1737 Valdivia earthquake

The 1737 Valdivia earthquake struck south-central Chile on December 24.[1] Together with earthquakes in 1575 and 1837 the earthquake is among the historical predecessors to the great 1960 earthquake.[1] While the overlap in affected areas is significant relative to the 1837 earthquake the 1737 earthquake may have occurred slightly more to the north.[1]

1737 Valdivia earthquake
Local dateDecember 24, 1737 (1737-12-24)
Epicenter39.813889°S 73.245833°W / -39.813889; -73.245833
Areas affectedChile
Tsunamino

The earthquake was felt in Concepción but most damage occurred in the towns of Valdivia and Castro, Chiloé Archipelago.[1] In both of these locations churches were destroyed by the earthquake. In addition the Valdivian Fort System and the Royal Storehouse of Valdivia took heavy damage.[1] Landslides occurred next to Villarrica, Calafquén, and Riñihue lakes.[1] Over all this indicates the rupture zone was about 640 km long, with most damage being concentrated in the middle section (Valdivia).[1]

There is no evidence the earthquake would have produced a tsunami.[1]

See also

References

  1. Cisternas, M.; Carvajal, M.; Wesson, R.; Ely, L.L.; Gorigoitia, N. (2018). "Exploring the Historical Earthquakes Preceding the Giant 1960 Chile Earthquake in a Time-Dependent Seismogenic Zone". Bulletin of the Seismological Society of America. 107 (6): 2664–2675. doi:10.1785/0120170103.
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