1977 San Juan earthquake
 San Juan
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| Date | 23 November 1977 |
|---|---|
| Magnitude | 7.4 Ms |
| Depth | 17 km (11 mi) |
| Epicenter | 31°05′S 67°47′W / 31.08°S 67.78°WCoordinates: 31°05′S 67°47′W / 31.08°S 67.78°W |
| Max. intensity | IX |
| Casualties | 65 |
The 1977 San Juan earthquake, also known as Caucete earthquake, took place in the province of San Juan, Argentina, on 23 November at 09:26:23 AM. It measured 7.4 on the surface wave magnitude scale, and had a maximum perceived intensity of IX (Violent) on the Mercalli intensity scale.
The earthquake caused fatalities and severe damage to buildings throughout the province, especially in the city of Caucete, where at least 65 people died. It also caused slight damage in the north of the Greater Mendoza metropolitan area.
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