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M6.8 earthquake, Russia, 1925-02-20

MagnitudeM6.8mw

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Depth15 km

Time (UTC)1925-02-20 01:02

Rank in 192516 / 106among M6+

Rank since 19002110 / 14,458

Energy vs an M6×19approx.

174 km E of Kuril’sk, Russia · 45.51, 150.07

M6.5+ within 300 km (largest first)

1963 M8.5M8.5

1958 M8.3M8.3

1994 M8.3M8.3

2006 M8.3M8.3

1969 M8.2M8.2

1918 M8.1M8.1

1995 M7.9M7.9

1918 M7.8M7.8

1963 M7.8M7.8

1978 M7.6M7.6

1991 M7.6M7.6

1978 M7.5M7.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.8 1925-02-02	1925-02-02 19:46	35 km	125 km ESE of Shikotan, Russia
M6.6 1925-02-01	1925-02-01 05:24	30 km	56 km E of Shikotan, Russia
M6.8 1925-01-28	1925-01-28 04:05	30 km	80 km ESE of Shikotan, Russia
M6.1 1923-08-16	1923-08-16 20:22	35 km	Kuril Islands
M6.9 1922-12-31	1922-12-31 07:20	35 km	243 km E of Kuril’sk, Russia
M6.1 1922-05-06	1922-05-06 12:19	15 km	Kuril Islands
M6.2 1922-05-05	1922-05-05 00:18	15 km	east of the Kuril Islands
M6.6 1922-05-04	1922-05-04 09:12	15 km	Kuril Islands
M6.2 1921-10-12	1921-10-12 07:52	15 km	131 km ENE of Kuril’sk, Russia
M6.3 1921-03-29	1921-03-29 22:11	35 km	Kuril Islands

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.