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M6.6 earthquake, Alaska, 1949-09-27

MagnitudeM6.6mw

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Depth15 km

Time (UTC)1949-09-27 15:30

Rank in 194926 / 83among M6+

Rank since 19003314 / 14,458

Energy vs an M6×9approx.

3 km SW of Bear Creek, Alaska · 60.15, -149.44

M6.5+ within 300 km (largest first)

1964 M9.2M9.2

2016 M7.1M7.1

2018 M7.1M7.1

1906 M7.0M7.0

1928 M7.0M7.0

1943 M6.9M6.9

1933 M6.8M6.8

1936 M6.8M6.8

1965 M6.8M6.8

1934 M6.8M6.8

1954 M6.8M6.8

1934 M6.7M6.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 1946-01-12	1946-01-12 20:25	20 km	92 km SSE of Lowell Point, Alaska
M6.2 1945-11-03	1945-11-03 22:09	39 km	43 km ESE of Halibut Cove, Alaska
M6.9 1943-11-03	1943-11-03 14:32	15 km	27 km SE of Skwentna, Alaska
M6.0 1942-12-05	1942-12-05 14:28	90 km	61 km WSW of Nanwalek, Alaska
M6.4 1941-07-30	1941-07-30 01:51	35 km	19 km SSE of Tyonek, Alaska
M6.8 1936-10-23	1936-10-23 06:24	15 km	4 km NE of Beluga, Alaska
M6.7 1934-06-18	1934-06-18 09:13	60 km	6 km WNW of Nikiski, Alaska
M6.2 1934-05-14	1934-05-14 22:12	35 km	27 km NNE of Ouzinkie, Alaska
M6.8 1934-05-04	1934-05-04 04:36	25 km	31 km SSW of Glacier View, Alaska
M6.8 1933-04-27	1933-04-27 02:36	15 km	Southern 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.