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M7.8 earthquake, Guam, 1993-08-08

MagnitudeM7.8mw

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Depth59 km

Time (UTC)1993-08-08 08:34

Rank in 19931 / 148among M6+

Rank since 1900195 / 14,458

Energy vs an M6×501approx.

32 km S of Inarajan Village, Guam · 12.98, 144.80

M6.5+ within 300 km (largest first)

1993 M7.8M7.8

1931 M7.2M7.2

1917 M7.1M7.1

2002 M7.1M7.1

1913 M7.0M7.0

1909 M7.0M7.0

1912 M7.0M7.0

2001 M7.0M7.0

2007 M6.9M6.9

2008 M6.8M6.8

2014 M6.7M6.7

1971 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1991-02-10	1991-02-10 14:15	156 km	54 km NNW of Yigo Village, Guam
M6.0 1985-05-31	1985-05-31 07:24	32 km	120 km SSW of Merizo Village, Guam
M6.1 1984-09-22	1984-09-22 18:10	98 km	61 km ENE of Yigo Village, Guam
M6.1 1977-09-17	1977-09-17 05:23	33 km	235 km SW of Merizo Village, Guam
M6.1 1975-11-01	1975-11-01 01:17	113 km	36 km NNW of Yigo Village, Guam
M6.2 1971-10-24	1971-10-24 02:21	20 km	294 km WSW of Merizo Village, Guam
M6.5 1971-10-24	1971-10-24 01:37	15 km	293 km WSW of Merizo Village, Guam
M6.5 1971-10-23	1971-10-23 22:33	23 km	276 km SW of Merizo Village, Guam
M6.0 1970-09-16	1970-09-16 01:49	30 km	20 km SW of Merizo Village, Guam
M6.2 1970-03-04	1970-03-04 03:30	18 km	148 km SW of Merizo 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.