1974 Lima earthquake
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 House damage in Lima | |
  | |
| UTC time | 1974-10-03 14:21:31 |
|---|---|
| ISC event | 736021 |
| USGS-ANSS | ComCat |
| Local date | October 3, 1974 |
| Local time | 09:21:31 |
| Magnitude | Mw 8.1[1] |
| Depth | 36 km (22 mi)[1] |
| Epicenter | 12°15′S 77°31′W / 12.25°S 77.52°W[1] |
| Areas affected | Peru |
| Max. intensity | MMI IX (Violent) |
| 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 80 kilometres (50 mi) southwest of Lima, Peru.[2] The magnitude of the earthquake was put at 8.1 Mw, or Ms 7.8. The earthquake caused 78 deaths and left 2,400 injured.[2][3][4]
The intensity around Lima was generally about MM V to VII, but the maximum reached IX.[2] Two buildings of reinforced concrete collapsed in La Molina, where the intensity was MM VIII to IX.[5] A four-story reinforced concrete building in Callao collapsed.[2]
The largest aftershock occurred on November 9, 1974, at 12:59 UTC (07:59 local time) with a magnitude of Mw 7.1, or Ms 7.1.[1][4] The November 9 aftershock was located at about 25 km south of the main shock.[4]