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M7.2 earthquake, Guam, 1931-01-28

MagnitudeM7.2mw

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Depth15 km

Time (UTC)1931-01-28 21:24

Rank in 193113 / 124among M6+

Rank since 1900887 / 14,458

Energy vs an M6×63approx.

265 km S of Merizo Village, Guam · 10.87, 144.46

M6.5+ within 300 km (largest first)

1993 M7.8M7.8

1931 M7.2M7.2

1917 M7.1M7.1

2002 M7.1M7.1

1909 M7.0M7.0

2001 M7.0M7.0

2007 M6.9M6.9

2008 M6.8M6.8

1971 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1929-05-01	1929-05-01 07:38	20 km	206 km SW of Merizo Village, Guam
M6.0 1925-07-17	1925-07-17 03:13	35 km	247 km NE of Fais, Micronesia
M6.3 1919-03-30	1919-03-30 10:39	15 km	193 km ENE of Fais, Micronesia
M6.3 1917-11-24	1917-11-24 11:10	15 km	146 km WSW of Merizo Village, Guam
M7.1 1917-05-09	1917-05-09 15:54	15 km	261 km S of Merizo Village, Guam
M6.4 1917-05-06	1917-05-06 22:55	15 km	279 km S of Merizo Village, Guam
M7.0 1909-12-09	1909-12-09 23:28	15 km	98 km SSE of Inarajan Village, Guam

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.