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M7.8 earthquake, Alaska Earthquake, 2020-07-22

MagnitudeM7.8mww

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Depth28 km

Time (UTC)2020-07-22 06:12

Rank in 20201 / 121among M6+

Rank since 1900217 / 14,458

Energy vs an M6×501approx.

2020 Perryville, Alaska Earthquake · 55.07, -158.60

M5.5+ within 100 km in the next 30 days

Event	Time (UTC)	Depth	Place
M6.1 2020-07-22	2020-07-22 06:16	17 km	101 km ESE of Sand Point, Alaska
M5.6 2020-07-22	2020-07-22 06:20	25 km	122 km ESE of Sand Point, Alaska
M5.7 2020-07-22	2020-07-22 08:13	45 km	76 km ESE of Sand Point, Alaska
M5.5 2020-07-22	2020-07-22 21:39	36 km	73 km S of Ivanof Bay, Alaska

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

2023 M7.2M7.2

1948 M7.1M7.1

1991 M7.0M7.0

1923 M7.0M7.0

1989 M7.0M7.0

1993 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 2018-12-31	2018-12-31 02:35	31 km	87 km SE of King Cove, Alaska
M6.2 2016-04-02	2016-04-02 05:50	11 km	42 km E of Port Heiden, Alaska
M6.8 2015-05-29	2015-05-29 07:00	73 km	117 km SSE of Ugashik, Alaska
M6.1 2011-07-16	2011-07-16 19:59	36 km	72 km ESE of King Cove, Alaska
M6.3 2007-10-02	2007-10-02 18:00	32 km	72 km SSE of King Cove, Alaska
M6.4 2002-05-25	2002-05-25 05:36	33 km	159 km SSE of King Cove, Alaska
M6.4 1999-10-13	1999-10-13 01:33	30 km	85 km ESE of King Cove, Alaska
M6.2 1995-03-14	1995-03-14 17:33	35 km	70 km ESE of King Cove, Alaska
M6.2 1993-05-25	1993-05-25 23:16	37 km	35 km S of Sand Point, Alaska
M6.9 1993-05-13	1993-05-13 11:59	32 km	17 km S of Sand Point, 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.