yes VOLCANICS ERUPTIONS:- MAIN AFTERSHOCKS : 4 Mw>6 earthquakes (30/07/95 Mw6.1; 02/08/95 Mw6.0; 03/08/95 Mw6.3; 1996 Mw6.7) (3) POSTSEISMIC : aseismic slip during 5 years, episodic (=pulse) modulated by the amount of sediment subducted, which triggered differents events (2) (3) BARRIERS : Mejillones (aftershock in the 20hr confined in the area south of peninsula) (3) DAMAGES : SOURCES : Servicio Geologico Chileno (1),D.Carlo (2),Prichard and Simons(2006) (3) COMMENTS: ########## ###1998### ########## NAME: Northern Chile event DATE : 30 january 1998 12:16:08 TYPE : instrumental RELIABILITY : EPICENTRE : 23.91S 69.83W DEPTH : 48 km MECHANISM: subduction earthquake, aftershock of Antofagasta 1995 triggered by aseismic transient slip pulse Mw: 7.1 (2) RUPTURE LENGTH : AFTERSHOCKS : BARRIERS : DAMAGES : 1 dead TSUNAMI : POSTSEISMIC : - SOURCES : USGS, Prichard and Simons(2006) (2) COMMENTS: ########## ###2003### ########## NAME: Coquimbo event DATE : 20 june 2003 13:30 TYPE : instrumental RELIABILITY : EPICENTRE : 30.55S 71.37W DEPTH : 33 km MECHANISM: subduction earthquake, the shock occurred as a sudden slippage on the thrust-fault boundary between the plates. Mw: 6.8 RUPTURE LENGTH : AFTERSHOCKS : BARRIERS : DAMAGES : downed powerlines, cracked walls, and partially collapsed facades.No reports of deaths or major damage; TSUNAMI : - POSTSEISMIC : - SOURCES : USGS COMMENTS: ########## ###2005### ########## NAME: Tarapaca event DATE : 13 june 2005 10:44 PM TYPE : instrumental RELIABILITY : good EPICENTRE : 19.934°S, 69.028°W DEPTH : 117.2 km MECHANISM: Mw: 7.8 RUPTURE LENGTH : ~60 km (2) AFTERSHOCKS : located subhorizontally (2) BARRIERS : DAMAGES : Five people killed by collapsed buildings and 6 people killed strucked in their vehicle, power and telephone services interrupted, roads damaged and landslides occurred in the Iquique area (1) TSUNAMI : yes, West coast & Alaska + Pacific (1) POSTSEISMIC : - SOURCES : USGS (1), Kuge et al.,2010 (2) COMMENTS: ########## ###2007### ########## NAME: Antofagasta event DATE : 14 november 2007 3:40 PM TYPE : instrumental RELIABILITY : EPICENTRE : 22.204°S, 69.869°W DEPTH : 40 km MECHANISM: subduction earthquake, interface of 2 plates (1) Mw: 7.7 RUPTURE LENGTH : 130 × 75 km swath that roughly parallels the coastline. (2) AFTERSHOCKS : early aftershocks (the two weeks), occurred near the Southern end of the rupture zone, (North of the Mejillones Peninsula) (1); two large aftershocks (2007-11-15 15:03 Mw 6.3 and 2007-11-15 15:05 Mw 6.8) (2) BARRIERS : Mejillones DAMAGES : 2 dead TSUNAMI : in cm, 25.5 at Antofagasta, 19.5 at Arica, 9.5 at Caldera and 19.3 at Iquique. (1) POSTSEISMIC : SOURCES : USGS (1), B. Schurr et al. (2012) (2) COMMENTS: ########## ###2010### ########## NAME: Maule event DATE : 27 february 2010 TYPE : instrumental RELIABILITY : very good EPICENTRE : 35.909°S, 72.733°W DEPTH : 40 km (1) MECHANISM: subduction earthquake Mw: 8.8 RUPTURE LENGTH :500 km AFTERSHOCKS : ~ 30 000 BARRIERS : Arauco (south) et San Antonio (North) DAMAGES : 523 dead, 24 missing TSUNAMI : in cm, 71 at Pago Pago, American Samoa; 22 at Winter Harbour, Canada; 261 at Valparaiso, 181 at Talcahuano, 164 at Coquimbo, 144 at Corral, 118 at Arica, 90 at Caldera, 79 at San Felix, 68 at Iquique, 47 at Antofagasta and 40 at San Pedro, Chile; 33 at Rarotonga, Cook Islands; 105 at Santa Cruz and 41 at Baltra, Ecuador; 32 at Rikitea, French Polynesia; 95 at Hanasaki, 40 at Ofunato and 30 at Naha, Japan; 21 on Johnston Island; 15 on Saipan, Northern Mariana Islands; 32 on Midway Island; 65.5 at Acapulco and 35.9 at Cabo San Lucas, Mexico; 117 at Gisborne, 101 on Chatham Island, 98 at Owenga and 50 on Raoul Island, New Zealand; 37 at Manus, Papua New Guinea; 69 at Callao, Peru; 16 at Currimao, Philippines; 42 at Apia, Samoa; 63 at King Cove, 42 on Atka, 39 at Seward, 39 on Shemya, 36 at Kodiak, 36 at Yakutat and 23 at Craig, Alaska, USA; 91 at Santa Barbara, 64 at Crescent City, 60 at La Jolla and 46 at Point Reyes, California; 86 at Kahului, 51 at Kawaihae, 40 at Nawiliwili and 26 at Honolulu, Hawaii; 32 at Port Orford, Oregon; 23 at Neah Bay, Washington. POSTSEISMIC : rapid afterslip + visco elastic relaxation (more than 2 years after) SOURCES : Vigny et al., 2011 (1), delouis et al., 2010, lorito et al., 2011, Tong et al., 2010, moreno et al.,2012, Lay et al., 2010. PhD M. Métois, 2012 (2) Web : G. Hayes, Preliminary SZGC results, near coast of central Chile (2010) : http://earthquake.usgs.gov/earthquakes/eqinthenews/2010/us2010tfan/finite_fault.php A. Sladen, S. Owen, Preliminary model combining teleseismic and GPS data 02/27/2010 (Mw 8.8), Chile, (2010) : www.tectonics.caltech.edu/slip_history/2010_chile/prelim_gps.html G. Shao, X. Li, Q. Liu, X. Zhao, T. Yano, C. Ji}, UCSB, Preliminary slip model of the Feb 27, 2010 Mw 8.9 Maule, Chile Earthquake (2010) : www.geol.ucsb.edu/faculty/ji/big_earthquakes/2010/02/27/chile_2_27.html COMMENTS: comparaison des modèles de glissement : auxiliary material Vigny et al., 2011