Earthquake LogM6.9 earthquake, South Shetland Islands, 1983-07-11
MagnitudeM6.9mw
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Depth10 km
Time (UTC)1983-07-11 12:56
Rank in 198318 / 136among M6+
Rank since 19001870 / 14,458
Energy vs an M6×22approx.
South Shetland Islands · -60.89, -53.02
M6.5+ within 300 km (largest first)
M6.9
M6.9
M6.9
M6.7
M6.6
M6.5
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.0 1981-01-18 | 1981-01-18 03:06 | 22 km | South Shetland Islands |
| M6.2 1979-09-23 | 1979-09-23 23:03 | 10 km | Scotia Sea |
| M6.3 1969-09-27 | 1969-09-27 09:04 | 10 km | South Shetland Islands |
| M6.1 1964-04-19 | 1964-04-19 14:12 | 10 km | South Shetland Islands |
| M6.9 1941-11-18 | 1941-11-18 10:14 | 10 km | Scotia Sea |
| M6.4 1938-04-02 | 1938-04-02 06:01 | 10 km | Scotia Sea |
| M6.0 1937-10-07 | 1937-10-07 07:51 | 15 km | South Shetland Islands |
| M6.1 1928-12-27 | 1928-12-27 04:46 | 10 km | Scotia Sea |
| M6.7 1907-01-08 | 1907-01-08 05:21 | 15 km | Scotia Sea |
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.