Earthquake LogM6.6 earthquake, Eritrea, 1977-12-28
MagnitudeM6.6ms
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Depth33 km
Time (UTC)1977-12-28 02:45
Rank in 197724 / 85among M6+
Rank since 19003465 / 14,458
Energy vs an M6×8approx.
144 km NE of Massawa, Eritrea · 16.66, 40.28
M6.5+ within 300 km (largest first)
M6.6
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.2 1945-03-31 | 1945-03-31 22:07 | 15 km | 22 km S of Adi Keyh, Eritrea |
| M6.1 1921-08-14 | 1921-08-14 13:15 | 15 km | 160 km NNW of Edd, Eritrea |
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.