M 7.7 - 123 km W of Río Grande, Argentina
- 1949-12-17 06:53:32 (UTC)
- 53.972°S 69.562°W
- 10.0 km depth
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- ShakeMap
VIIImmi 
Estimated Intensity Map Origin - Review Status
- REVIEWED
- Magnitude
- 7.7 mw
- Depth
- 10.0 km
- Time
- 1949-12-17 06:53:32 UTC
View Nearby Seismicity - Time Range
± Three Weeks - Search Radius
250.0 km - Magnitude Range
≥ 4.0
Contributors ISCGEM
ISC-GEM