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M7.7 earthquake, Japan, 1993-07-12

MagnitudeM7.7mw

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Depth17 km

Time (UTC)1993-07-12 13:17

Rank in 19932 / 148among M6+

Rank since 1900271 / 14,458

Energy vs an M6×355approx.

107 km W of Iwanai, Japan · 42.85, 139.20

M6.5+ within 300 km (largest first)

1993 M7.7M7.7

1940 M7.5M7.5

1983 M7.4M7.4

1947 M7.1M7.1

1964 M7.0M7.0

1913 M6.8M6.8

1983 M6.7M6.7

1982 M6.7M6.7

1922 M6.7M6.7

1964 M6.6M6.6

1921 M6.6M6.6

2018 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1992-08-24	1992-08-24 06:59	120 km	9 km NNW of Honch?, Japan
M6.2 1992-07-12	1992-07-12 11:08	64 km	70 km ENE of Mutsu, Japan
M6.4 1991-11-26	1991-11-26 19:40	56 km	33 km SSE of Shizunai-furukawach?, Japan
M6.0 1988-01-02	1988-01-02 12:42	177 km	6 km SSE of Shimo-furano, Japan
M6.4 1985-03-28	1985-03-28 16:07	166 km	9 km N of Takanosu, Japan
M6.7 1983-06-21	1983-06-21 06:25	10 km	122 km WNW of Shimokizukuri, Japan
M6.3 1983-06-09	1983-06-09 13:04	28 km	85 km W of Noshiro, Japan
M6.0 1983-06-09	1983-06-09 12:49	31 km	85 km W of Noshiro, Japan
M7.4 1983-05-26	1983-05-26 02:59	24 km	83 km WNW of Noshiro, Japan
M6.7 1982-03-21	1982-03-21 02:32	44 km	19 km S of Shizunai-furukawach?, Japan

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.