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M9.1 earthquake, Japan, 2011-03-11

MagnitudeM9.1mww

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Depth29 km

Time (UTC)2011-03-11 05:46

Rank in 20111 / 207among M6+

Rank since 19004 / 14,458

Energy vs an M6×44,668approx.

2011 Great Tohoku Earthquake, Japan · 38.30, 142.37

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

Event	Time (UTC)	Depth	Place
M6.3 2011-03-11	2011-03-11 05:58	51 km	103 km E of Namie, Japan
M6.2 2011-03-11	2011-03-11 06:00	41 km	110 km ESE of Ishinomaki, Japan
M6.3 2011-03-11	2011-03-11 06:06	43 km	47 km SE of Kamaishi, Japan
M6.2 2011-03-11	2011-03-11 06:21	52 km	128 km SE of ?funato, Japan
M6.2 2011-03-11	2011-03-11 06:23	56 km	45 km SE of Kamaishi, Japan
M5.6 2011-03-11	2011-03-11 06:37	52 km	124 km E of Namie, Japan
M5.9 2011-03-11	2011-03-11 06:46	31 km	178 km ESE of Ishinomaki, Japan
M6.2 2011-03-11	2011-03-11 06:48	12 km	134 km ESE of Ishinomaki, Japan
M5.5 2011-03-11	2011-03-11 06:52	34 km	155 km ESE of Ishinomaki, Japan
M5.9 2011-03-11	2011-03-11 06:55	40 km	164 km E of Namie, Japan
M5.6 2011-03-11	2011-03-11 07:03	19 km	142 km ESE of Ishinomaki, Japan
M5.8 2011-03-11	2011-03-11 07:04	24 km	57 km SE of Kamaishi, Japan
M5.6 2011-03-11	2011-03-11 07:06	22 km	off the east coast of Honshu, Japan
M5.8 2011-03-11	2011-03-11 07:10	34 km	134 km ESE of Ishinomaki, Japan
M5.9 2011-03-11	2011-03-11 07:23	20 km	97 km E of Namie, Japan
M6.3 2011-03-11	2011-03-11 07:29	45 km	49 km ESE of Kamaishi, Japan
M5.7 2011-03-11	2011-03-11 07:54	51 km	58 km ENE of Namie, Japan
M5.7 2011-03-11	2011-03-11 08:04	49 km	107 km E of Namie, Japan
M6.0 2011-03-11	2011-03-11 08:27	43 km	126 km ESE of Ishinomaki, Japan
M5.5 2011-03-11	2011-03-11 08:39	46 km	155 km SE of Ishinomaki, Japan
M5.6 2011-03-11	2011-03-11 08:46	26 km	128 km E of Namie, Japan
M5.6 2011-03-11	2011-03-11 11:00	42 km	52 km ENE of Namie, Japan
M5.9 2011-03-11	2011-03-11 12:12	35 km	116 km ESE of Ishinomaki, Japan
M5.8 2011-03-11	2011-03-11 12:15	50 km	40 km ESE of Kamaishi, Japan
M5.5 2011-03-11	2011-03-11 12:56	35 km	90 km SE of Ishinomaki, Japan
M5.5 2011-03-11	2011-03-11 13:18	35 km	161 km E of Namie, Japan
M6.1 2011-03-11	2011-03-11 20:11	17 km	72 km ESE of Kamaishi, Japan
M5.5 2011-03-11	2011-03-11 20:36	26 km	149 km ESE of Ishinomaki, Japan
M5.8 2011-03-12	2011-03-12 01:34	22 km	101 km SE of Kamaishi, Japan
M6.5 2011-03-12	2011-03-12 01:47	20 km	146 km E of Namie, Japan

M6.5+ within 300 km (largest first)

2011 M9.1M9.1

1933 M8.4M8.4

1960 M8.0M8.0

1931 M7.9M7.9

2011 M7.9M7.9

1938 M7.8M7.8

1994 M7.8M7.8

1938 M7.7M7.7

1978 M7.7M7.7

2011 M7.7M7.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 2011-03-09	2011-03-09 21:24	15 km	128 km SE of ?funato, Japan
M6.0 2011-03-09	2011-03-09 21:22	23 km	114 km SE of ?funato, Japan
M6.0 2011-03-09	2011-03-09 18:16	22 km	99 km E of Ishinomaki, Japan
M7.3 2011-03-09	2011-03-09 02:45	32 km	120 km SE of ?funato, Japan
M6.3 2010-07-04	2010-07-04 21:55	27 km	37 km E of Miyako, Japan
M6.5 2010-03-14	2010-03-14 08:08	32 km	59 km ENE of Namie, Japan
M6.3 2008-12-20	2008-12-20 10:29	19 km	148 km ESE of Iwaki, Japan
M6.8 2008-07-23	2008-07-23 15:26	108 km	29 km ENE of Morioka, Japan
M6.0 2008-07-21	2008-07-21 11:30	22 km	98 km ESE of Namie, Japan
M7.0 2008-07-19	2008-07-19 02:39	22 km	107 km E of Namie, 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.