Earthquake LogM7.7 earthquake, Argentina, 1949-12-17
MagnitudeM7.7mw
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Depth10 km
Time (UTC)1949-12-17 06:53
Rank in 19492 / 83among M6+
Rank since 1900301 / 14,458
Energy vs an M6×343approx.
123 km W of Río Grande, Argentina · -53.97, -69.56
M6.5+ within 300 km (largest first)
M7.7
M7.6
M6.8
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.3 1930-07-13 | 1930-07-13 01:12 | 10 km | 213 km SW of Ushuaia, Argentina |
Energy ratio uses the rule that one magnitude unit is about 32 times the energy. Magnitudes and locations are USGS values and can differ from national agencies. Older records are less complete and less precise.