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M6.8 earthquake, Japan, 1938-10-12

MagnitudeM6.8mw

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Depth15 km

Time (UTC)1938-10-12 00:34

Rank in 193831 / 149among M6+

Rank since 19002596 / 14,458

Energy vs an M6×14approx.

202 km ENE of Miyako, Japan · 40.56, 144.00

M6.5+ within 300 km (largest first)

2011 M9.1M9.1

1933 M8.4M8.4

1968 M8.2M8.2

2003 M8.2M8.2

1952 M8.1M8.1

1960 M8.0M8.0

1931 M7.9M7.9

1968 M7.9M7.9

1994 M7.8M7.8

1919 M7.7M7.7

2011 M7.7M7.7

1905 M7.7M7.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.4 1937-01-07	1937-01-07 06:12	35 km	near the east coast of Honshu, Japan
M7.2 1936-11-02	1936-11-02 20:45	35 km	83 km E of Ishinomaki, Japan
M6.2 1936-06-03	1936-06-03 02:55	35 km	74 km S of Shizunai-furukawach?, Japan
M6.2 1936-03-10	1936-03-10 20:35	25 km	123 km S of Kushiro, Japan
M6.7 1936-03-02	1936-03-02 03:19	25 km	126 km S of Kushiro, Japan
M6.5 1935-10-18	1935-10-18 14:53	15 km	185 km ENE of Miyako, Japan
M7.2 1935-10-18	1935-10-18 00:11	15 km	192 km ENE of Miyako, Japan
M7.1 1935-10-12	1935-10-12 16:45	15 km	136 km ENE of Miyako, Japan
M6.1 1935-09-18	1935-09-18 08:23	35 km	53 km ESE of Shizunai-furukawach?, Japan
M6.3 1933-09-21	1933-09-21 09:47	15 km	off the east coast of Honshu, 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.