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M6.6 earthquake, Japan, 2011-03-11

MagnitudeM6.6ms

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Depth26 km

Time (UTC)2011-03-11 11:36

Rank in 201140 / 207among M6+

Rank since 19003705 / 14,458

Energy vs an M6×8approx.

50 km ESE of ?tsuchi, Japan · 39.24, 142.46

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

Event	Time (UTC)	Depth	Place
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 16:11	35 km	130 km E of Yamada, Japan
M6.0 2011-03-11	2011-03-11 19:02	27 km	80 km E of Yamada, Japan
M6.1 2011-03-11	2011-03-11 20:11	17 km	72 km ESE of Kamaishi, Japan
M5.8 2011-03-12	2011-03-12 01:34	22 km	101 km SE of Kamaishi, Japan
M5.8 2011-03-12	2011-03-12 03:01	20 km	56 km E of Yamada, Japan
M5.5 2011-03-12	2011-03-12 06:18	54 km	41 km ESE of Kamaishi, Japan
M5.7 2011-03-12	2011-03-12 10:53	27 km	43 km SE of Kamaishi, Japan
M5.6 2011-03-12	2011-03-12 14:03	35 km	78 km ESE of ?funato, Japan
M5.8 2011-03-12	2011-03-12 14:43	35 km	39 km E of Yamada, Japan
M5.7 2011-03-13	2011-03-13 07:56	13 km	106 km E of Miyako, Japan
M5.6 2011-03-13	2011-03-13 09:52	33 km	27 km SSE of ?funato, Japan
M5.7 2011-03-16	2011-03-16 06:29	36 km	27 km NNE of Miyako, Japan
M5.5 2011-03-18	2011-03-18 23:33	42 km	33 km ESE of Kamaishi, Japan
M5.9 2011-03-19	2011-03-19 01:22	15 km	82 km E of Miyako, Japan
M5.8 2011-03-20	2011-03-20 12:03	42 km	6 km WSW of ?tsuchi, Japan
M5.6 2011-03-22	2011-03-22 11:21	31 km	101 km E of Miyako, Japan
M5.8 2011-03-24	2011-03-24 08:21	27 km	28 km SE of Kamaishi, Japan
M6.2 2011-03-25	2011-03-25 11:36	39 km	36 km SSE of ?funato, Japan
M6.2 2011-03-27	2011-03-27 22:23	19 km	62 km E of Ishinomaki, Japan
M5.5 2011-03-29	2011-03-29 16:35	25 km	130 km E of Yamada, Japan
M6.0 2011-03-31	2011-03-31 07:15	42 km	18 km SSE of ?funato, Japan
M5.9 2011-04-01	2011-04-01 11:57	41 km	6 km SE of ?tsuchi, Japan

M6.5+ within 300 km (largest first)

2011 M9.1M9.1

1933 M8.4M8.4

1968 M8.2M8.2

1960 M8.0M8.0

1931 M7.9M7.9

1968 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
M6.0 2011-03-11	2011-03-11 10:10	26 km	76 km ESE of Yamada, Japan
M6.0 2011-03-11	2011-03-11 08:33	28 km	94 km ESE of Yamada, Japan
M6.0 2011-03-11	2011-03-11 08:31	37 km	15 km E of Namie, Japan
M6.0 2011-03-11	2011-03-11 08:27	43 km	126 km ESE of Ishinomaki, Japan
M6.1 2011-03-11	2011-03-11 08:26	17 km	178 km E of Namie, Japan
M6.0 2011-03-11	2011-03-11 07:30	49 km	17 km ESE of Namie, Japan
M6.3 2011-03-11	2011-03-11 07:29	45 km	49 km ESE of Kamaishi, Japan
M6.1 2011-03-11	2011-03-11 07:28	28 km	87 km ESE of Iwaki, Japan
M6.1 2011-03-11	2011-03-11 07:25	40 km	275 km ESE of Kamaishi, Japan
M6.3 2011-03-11	2011-03-11 06:59	36 km	off the east coast of Honshu, 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.