World Map › Major Earthquakes Since 1900 › 1977
Historic Earthquake
1977 San Juan Earthquake
23 November 1977 · San Juan Province, Mendoza · Argentina
On 23 November 1977 at 09:26 UTC, a magnitude 7.5 earthquake struck Argentina (San Juan Province, Mendoza), at a depth of 15 km. It occurred on the South American Plate, 456 km from its boundary with the Nazca Plate (subduction zone). It killed at least 65 people and injured 300.
- Date
- 23 November 1977
- Time
- 09:26 UTC
- Magnitude
- 7.5
- Depth
- 15 km
- Maximum Intensity
- IX (Mercalli)
- Deaths
- 65
- Injuries
- 300
- Estimated Damage
- 80 million US dollars
- Plate
- South American Plate
- Country
- Argentina
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 19441944 San Juan Earthquake · M 6.910,000 deaths
- 19271927 Mendoza Earthquake · M 7.4
- 1920Tu Mam · M 6.7400 deaths
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth