1974 Lima earthquake explained

1974 Lima earthquake
Timestamp:	1974-10-03 14:21:31
Isc-Event:	736021
Anss-Url:	iscgem736021
Local-Time:	09:21:31
Magnitude:	8.1
Depth:	36km (22miles)
Location:	-12.25°N -77.52°W
Countries Affected:	Peru
Casualties:	78 killed, 2,400 injured

The 1974 Lima earthquake occurred on October 3 at 14:21 UTC (09:21 local time). It was located at about southwest of Lima, Peru.^[1] The magnitude of the earthquake was put at 8.1, or 7.8. The earthquake caused 78 deaths and left 2,400 injured.^[2]

Background

The intensity around Lima was generally about MM V to VII, but the maximum reached IX. Two buildings of reinforced concrete collapsed in La Molina, where the intensity was MM VIII to IX.^[3] A four-story reinforced concrete building in Callao collapsed.

The largest aftershock occurred on November 9, 1974, at 12:59 UTC (07:59 local time) with a magnitude of 7.1, or 7.1.^[4] The November 9 aftershock was located at about 25 km south of the main shock.

See also

• List of earthquakes in 1974
• List of earthquakes in Peru

Notes and References

1. Web site: Peru: 1974 October 03 14:21:29 UTC: Magnitude 8.1. USGS . Historic Earthquakes .
2. Web site: Instituto Nacional de Defensa Civil - INDECI. Instituto Nacional de Defensa Civil . https://web.archive.org/web/20171214050531/http://www.indeci.gob.pe/proyecto58530/objetos/archivos/index.php . December 14, 2017 .
3. Morales-Soto . Nelson . Zavala . Carlos . Terremotos en el litoral central del Perú: ¿podría ser Lima el escenario de un futuro desastre? . Earthquakes in the central coast of Peru: could it be Lima the scene of a future disaster? . Spanish . Revista Peruana de Medicina Experimental y Salud Publica . April 2008 . 25 . 2 . 217–224 .
4. Langer . C. J. . Spence . William . The 1974 Peru earthquake series . Bulletin of the Seismological Society of America . 1 June 1995 . 85 . 3 . 665–687 .