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M7.0 earthquake, Japan, 1916-04-21

MagnitudeM7.0mw

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Depth15 km

Time (UTC)1916-04-21 11:31

Rank in 191612 / 57among M6+

Rank since 19001376 / 14,458

Energy vs an M6×33approx.

208 km SE of Katsuura, Japan · 33.70, 141.76

M6.5+ within 300 km (largest first)

1923 M8.0M8.0

1953 M7.9M7.9

2011 M7.9M7.9

1923 M7.8M7.8

1972 M7.3M7.3

1906 M7.3M7.3

1923 M7.2M7.2

1905 M7.2M7.2

1961 M7.2M7.2

1972 M7.2M7.2

1924 M7.1M7.1

1943 M7.1M7.1

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1915-04-24	1915-04-24 17:09	15 km	154 km ESE of Hasaki, Japan
M6.5 1911-11-08	1911-11-08 14:11	15 km	53 km ESE of Hasaki, Japan
M7.1 1909-03-13	1909-03-13 14:28	15 km	150 km ESE of Hasaki, Japan
M7.0 1909-03-12	1909-03-12 23:18	15 km	82 km ENE of Hasaki, Japan
M6.4 1906-09-17	1906-09-17 04:16	20 km	73 km S of Shimoda, Japan
M7.3 1906-09-07	1906-09-07 18:52	15 km	190 km SE of Hasaki, Japan
M6.2 1906-02-24	1906-02-24 00:13	15 km	116 km ESE of Katsuura, Japan
M7.2 1905-10-24	1905-10-24 03:46	15 km	38 km SSW of Shimoda, 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.