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M6.6 earthquake, Papua New Guinea, 2011-07-31

MagnitudeM6.6mww

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Depth10 km

Time (UTC)2011-07-31 23:38

Rank in 201144 / 207among M6+

Rank since 19003709 / 14,458

Energy vs an M6×8approx.

103 km NE of Angoram, Papua New Guinea · -3.52, 144.83

M5.5+ within 100 km in the next 30 days

None

M6.5+ within 300 km (largest first)

2002 M7.6M7.6

1918 M7.6M7.6

1907 M7.3M7.3

1986 M7.2M7.2

1906 M7.1M7.1

1909 M7.1M7.1

1925 M7.0M7.0

1935 M7.0M7.0

1968 M7.0M7.0

2023 M7.0M7.0

1920 M7.0M7.0

1993 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.4 2009-04-01	2009-04-01 03:54	10 km	52 km E of Wewak, Papua New Guinea
M6.0 2008-10-28	2008-10-28 16:00	18 km	191 km N of Madang, Papua New Guinea
M6.3 2008-10-23	2008-10-23 10:04	10 km	200 km WSW of Lorengau, Papua New Guinea
M6.2 2007-06-07	2007-06-07 00:40	5 km	152 km SSW of Lorengau, Papua New Guinea
M6.0 2006-11-06	2006-11-06 20:56	133 km	97 km ESE of Madang, Papua New Guinea
M6.1 2006-03-24	2006-03-24 12:27	12 km	63 km WNW of Wewak, Papua New Guinea
M6.2 2005-11-22	2005-11-22 15:11	68 km	56 km W of Madang, Papua New Guinea
M6.6 2005-04-11	2005-04-11 12:20	11 km	192 km N of Madang, Papua New Guinea
M6.0 2004-11-05	2004-11-05 05:18	126 km	36 km SSW of Angoram, Papua New Guinea
M6.0 2004-04-22	2004-04-22 14:16	35 km	153 km SSW of Lorengau, 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.