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M6.6 earthquake, Russia, 1991-12-13

MagnitudeM6.6mw

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Depth30 km

Time (UTC)1991-12-13 02:33

Rank in 199137 / 137among M6+

Rank since 19003541 / 14,458

Energy vs an M6×8approx.

290 km E of Kuril’sk, Russia · 45.58, 151.56

M6.5+ within 300 km (largest first)

1963 M8.5M8.5

1958 M8.3M8.3

2006 M8.3M8.3

1918 M8.1M8.1

2007 M8.1M8.1

1995 M7.9M7.9

1918 M7.8M7.8

1963 M7.8M7.8

1963 M7.7M7.7

1978 M7.6M7.6

1991 M7.6M7.6

1978 M7.5M7.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1991-12-07	1991-12-07 11:59	50 km	276 km E of Kuril’sk, Russia
M6.0 1991-11-01	1991-11-01 16:52	43 km	Kuril Islands
M6.0 1991-10-08	1991-10-08 03:31	146 km	100 km ENE of Kuril’sk, Russia
M6.0 1989-12-21	1989-12-21 16:49	43 km	175 km E of Kuril’sk, Russia
M6.1 1989-01-12	1989-01-12 19:47	33 km	Kuril Islands
M6.5 1989-01-09	1989-01-09 13:42	14 km	Kuril Islands
M6.0 1987-06-13	1987-06-13 14:00	42 km	207 km ESE of Kuril’sk, Russia
M6.3 1986-07-19	1986-07-19 05:59	141 km	Kuril Islands
M6.0 1984-12-17	1984-12-17 23:56	33 km	151 km SE of Kuril’sk, Russia
M6.2 1984-12-17	1984-12-17 23:30	29 km	136 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.