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M7.4 earthquake, Japan, 2010-12-21

MagnitudeM7.4mwc

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Depth14 km

Time (UTC)2010-12-21 17:19

Rank in 20108 / 174among M6+

Rank since 1900614 / 14,458

Energy vs an M6×126approx.

Bonin Islands, Japan region · 26.90, 143.70

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

Event	Time (UTC)	Depth	Place
M5.5 2010-12-21	2010-12-21 17:40	10 km	Bonin Islands, Japan region
M5.5 2010-12-21	2010-12-21 17:41	8 km	Bonin Islands, Japan region
M5.6 2010-12-21	2010-12-21 20:18	10 km	Bonin Islands, Japan region
M5.6 2010-12-22	2010-12-22 01:31	10 km	Bonin Islands, Japan region
M6.4 2010-12-22	2010-12-22 21:49	18 km	Bonin Islands, Japan region

M6.5+ within 300 km (largest first)

2010 M7.4M7.4

1945 M7.2M7.2

1955 M6.9M6.9

1977 M6.8M6.8

1905 M6.8M6.8

1982 M6.7M6.7

1996 M6.6M6.6

1913 M6.6M6.6

1913 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 2008-03-14	2008-03-14 22:32	10 km	Bonin Islands, Japan region
M6.2 2008-02-27	2008-02-27 06:54	15 km	Bonin Islands, Japan region
M6.3 2005-02-09	2005-02-09 18:46	24 km	Bonin Islands, Japan region
M6.6 1996-11-06	1996-11-06 20:00	9 km	Bonin Islands, Japan region
M6.7 1982-01-01	1982-01-01 18:51	22 km	Bonin Islands, Japan region
M6.8 1977-12-21	1977-12-21 01:00	33 km	Volcano Islands, Japan region
M6.2 1977-04-21	1977-04-21 01:45	33 km	Bonin Islands, Japan region
M6.1 1960-12-13	1960-12-13 10:05	15 km	Bonin Islands, Japan region
M6.0 1958-11-04	1958-11-04 08:28	65 km	Bonin Islands, Japan region
M6.0 1958-06-17	1958-06-17 19:06	35 km	Volcano Islands, Japan region

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.