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M6.9 earthquake, Papua New Guinea, 1971-09-25

MagnitudeM6.9mw

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Depth112 km

Time (UTC)1971-09-25 04:36

Rank in 197119 / 143among M6+

Rank since 19001776 / 14,458

Energy vs an M6×23approx.

47 km WNW of Lae, Papua New Guinea · -6.53, 146.62

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

1947 M7.4M7.4

1987 M7.4M7.4

1992 M7.2M7.2

1997 M7.2M7.2

1989 M7.1M7.1

2011 M7.1M7.1

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 1971-08-23	1971-08-23 04:08	10 km	134 km N of Madang, Papua New Guinea
M6.6 1971-03-13	1971-03-13 19:12	110 km	37 km N of Goroka, Papua New Guinea
M6.3 1970-11-12	1970-11-12 06:07	24 km	59 km W of Madang, Papua New Guinea
M6.9 1970-10-31	1970-10-31 17:53	60 km	49 km WNW of Madang, Papua New Guinea
M6.1 1968-09-16	1968-09-16 16:00	65 km	80 km WNW of Kandrian, Papua New Guinea
M6.8 1968-09-16	1968-09-16 13:55	39 km	93 km WNW of Kandrian, Papua New Guinea
M6.0 1967-04-02	1967-04-02 17:40	25 km	75 km W of Kandrian, Papua New Guinea
M6.6 1966-12-23	1966-12-23 15:50	55 km	74 km SE of Finschhafen, 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

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.