1985 Rapel Lake earthquake

File:1985 Lago Rapel earthquake.jpg

{{see also|Peru–Chile Trench}}

The 9 April 1985 earthquake occurred in the same fault area as the 2010 Pichilemu earthquakes, and is considered by University of Chile Seismological Service a thrust fault-type interplate earthquake.{{Cite web|url=http://ssn.dgf.uchile.cl/informes/congreso/A01-14.pdf |title=Estudio comparativo de los terremotos de subducción chilenos con los terremotos de subducción del norte, centro y sur de América |publisher=University of Chile Seismological Service |accessdate=12 September 2010 |language=Spanish |date=16–19 November 2005 |location=Concepción, Chile |archiveurl=https://web.archive.org/web/20130227224735/http://ssn.dgf.uchile.cl/informes/congreso/A01-14.pdf |archivedate=27 February 2013 |url-status=dead }}

The earthquake, measured in the Modified Mercalli intensity, reached magnitude VI in Curacaví, La Calera, Los Andes, Peñaflor, San Antonio, Valparaíso, and Viña del Mar; and magnitude V–VI in Concón, Constitución, Curicó, La Ligua, Melipilla, Papudo, Pichilemu, Puchuncaví, Quilpué, and Villa Alemana. The earthquake was felt throughout much of central Chile from La Serena to Osorno. It was also felt in Mendoza, San Juan, San Luis, Córdoba, Tucumán, and Santa Fe provinces in Argentina. According to national radio networks, the tremors "were felt along a 1,000-mile stretch of Chile from Copiapó in the north to Valdivia in the south and across the Andes mountains in Argentina".

Although it has been considered by the news media as an aftershock of the 3 March 1985 earthquake, according to Rosa Urrutia de Hazbún and Carlos Lanza Lazcano's book Catástrofes en Chile 1541–1992, this earthquake was a different and separate event.{{cite book|last1=Urrutia de Hazbún|first1=Rosa|last2=Lanza Lazcano|first2=Carlos|title=Catástrofes en Chile, 1541–1992|url=https://books.google.com/books?id=k64MAAAAYAAJ|year=1993|publisher=Editorial La Noria|location=Santiago de Chile|language=Spanish| accessdate= 13 September 2010 }}

Mario Pardo, the director of the Chilean Seismological Service, told international press in April 1985 that it was "apparently an aftershock from the 3 March earthquake that killed 177 in central Chile" and that "the quake was centered in the ocean off the coast near Pichilemu, a city 100 miles southwest of Santiago".{{cite news|work=The State|location=Columbia, South Carolina|page=2|date=9 April 1985|title=Powerful quake shakes up Chile|quote=Pardo said the quake was centered in the ocean off the coast near Pichilemu, a city 100 miles southwest of Santiago.}}

According to national radio networks, the tremors "were felt along a 1,000-mile stretch of Chile from Copiapó in the north to Valdivia in the south and across the Andes Mountaines in Argentina".

Two people died of heart attacks after the earthquake; one in Santiago and another in Chillán. The earthquake lasted approximately three minutes according to The New York Times.{{Cite news|url=https://www.nytimes.com/1985/04/09/world/strong-quake-jolts-chile.html |title=Strong quake jolts Chile |archiveurl=https://web.archive.org/web/20130227224428/http://www.nytimes.com/1985/04/09/world/strong-quake-jolts-chile.html |archivedate=27 February 2013 |url-status=live|agency=Associated Press |date=8 April 1985 |accessdate=8 September 2010 |newspaper=The New York Times }}

It created damage in addition to that already caused by 3 March earthquake in the Santiago-Valparaíso area.

Hundreds of people panicked into the streets, while radio stations reported some brief power blackouts. In Valparaíso, the roof of a house collapsed, while other houses fell down in Curacaví. No injuries were reported.

{{main|1985 Algarrobo earthquake}}

A magnitude 8.0 earthquake was registered on 3 March 1985 offshore Valparaíso, Valparaíso Region. It reached a maximum intensity of IX on the Mercalli intensity scale. 177 people were killed, 2,575 injured, 142,489 houses were damaged and about a million people were left homeless.{{Cite web|url= https://www.angelfire.com/nt/terremotosdeChile2/|title=Terremoto de 1985|publisher=Angelfire|language=Spanish|access-date=12 September 2010| archive-url= https://web.archive.org/web/20100804071652/http://www.angelfire.com/nt/terremotosdeChile2/| archive-date= 4 August 2010 | url-status=live}} There was a long interruption on basic services, and the damage provoked by that earthquake was estimated to be more than 1,046 million US dollars.{{cite news|url=http://www.emol.com/especiales/terremotos/chile.htm|title=Grandes Terremotos en Chile|work=El Mercurio|accessdate=12 September 2010|location=Santiago de Chile|archiveurl=https://web.archive.org/web/20120207175813/http://www.emol.com/especiales/terremotos/chile.htm|archivedate=7 February 2012|url-status=live}}

• List of earthquakes in Chile

{{reflist|refs=

{{Cite web|url=https://earthquake.usgs.gov/earthquakes/world/events/1985_03_03.php |title=Historic Earthquakes |publisher=United States Geological Survey |accessdate=8 September 2010 |archiveurl=https://web.archive.org/web/20121104230038/http://earthquake.usgs.gov/earthquakes/world/events/1985_03_03.php |archivedate=4 November 2012 |url-status=dead }}

{{Cite web|url= http://www.sismologia.cl/home/terrem.html|title=SISMOS IMPORTANTES Y/O DESTRUCTIVOS (1570 – Mayo 2005)|publisher=Sismología Universidad de Chile|language=Spanish|accessdate=8 September 2010|archiveurl=https://web.archive.org/web/20061231163803/http://www.sismologia.cl/home/terrem.html|archivedate=31 December 2006|url-status=dead}}

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• {{EQ-isc-link|527122}}

{{Earthquakes in 1985}}

{{Earthquakes in Chile}}

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1985 Rapel

Category:1985 earthquakes

Category:1985 in Chile

Earthquake, 1985

1985 Rapel Lake earthquake

1985 Rapel Lake earthquake

Category:April 1985 in South America