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M7.7 earthquake, Japan, 2011-03-11

MagnitudeM7.7mwc

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Depth19 km

Time (UTC)2011-03-11 06:25

Rank in 20113 / 207among M6+

Rank since 1900287 / 14,458

Energy vs an M6×355approx.

272 km ESE of Kamaishi, Japan · 38.06, 144.59

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

Event	Time (UTC)	Depth	Place
M6.1 2011-03-11	2011-03-11 06:29	41 km	260 km ESE of ?funato, Japan
M6.1 2011-03-11	2011-03-11 06:49	47 km	284 km ESE of Ishinomaki, Japan
M6.3 2011-03-11	2011-03-11 06:59	36 km	off the east coast of Honshu, Japan
M5.7 2011-03-11	2011-03-11 07:05	15 km	176 km ESE of Kamaishi, Japan
M6.1 2011-03-11	2011-03-11 07:25	40 km	275 km ESE of Kamaishi, Japan
M5.6 2011-03-11	2011-03-11 10:45	33 km	189 km ESE of Kamaishi, Japan
M5.7 2011-03-11	2011-03-11 22:51	39 km	off the east coast of Honshu, Japan

M6.5+ within 300 km (largest first)

2011 M9.1M9.1

1933 M8.4M8.4

1960 M8.0M8.0

1938 M7.8M7.8

1994 M7.8M7.8

1938 M7.7M7.7

1978 M7.7M7.7

2011 M7.7M7.7

1905 M7.7M7.7

1915 M7.6M7.6

1938 M7.6M7.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 2011-03-11	2011-03-11 06:23	56 km	45 km SE of Kamaishi, Japan
M6.2 2011-03-11	2011-03-11 06:21	52 km	128 km SE of ?funato, Japan
M6.3 2011-03-11	2011-03-11 06:15	35 km	221 km SE of ?funato, Japan
M6.2 2011-03-11	2011-03-11 06:13	40 km	61 km ESE of Namie, Japan
M6.2 2011-03-11	2011-03-11 06:12	25 km	261 km ESE of ?funato, Japan
M6.7 2011-03-11	2011-03-11 06:08	3 km	134 km ESE of Kamaishi, 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 06:00	41 km	110 km ESE of Ishinomaki, Japan
M6.3 2011-03-11	2011-03-11 05:58	51 km	103 km E of Namie, Japan
M6.4 2011-03-11	2011-03-11 05:55	35 km	208 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.