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M6.6 earthquake, Japan, 2011-04-11

MagnitudeM6.6mww

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Depth11 km

Time (UTC)2011-04-11 08:16

Rank in 201142 / 207among M6+

Rank since 19003707 / 14,458

Energy vs an M6×8approx.

17 km SSW of Ishikawa, Japan · 37.00, 140.40

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

Event	Time (UTC)	Depth	Place
M5.8 2011-04-11	2011-04-11 08:16	10 km	14 km SSE of Marumori, Japan
M5.5 2011-04-11	2011-04-11 11:42	10 km	20 km SSW of Ishikawa, Japan
M5.9 2011-04-12	2011-04-12 05:07	11 km	8 km WSW of Ishikawa, Japan
M5.8 2011-04-16	2011-04-16 02:19	77 km	6 km ENE of Tanuma, Japan
M5.6 2011-04-21	2011-04-21 16:11	56 km	20 km ENE of Namie, Japan

M6.5+ within 300 km (largest first)

2011 M9.1M9.1

1923 M8.0M8.0

2011 M7.9M7.9

1923 M7.8M7.8

1938 M7.8M7.8

1938 M7.7M7.7

1978 M7.7M7.7

1964 M7.6M7.6

1915 M7.6M7.6

1938 M7.6M7.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.1 2011-04-07	2011-04-07 14:32	42 km	29 km ESE of Ishinomaki, Japan
M6.0 2011-03-31	2011-03-31 07:15	42 km	18 km SSE of ?funato, Japan
M6.1 2011-03-29	2011-03-29 10:54	15 km	114 km E of Namie, Japan
M6.2 2011-03-27	2011-03-27 22:23	19 km	62 km E of Ishinomaki, Japan
M6.2 2011-03-25	2011-03-25 11:36	39 km	36 km SSE of ?funato, Japan
M6.1 2011-03-22	2011-03-22 09:19	31 km	72 km ESE of Namie, Japan
M6.0 2011-03-15	2011-03-15 13:31	9 km	6 km NNW of Fujinomiya, Japan
M6.0 2011-03-15	2011-03-15 13:27	28 km	109 km E of Namie, Japan
M6.0 2011-03-14	2011-03-14 06:12	14 km	123 km SE of Ishinomaki, Japan
M6.1 2011-03-13	2011-03-13 01:26	8 km	72 km E of Hasaki, Japan

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.