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M6.9 earthquake, Japan, 1978-03-07

MagnitudeM6.9mb

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Depth439 km

Time (UTC)1978-03-07 02:48

Rank in 197813 / 90among M6+

Rank since 19001852 / 14,458

Energy vs an M6×22approx.

244 km SE of Shing?, Japan · 32.01, 137.61

M6.5+ within 300 km (largest first)

1946 M8.3M8.3

1944 M8.1M8.1

1948 M7.4M7.4

1906 M7.4M7.4

2004 M7.4M7.4

1956 M7.3M7.3

1905 M7.2M7.2

1910 M7.2M7.2

1984 M7.2M7.2

2004 M7.2M7.2

2009 M7.1M7.1

1915 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1978-03-07	1978-03-07 02:48	442 km	248 km SE of Shing?, Japan
M6.1 1974-11-29	1974-11-29 22:05	419 km	Izu Islands, Japan region
M6.5 1974-05-08	1974-05-08 23:33	2 km	25 km SW of Shimoda, Japan
M6.0 1974-02-22	1974-02-22 00:36	385 km	107 km SE of Shing?, Japan
M6.3 1968-02-28	1968-02-28 12:08	344 km	189 km S of ?yama, Japan
M6.2 1966-01-11	1966-01-11 14:16	18 km	81 km SSE of Shima, Japan
M6.4 1965-11-12	1965-11-12 17:52	21 km	Izu Islands, Japan region
M6.0 1962-08-26	1962-08-26 06:48	15 km	76 km SE of Shimoda, Japan
M6.2 1962-01-04	1962-01-04 04:35	50 km	13 km SSW of Tanabe, Japan
M6.3 1960-01-31	1960-01-31 05:08	20 km	70 km ESE of Muroto-misakicho, 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.