1985 Algarrobo earthquake

1985 Algarrobo earthquake
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UTC time	1985-03-03 22:47
ISC event	529084
USGS-ANSS	ComCat
Local date	3 March 1985
Local time	19:47 UTC-3
Magnitude	8.0 Mw
Depth	33.0 km (20.5 mi)
Epicenter	33°08′06″S 71°52′16″W / 33.135°S 71.871°W
Areas affected	Chile
Max. intensity	VIII (Severe)
Landslides	Yes
Casualties	177 dead, 2,575 injured

The 1985 Algarrobo earthquake occurred on 3 March at 22:47 UTC (19:47 local time). Its epicenter was located on the south coasts of Valparaíso Region, Chile, close to the beach of Algarrobo. It had a magnitude of 8.0 M_w.^[1]

The earthquake was felt between the Antofagasta Region in the north, and the Araucanía Region in the south, being felt with more power in Central Chile. It reached a maximum intensity of VIII in the Mercalli intensity scale. The most affected zone was the port of San Antonio, in Valparaíso Region, together with Alhué and Melipilla in Santiago Metropolitan Region and Rengo in O'Higgins Region. The earthquake also affected Chile's capital city Santiago with great intensity.

Damage and effects[]

Houses affected in San Antonio, Valparaiso, by the 1985 Algarrobo earthquake.

The quake left 177 people dead, 2,575 injured, 85,358 houses damaged or destroyed and about a million people homeless.^[2] Many landslides were registered too, pavement breaks with the destruction of Pan-American highway in several points, broken-down bridges and considerable damage in affected town's infrastructure, with a long interruption on basic services. The damage was valued in more than 1 billion US dollars.^[3]

Region	Deaths	Injuries	Homeless			Houses
Region	Deaths	Injuries	Refugees	Non-refugees	Total	Destroyed	Minor damage
Valparaíso	68	923	3849	252 800	256 649	17 257	28 242
O'Higgins	28	254	322	190 144	190 466	6661	12 374
Maule	2	60	7	43 411	43 418	2079	5549
Santiago	80	1338	7936	488 075	496 011	59 361	63 814
Total	178	2575	12 114	974 430	986 544	85 358	109 979

References[]

^ Jump up to: ^a ^b Servicio Sismológico Universidad de Chile, Sismos importantes o destructivos desde 1570 Archived 29 June 2012 at archive.today
^ Pinochet, Augusto (11 September 1985). "Mensaje Presidencial: 11 de septiembre de 1984-11 de septiembre de 1985". Memoria Chilena.
^ El Mercurio, Grandes terremotos en Chile

External links[]

The International Seismological Centre has a bibliography and/or authoritative data for this event.

Coordinates: 33°14′24″S 72°02′24″W / 33.240°S 72.040°W / -33.240; -72.040

[uch-1] Jump up to: ^a ^b Servicio Sismológico Universidad de Chile, Sismos importantes o destructivos desde 1570 Archived 29 June 2012 at archive.today

[2] Pinochet, Augusto (11 September 1985). "Mensaje Presidencial: 11 de septiembre de 1984-11 de septiembre de 1985". Memoria Chilena.

[3] El Mercurio, Grandes terremotos en Chile

[1]

[2]

[3]

show v t Earthquakes in Chile
Historical	1420 Caldera 1570 Concepción 1575 Valdivia 1604 Arica 1615 Arica 1647 Santiago 1730 Valparaíso 1737 Valdivia 1751 Concepción 1822 Valparaíso 1835 Concepción 1837 Valdivia 1868 Arica 1877 Iquique
20th century	1906 Valparaíso 1922 Vallenar 1928 Talca 1939 Chillán 1943 Ovalle 1949 Tierra del Fuego 1953 Concepción 1960 Concepción 1960 Valdivia 1965 Valparaíso 1971 Aconcagua 1985 Algarrobo 1985 Rapel Lake 1995 Antofagasta 1997 Punitaqui
21st century	2005 Tarapacá 2007 Aysén Fjord 2007 Tocopilla 2010 Chile 2010 Pichilemu 2013 Vallenar 2014 Iquique 2015 Illapel 2016 Chiloé 2019 Coquimbo

1985 Algarrobo earthquake

Contents

Damage and effects[]

See also[]

References[]

Further reading[]

External links[]

show v t ← Earthquakes in 1985 →
Mendoza (6.2, January 26) Algarrobo (8.0, March 3) † Rapel Lake (7.5, April 8) Luquan (6.3, April 18) Wuqia (7.4, August 23) † Mexico City (8.1, September 19) † ‡ Nahanni (6.9, December 23)
† indicates earthquake resulting in at least 30 deaths ‡ indicates the deadliest earthquake of the year