M 6.0 - 77 km SE of San Agustín de Valle Fértil, Argentina
- 1977-11-23 09:34:58 (UTC)
- 31.178°S 66.957°W
- 33.0 km depth
ShakeMap
- The data below are the most preferred data available
- The data below have NOT been reviewed by a scientist.
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Earthquake Hazards Program
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