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M6.6 earthquake, New Caledonia, 1981-09-17

MagnitudeM6.6ms

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Depth30 km

Time (UTC)1981-09-17 08:23

Rank in 198124 / 83among M6+

Rank since 19003479 / 14,458

Energy vs an M6×8approx.

291 km ESE of Tadine, New Caledonia · -22.52, 170.51

M6.5+ within 300 km (largest first)

1901 M7.9M7.9

1995 M7.7M7.7

2021 M7.7M7.7

2023 M7.7M7.7

1928 M7.6M7.6

2018 M7.5M7.5

1998 M7.5M7.5

2003 M7.3M7.3

1906 M7.2M7.2

1980 M7.2M7.2

2016 M7.2M7.2

1935 M7.1M7.1

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1981-09-06	1981-09-06 11:02	31 km	178 km E of Tadine, New Caledonia
M6.2 1981-07-29	1981-07-29 01:11	40 km	181 km E of Tadine, New Caledonia
M7.0 1981-07-06	1981-07-06 03:08	33 km	southeast of the Loyalty Islands
M6.0 1981-02-19	1981-02-19 08:23	33 km	163 km E of Tadine, New Caledonia
M6.7 1981-02-17	1981-02-17 15:18	30 km	156 km E of Tadine, New Caledonia
M6.0 1980-12-17	1980-12-17 00:47	86 km	207 km E of Tadine, New Caledonia
M6.4 1980-10-29	1980-10-29 17:44	33 km	164 km E of Tadine, New Caledonia
M6.5 1980-10-25	1980-10-25 16:20	33 km	271 km ESE of Tadine, New Caledonia
M7.2 1980-10-25	1980-10-25 11:00	33 km	207 km E of Tadine, New Caledonia
M6.7 1980-10-25	1980-10-25 07:00	33 km	226 km ESE of Tadine, New Caledonia

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.