| 7.4 Ms|
| 17 km (11 mi)|
23 November 1977
| 1944 San Juan earthquake, 1894 San Juan earthquake, 1977 Vrancea earthquake, 2010 Baja California earthquake, 2007 Peru earthquake|1977 San Juan earthquake Wikipedia
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.