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M7.6 earthquake, Russia, 1971-12-15

MagnitudeM7.6mw

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Depth20 km

Time (UTC)1971-12-15 08:29

Rank in 19715 / 143among M6+

Rank since 1900320 / 14,458

Energy vs an M6×269approx.

55 km ESE of Ust’-Kamchatsk Staryy, Russia · 55.95, 163.22

M6.5+ within 300 km (largest first)

1923 M8.4M8.4

1917 M8.0M8.0

1905 M7.8M7.8

1997 M7.8M7.8

1971 M7.6M7.6

1957 M7.6M7.6

1969 M7.4M7.4

1923 M7.4M7.4

1915 M7.3M7.3

1936 M7.3M7.3

1923 M7.3M7.3

2018 M7.3M7.3

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1970-02-06	1970-02-06 00:11	21 km	195 km SSE of Ust’-Kamchatsk Staryy, Russia
M7.4 1969-11-22	1969-11-22 23:09	33 km	172 km NNE of Ust’-Kamchatsk Staryy, Russia
M6.1 1969-01-26	1969-01-26 15:05	29 km	49 km SSE of Ust’-Kamchatsk Staryy, Russia
M6.1 1968-07-28	1968-07-28 21:12	24 km	273 km ESE of Ust’-Kamchatsk Staryy, Russia
M6.4 1966-07-19	1966-07-19 01:40	12 km	144 km E of Ust’-Kamchatsk Staryy, Russia
M6.1 1963-05-26	1963-05-26 23:06	30 km	64 km SSE of Atlasovo, Russia
M6.4 1960-10-13	1960-10-13 14:52	36 km	152 km SE of Atlasovo, Russia
M6.5 1960-07-25	1960-07-25 03:41	20 km	near the east coast of the Kamchatka Peninsula, Russia
M6.6 1959-12-27	1959-12-27 15:53	27 km	34 km SSE of Ust’-Kamchatsk Staryy, Russia
M6.1 1959-08-08	1959-08-08 00:47	25 km	152 km S of Ust’-Kamchatsk Staryy, Russia

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.