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M7.1 earthquake, Russia, 1920-10-18

MagnitudeM7.1mw

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Depth60 km

Time (UTC)1920-10-18 08:11

Rank in 19206 / 69among M6+

Rank since 19001282 / 14,458

Energy vs an M6×42approx.

147 km E of Kuril’sk, Russia · 45.39, 149.74

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

1937 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 1920-09-21	1920-09-21 17:42	15 km	east of the Kuril Islands
M6.0 1919-07-16	1919-07-16 04:09	75 km	94 km SSW of Kuril’sk, Russia
M6.0 1919-02-12	1919-02-12 20:47	15 km	Kuril Islands
M6.3 1919-02-12	1919-02-12 12:41	15 km	east of the Kuril Islands
M7.8 1918-11-08	1918-11-08 04:38	15 km	east of the Kuril Islands
M6.5 1918-09-14	1918-09-14 17:04	15 km	254 km E of Kuril’sk, Russia
M8.1 1918-09-07	1918-09-07 17:16	15 km	1918 Kuril Islands Earthquake
M6.2 1918-05-31	1918-05-31 08:46	35 km	154 km SE of Kuril’sk, Russia
M6.2 1916-02-06	1916-02-06 10:52	15 km	northwest of the Kuril Islands
M6.7 1915-08-06	1915-08-06 13:12	15 km	153 km E of Shikotan, 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.