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M7.4 earthquake, Russia, 1937-02-21

MagnitudeM7.4mw

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Depth30 km

Time (UTC)1937-02-21 07:02

Rank in 19373 / 98among M6+

Rank since 1900532 / 14,458

Energy vs an M6×145approx.

170 km ESE of Kuril’sk, Russia · 44.45, 149.73

M6.5+ within 300 km (largest first)

1963 M8.5M8.5

1958 M8.3M8.3

1994 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

1935 M7.5M7.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1937-02-17	1937-02-17 09:15	35 km	168 km ESE of Kuril’sk, Russia
M6.5 1935-10-02	1935-10-02 05:32	35 km	65 km S of Shikotan, Russia
M7.5 1935-09-11	1935-09-11 14:04	35 km	42 km SSW of Shikotan, Russia
M6.2 1935-06-25	1935-06-25 12:33	15 km	Kuril Islands
M6.3 1934-06-13	1934-06-13 01:50	70 km	90 km ENE of Shikotan, Russia
M6.0 1933-07-09	1933-07-09 16:07	15 km	198 km ESE of Kuril’sk, Russia
M6.7 1933-07-09	1933-07-09 12:30	15 km	195 km ESE of Kuril’sk, Russia
M6.2 1933-07-09	1933-07-09 09:28	15 km	170 km ESE of Kuril’sk, Russia
M6.4 1933-07-09	1933-07-09 01:30	15 km	179 km ESE of Kuril’sk, Russia
M6.3 1933-05-01	1933-05-01 19:51	35 km	143 km SE 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.