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M6.7 earthquake, Alaska, 1979-02-13

MagnitudeM6.7ms

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Depth33 km

Time (UTC)1979-02-13 05:34

Rank in 197917 / 86among M6+

Rank since 19002839 / 14,458

Energy vs an M6×11approx.

121 km SE of Chignik, Alaska · 55.45, -157.16

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

1912 M7.1M7.1

1991 M7.0M7.0

1923 M7.0M7.0

1989 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1979-01-27	1979-01-27 18:57	17 km	75 km ESE of King Cove, Alaska
M6.6 1978-04-12	1978-04-12 03:42	14 km	94 km SSE of Old Harbor, Alaska
M6.0 1974-04-06	1974-04-06 03:56	40 km	24 km S of Sand Point, Alaska
M6.4 1972-03-24	1972-03-24 03:38	70 km	77 km ESE of Chignik, Alaska
M6.5 1967-07-01	1967-07-01 23:10	20 km	183 km SSE of Perryville, Alaska
M6.1 1966-04-16	1966-04-16 01:27	35 km	36 km ESE of Akhiok, Alaska
M6.2 1966-01-22	1966-01-22 14:27	27 km	125 km S of Akhiok, Alaska
M6.2 1965-06-23	1965-06-23 11:09	22 km	76 km SSE of Old Harbor, Alaska
M6.1 1964-04-17	1964-04-17 04:49	10 km	99 km SSE of Old Harbor, Alaska
M6.4 1964-04-16	1964-04-16 19:26	22 km	95 km S of Old Harbor, 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.