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M6.9 earthquake, Alaska, 2011-09-02

MagnitudeM6.9mww

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Depth32 km

Time (UTC)2011-09-02 10:55

Rank in 201124 / 207among M6+

Rank since 19001976 / 14,458

Energy vs an M6×22approx.

170 km E of Atka, Alaska · 52.17, -171.71

M5.5+ within 100 km in the next 30 days

Event	Time (UTC)	Depth	Place
M5.6 2011-09-19	2011-09-19 08:14	31 km	152 km E of Atka, Alaska

M6.5+ within 300 km (largest first)

1957 M8.6M8.6

1986 M8.0M8.0

1929 M7.8M7.8

1965 M7.8M7.8

1916 M7.4M7.4

2011 M7.3M7.3

1970 M7.1M7.1

1901 M7.1M7.1

1957 M7.1M7.1

1903 M7.0M7.0

2013 M7.0M7.0

1902 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.3 2011-06-24	2011-06-24 03:09	52 km	Fox Islands, Aleutian Islands, Alaska
M6.0 2010-10-08	2010-10-08 03:49	28 km	120 km ESE of Adak, Alaska
M6.4 2010-10-08	2010-10-08 03:26	19 km	104 km ESE of Adak, Alaska
M6.5 2010-09-03	2010-09-03 11:16	24 km	70 km SE of Adak, Alaska
M6.0 2010-07-18	2010-07-18 19:48	10 km	59 km WSW of Nikolski, Alaska
M6.7 2010-07-18	2010-07-18 05:56	14 km	66 km W of Nikolski, Alaska
M6.1 2008-11-02	2008-11-02 13:48	36 km	72 km S of Atka, Alaska
M6.4 2007-12-26	2007-12-26 22:04	25 km	60 km SE of Nikolski, Alaska
M6.1 2007-07-15	2007-07-15 13:08	15 km	74 km SE of Nikolski, Alaska
M6.4 2006-05-10	2006-05-10 02:42	18 km	54 km SSW of Nikolski, 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.