Earthquake LogM7.4 earthquake, Alaska, 1917-05-31
MagnitudeM7.4mw
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Depth35 km
Time (UTC)1917-05-31 08:47
Rank in 19176 / 87among M6+
Rank since 1900559 / 14,458
Energy vs an M6×126approx.
54 km SE of Sand Point, Alaska · 54.99, -159.88
M6.5+ within 300 km (largest first)
M8.6
M8.2
M8.2
M7.8
M7.6
M7.4
M7.3
M7.2
M7.1
M7.0
M7.0
M7.0
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.1 1911-09-13 | 1911-09-13 03:04 | 35 km | 132 km E of Chignik, Alaska |
| M6.6 1910-05-13 | 1910-05-13 07:57 | 15 km | 291 km S of Sand Point, Alaska |
| M6.5 1907-08-22 | 1907-08-22 22:24 | 120 km | Bristol Bay, Alaska |
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.