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M6.6 earthquake, south of the Kermadec Islands, 1986-08-23

MagnitudeM6.6mw

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Depth32 km

Time (UTC)1986-08-23 23:47

Rank in 198626 / 138among M6+

Rank since 19003503 / 14,458

Energy vs an M6×8approx.

south of the Kermadec Islands · -34.55, 179.29

M6.5+ within 300 km (largest first)

1997 M7.1M7.1

1984 M6.8M6.8

1970 M6.8M6.8

2001 M6.7M6.7

1938 M6.6M6.6

2011 M6.6M6.6

1986 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.8 1984-12-30	1984-12-30 21:36	39 km	150 km N of Opotiki, New Zealand
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
M6.1 1961-10-02	1961-10-02 07:02	20 km	south of the Kermadec Islands
M6.6 1938-02-13	1938-02-13 08:03	35 km	off the east coast of the North Island of New Zealand
M6.1 1928-03-23	1928-03-23 20:02	15 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.