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M7.0 earthquake, Japan, 1927-08-18

MagnitudeM7.0mw

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Depth20 km

Time (UTC)1927-08-18 19:27

Rank in 192710 / 111among M6+

Rank since 19001378 / 14,458

Energy vs an M6×33approx.

125 km ESE of Katsuura, Japan · 34.55, 141.49

M6.5+ within 300 km (largest first)

1923 M8.0M8.0

1953 M7.9M7.9

2011 M7.9M7.9

1923 M7.8M7.8

1938 M7.8M7.8

1938 M7.7M7.7

1938 M7.6M7.6

1972 M7.3M7.3

1906 M7.3M7.3

1923 M7.2M7.2

1905 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1924-09-24	1924-09-24 18:41	35 km	69 km ESE of Hitachi, Japan
M6.6 1924-08-25	1924-08-25 14:31	25 km	98 km ESE of Kitaibaraki, Japan
M6.3 1924-08-17	1924-08-17 02:09	15 km	164 km ESE of Hasaki, Japan
M6.3 1924-08-17	1924-08-17 01:45	10 km	129 km E of Hasaki, Japan
M6.4 1924-08-14	1924-08-14 23:27	10 km	135 km ESE of Kitaibaraki, Japan
M7.1 1924-08-14	1924-08-14 18:02	15 km	67 km ENE of Kashima-shi, Japan
M6.1 1924-05-31	1924-05-31 12:27	15 km	125 km ENE of Hasaki, Japan
M6.3 1924-05-31	1924-05-31 12:02	35 km	5 km NNE of Omigawa, Japan
M7.0 1924-01-14	1924-01-14 20:50	15 km	3 km NE of Sayama, Japan
M6.3 1923-12-27	1923-12-27 14:39	35 km	92 km ENE of Hasaki, 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.