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M6.5 earthquake, Russia, 1983-04-04

MagnitudeM6.5mw

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Depth51 km

Time (UTC)1983-04-04 23:12

Rank in 198343 / 136among M6+

Rank since 19004326 / 14,458

Energy vs an M6×6approx.

145 km SSW of Severo-Kuril’sk, Russia · 49.41, 155.60

M6.5+ within 300 km (largest first)

1915 M7.8M7.8

2020 M7.5M7.5

1993 M7.5M7.5

2009 M7.4M7.4

1916 M7.4M7.4

1925 M7.2M7.2

1973 M7.2M7.2

1913 M7.0M7.0

1951 M7.0M7.0

1964 M7.0M7.0

1963 M6.9M6.9

2013 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.4 1983-02-26	1983-02-26 07:10	56 km	163 km SSW of Severo-Kuril’sk, Russia
M6.0 1981-08-23	1981-08-23 12:00	40 km	235 km SSE of Severo-Kuril’sk, Russia
M6.0 1978-09-15	1978-09-15 11:39	44 km	Kuril Islands
M6.1 1974-05-15	1974-05-15 18:59	56 km	Kuril Islands
M6.0 1973-11-11	1973-11-11 02:43	51 km	79 km SSE of Severo-Kuril’sk, Russia
M6.1 1973-11-08	1973-11-08 08:59	33 km	70 km S of Severo-Kuril’sk, Russia
M6.1 1973-04-12	1973-04-12 13:49	52 km	94 km SE of Ozernovskiy, Russia
M6.1 1973-03-12	1973-03-12 19:39	54 km	71 km ENE of Severo-Kuril’sk, Russia
M7.2 1973-02-28	1973-02-28 06:37	27 km	38 km ESE of Severo-Kuril’sk, Russia
M6.3 1972-08-04	1972-08-04 17:51	35 km	171 km S of Severo-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.