The 1960 Concepción earthquakes were a succession of three destructive earthquakes that happened between 21 and 22 May 1960. They formed part of the foreshock sequence for the 1960 Valdivia earthquake, the largest recorded earthquake in history.
The first was on May 21 at 06:02 UTC-4.Servicio Sismológico Universidad de Chile, Sismos importantes o destructivos desde 1570 Its epicenter was near Cañete, Arauco Province, Chile, and its magnitude was 8.1 or 8.3MW and 7.3 or 7.5MS. This earthquake, which lasted 35 seconds, destroyed a third of the buildings in the city of Concepción.
The earthquake effectively interrupted and ended Lota's coal miners march on Concepción where they demanded higher salaries.
+ First earthquake intensityJean Pierre Rothe: The seismicity of the earth, 1953–1965. UNESCO, Paris 1969. (Abstract in the United States Geological Survey web site )21 May at 6:02 UTC earthquake City MMI Damage Concepción IX 125 dead. A third of the buildings were destroyed. Talcahuano IX 65% of buildings were destroyed. Coronel IX Lota IX Lebu X
The second happened on May 22 at 06:30 UTC-4. Its epicenter was in the Nahuelbuta National Park, Malleco Province, Chile, and its magnitude was 7.1 Mw. It was followed by a 6.8 Mw earthquake at 06:32 UTC-4.
The third happened the same day at 14:56 UTC-4. Its epicenter was near Purén, Malleco Province, Chile and its magnitude was 7.8 MS or 7.8 Mw. This earthquake happened 15 minutes before the 1960 Valdivia earthquake.
See also 1960 Valdivia earthquake List of earthquakes in 1960 List of earthquakes in Chile
References
External links