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M7.1 earthquake, Japan, 1982-07-04

MagnitudeM7.1mw

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Depth536 km

Time (UTC)1982-07-04 01:20

Rank in 19824 / 87among M6+

Rank since 19001155 / 14,458

Energy vs an M6×45approx.

west of the Bonin Islands, Japan · 27.93, 136.97

M6.5+ within 300 km (largest first)

1984 M7.4M7.4

2000 M7.4M7.4

1956 M7.3M7.3

1951 M7.1M7.1

1998 M7.1M7.1

1982 M7.1M7.1

2010 M6.8M6.8

1991 M6.7M6.7

1992 M6.7M6.7

1996 M6.7M6.7

1988 M6.7M6.7

1955 M6.7M6.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1973-01-31	1973-01-31 20:55	498 km	Bonin Islands, Japan region
M6.6 1962-12-07	1962-12-07 14:03	431 km	Izu Islands, Japan region
M7.3 1956-02-18	1956-02-18 07:34	484 km	Izu Islands, Japan region
M6.7 1955-05-14	1955-05-14 06:04	487 km	Bonin Islands, Japan region
M7.1 1951-07-11	1951-07-11 18:21	497 km	Bonin Islands, Japan region
M6.0 1912-07-24	1912-07-24 23:24	500 km	southeast of Shikoku, 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.