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M6.6 earthquake, Papua New Guinea, 1966-12-23

MagnitudeM6.6mw

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Depth55 km

Time (UTC)1966-12-23 15:50

Rank in 196630 / 109among M6+

Rank since 19003436 / 14,458

Energy vs an M6×8approx.

74 km SE of Finschhafen, Papua New Guinea · -7.07, 148.28

M6.5+ within 300 km (largest first)

1906 M8.0M8.0

1906 M7.6M7.6

2022 M7.6M7.6

1938 M7.5M7.5

1963 M7.5M7.5

1945 M7.5M7.5

1947 M7.4M7.4

1987 M7.4M7.4

1999 M7.4M7.4

2010 M7.3M7.3

1992 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1966-05-02	1966-05-02 09:52	51 km	31 km NE of Kandrian, Papua New Guinea
M6.3 1965-12-07	1965-12-07 22:19	122 km	51 km ESE of Kainantu, Papua New Guinea
M6.1 1965-08-13	1965-08-13 21:57	30 km	77 km E of Finschhafen, Papua New Guinea
M7.0 1964-11-19	1964-11-19 23:35	50 km	93 km SE of Kimbe, Papua New Guinea
M6.1 1964-11-18	1964-11-18 14:34	62 km	68 km NE of Finschhafen, Papua New Guinea
M6.2 1964-08-23	1964-08-23 15:24	48 km	20 km N of Kandrian, Papua New Guinea
M6.5 1964-07-31	1964-07-31 05:52	42 km	24 km NW of Kandrian, Papua New Guinea
M6.1 1963-03-31	1963-03-31 07:07	35 km	66 km WNW of Kandrian, Papua New Guinea
M6.7 1963-02-27	1963-02-27 04:30	35 km	7 km NE of Kandrian, Papua New Guinea
M7.5 1963-02-26	1963-02-26 20:14	187 km	49 km WSW of Wau, Papua New Guinea

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.