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M6.9 earthquake, Alaska, 1951-02-13

MagnitudeM6.9mw

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Depth20 km

Time (UTC)1951-02-13 22:13

Rank in 195112 / 135among M6+

Rank since 19001816 / 14,458

Energy vs an M6×22approx.

143 km ESE of Chignik, Alaska · 55.80, -156.28

M6.5+ within 300 km (largest first)

1938 M8.2M8.2

2021 M8.2M8.2

2020 M7.8M7.8

2020 M7.6M7.6

1917 M7.4M7.4

2025 M7.3M7.3

1912 M7.1M7.1

1923 M7.0M7.0

1989 M7.0M7.0

1912 M7.0M7.0

1999 M7.0M7.0

1993 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1948-06-27	1948-06-27 21:39	25 km	108 km SSW of Akhiok, Alaska
M6.0 1948-05-26	1948-05-26 09:16	25 km	109 km S of Akhiok, Alaska
M6.2 1945-03-18	1945-03-18 18:54	25 km	189 km SE of Chignik, Alaska
M6.2 1944-11-10	1944-11-10 13:16	25 km	148 km SSW of Akhiok, Alaska
M6.5 1941-09-28	1941-09-28 05:34	100 km	60 km ENE of Chignik, Alaska
M6.2 1941-04-01	1941-04-01 10:41	15 km	117 km SSE of Akhiok, Alaska
M6.1 1940-03-16	1940-03-16 20:40	15 km	118 km ESE of Chignik, Alaska
M6.2 1939-05-09	1939-05-09 07:28	25 km	108 km SSW of Akhiok, Alaska
M6.2 1938-12-09	1938-12-09 03:55	25 km	19 km SW of Old Harbor, Alaska
M6.9 1938-11-17	1938-11-17 03:54	35 km	105 km ESE of Perryville, 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.