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M6.6 earthquake, Russia, 1925-02-01

MagnitudeM6.6mw

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Depth30 km

Time (UTC)1925-02-01 05:24

Rank in 192531 / 106among M6+

Rank since 19003400 / 14,458

Energy vs an M6×8approx.

56 km E of Shikotan, Russia · 43.83, 147.43

M6.5+ within 300 km (largest first)

1963 M8.5M8.5

1958 M8.3M8.3

1994 M8.3M8.3

1969 M8.2M8.2

1995 M7.9M7.9

1963 M7.8M7.8

1973 M7.7M7.7

1978 M7.6M7.6

1978 M7.5M7.5

1935 M7.5M7.5

1937 M7.4M7.4

1968 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.8 1925-01-28	1925-01-28 04:05	30 km	80 km ESE of Shikotan, Russia
M6.1 1925-01-03	1925-01-03 08:18	35 km	101 km SE of Nemuro, Japan
M6.9 1924-12-28	1924-12-28 22:55	75 km	48 km SW of Shikotan, Russia
M6.2 1921-10-12	1921-10-12 07:52	15 km	131 km ENE of Kuril’sk, Russia
M6.3 1921-01-02	1921-01-02 07:06	35 km	238 km SE of Kuril’sk, Russia
M7.1 1920-10-18	1920-10-18 08:11	60 km	147 km E of Kuril’sk, Russia
M6.0 1919-07-16	1919-07-16 04:09	75 km	94 km SSW of Kuril’sk, Russia
M6.2 1918-05-31	1918-05-31 08:46	35 km	154 km SE of Kuril’sk, Russia
M6.7 1915-08-06	1915-08-06 13:12	15 km	153 km E of Shikotan, Russia
M6.4 1915-06-27	1915-06-27 15:25	15 km	150 km ENE of Kuril’sk, 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.