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M6.6 earthquake, south of the Kermadec Islands, 2011-04-18

MagnitudeM6.6mww

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Depth86 km

Time (UTC)2011-04-18 13:03

Rank in 201143 / 207among M6+

Rank since 19003708 / 14,458

Energy vs an M6×8approx.

south of the Kermadec Islands · -34.34, 179.87

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

None

M6.5+ within 300 km (largest first)

1997 M7.1M7.1

1970 M6.8M6.8

1938 M6.6M6.6

1986 M6.6M6.6

2011 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 2010-06-17	2010-06-17 13:06	170 km	south of the Kermadec Islands
M7.1 1997-05-25	1997-05-25 23:22	333 km	south of the Kermadec Islands
M6.4 1994-12-27	1994-12-27 17:32	212 km	Kermadec Islands region
M6.3 1993-08-13	1993-08-13 11:02	95 km	249 km NNE of Opotiki, New Zealand
M6.1 1991-11-20	1991-11-20 09:23	79 km	192 km NNE of Opotiki, New Zealand
M6.1 1990-05-20	1990-05-20 09:53	346 km	south of the Kermadec Islands
M6.1 1987-08-16	1987-08-16 21:38	74 km	south of the Kermadec Islands
M6.6 1986-08-23	1986-08-23 23:47	32 km	south of the Kermadec Islands
M6.8 1970-01-08	1970-01-08 17:12	199 km	south of the Kermadec Islands
M6.0 1965-09-01	1965-09-01 04:47	102 km	south of the Kermadec Islands

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.