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M8.0 earthquake, Japan, 1960-03-20

MagnitudeM8.0mw

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Depth15 km

Time (UTC)1960-03-20 17:07

Rank in 19603 / 136among M6+

Rank since 1900108 / 14,458

Energy vs an M6×841approx.

113 km ENE of Miyako, Japan · 39.87, 143.23

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

1938 M7.7M7.7

1978 M7.7M7.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1960-02-04	1960-02-04 16:50	25 km	off the east coast of Honshu, Japan
M6.5 1959-10-26	1959-10-26 07:35	20 km	177 km E of Namie, Japan
M7.0 1959-01-22	1959-01-22 05:10	35 km	117 km E of Namie, Japan
M6.1 1958-09-03	1958-09-03 08:10	25 km	139 km E of Hachinohe, Japan
M6.3 1958-04-11	1958-04-11 00:58	20 km	off the east coast of Honshu, Japan
M6.2 1958-04-07	1958-04-07 18:30	15 km	167 km ESE of ?funato, Japan
M6.8 1958-04-07	1958-04-07 18:05	10 km	off the east coast of Honshu, Japan
M6.1 1958-02-16	1958-02-16 06:04	35 km	77 km SSE of ?funato, Japan
M6.1 1957-06-12	1957-06-12 08:28	35 km	133 km ENE of Misawa, Japan
M6.1 1956-11-21	1956-11-21 07:33	41 km	102 km E of Ishinomaki, 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.