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M6.6 earthquake, Papua New Guinea, 1970-12-28

MagnitudeM6.6mw

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Depth62 km

Time (UTC)1970-12-28 20:03

Rank in 197044 / 152among M6+

Rank since 19003962 / 14,458

Energy vs an M6×7approx.

174 km ESE of Kokopo, Papua New Guinea · -5.22, 153.58

M6.5+ within 300 km (largest first)

1919 M8.2M8.2

1971 M8.1M8.1

1971 M8.0M8.0

2000 M8.0M8.0

1916 M8.0M8.0

1975 M7.9M7.9

2017 M7.9M7.9

2016 M7.9M7.9

1939 M7.8M7.8

1920 M7.8M7.8

2000 M7.8M7.8

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1970-10-02	1970-10-02 06:15	41 km	77 km SW of Panguna, Papua New Guinea
M6.1 1970-09-23	1970-09-23 23:12	48 km	86 km WSW of Panguna, Papua New Guinea
M6.3 1970-09-23	1970-09-23 12:04	38 km	96 km W of Panguna, Papua New Guinea
M6.5 1970-08-28	1970-08-28 01:02	59 km	107 km ESE of Kokopo, Papua New Guinea
M6.2 1970-07-19	1970-07-19 09:22	18 km	23 km NNE of Rabaul, Papua New Guinea
M6.2 1970-05-09	1970-05-09 18:00	180 km	38 km WSW of Rabaul, Papua New Guinea
M6.0 1970-03-28	1970-03-28 07:45	50 km	91 km W of Panguna, Papua New Guinea
M6.1 1969-08-05	1969-08-05 16:32	50 km	201 km ESE of Kokopo, Papua New Guinea
M6.4 1968-03-07	1968-03-07 13:22	49 km	104 km ESE of Kimbe, Papua New Guinea
M7.3 1968-02-12	1968-02-12 05:44	26 km	166 km SE of Kokopo, 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.