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M6.6 earthquake, Alaska, 1992-09-30

MagnitudeM6.6mwb

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Depth33 km

Time (UTC)1992-09-30 05:34

Rank in 199236 / 178among M6+

Rank since 19003547 / 14,458

Energy vs an M6×8approx.

117 km SW of Adak, Alaska · 51.28, -178.04

M6.5+ within 300 km (largest first)

1957 M8.6M8.6

1986 M8.0M8.0

1996 M7.9M7.9

1905 M7.6M7.6

1929 M7.3M7.3

1996 M7.3M7.3

2007 M7.2M7.2

1905 M7.2M7.2

1957 M7.2M7.2

1957 M7.1M7.1

1970 M7.1M7.1

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1992-09-30	1992-09-30 03:27	26 km	147 km WSW of Adak, Alaska
M6.1 1992-08-19	1992-08-19 00:57	10 km	193 km SE of Adak, Alaska
M6.0 1992-03-26	1992-03-26 14:14	33 km	226 km WSW of Adak, Alaska
M6.4 1992-03-13	1992-03-13 16:01	197 km	170 km WNW of Adak, Alaska
M6.0 1991-11-26	1991-11-26 10:41	24 km	68 km SE of Adak, Alaska
M6.4 1990-03-12	1990-03-12 14:41	14 km	97 km SW of Atka, Alaska
M6.1 1989-10-07	1989-10-07 17:42	33 km	197 km WSW of Adak, Alaska
M6.2 1989-10-07	1989-10-07 16:42	33 km	195 km WSW of Adak, Alaska
M6.8 1989-10-07	1989-10-07 15:48	20 km	177 km WSW of Adak, Alaska
M6.1 1989-07-03	1989-07-03 17:09	33 km	94 km SW of Atka, Alaska

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.