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M7.0 earthquake, Japan, 1961-08-11

MagnitudeM7.0mw

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Depth44 km

Time (UTC)1961-08-11 15:51

Rank in 196111 / 104among M6+

Rank since 19001370 / 14,458

Energy vs an M6×34approx.

48 km SW of Nemuro, Japan · 43.06, 145.10

M6.5+ within 300 km (largest first)

1994 M8.3M8.3

1968 M8.2M8.2

1969 M8.2M8.2

2003 M8.2M8.2

1952 M8.1M8.1

1968 M7.9M7.9

1919 M7.7M7.7

1973 M7.7M7.7

1993 M7.6M7.6

1935 M7.5M7.5

2003 M7.4M7.4

1968 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1961-02-15	1961-02-15 10:45	34 km	73 km E of Shikotan, Russia
M6.3 1961-02-12	1961-02-12 23:26	34 km	Kuril Islands
M6.9 1961-02-12	1961-02-12 21:53	38 km	78 km E of Shikotan, Russia
M6.4 1959-01-30	1959-01-30 22:16	25 km	50 km N of Kushiro, Japan
M6.4 1959-01-30	1959-01-30 20:39	25 km	45 km NNE of Kushiro, Japan
M6.2 1959-01-22	1959-01-22 07:33	15 km	49 km SSE of Motomachi, Japan
M6.1 1958-11-13	1958-11-13 04:04	45 km	113 km SSE of Kuril’sk, Russia
M6.2 1958-07-21	1958-07-21 07:25	45 km	106 km ENE of Shikotan, Russia
M6.0 1958-02-15	1958-02-15 01:46	35 km	54 km E of Shikotan, Russia
M6.1 1957-06-12	1957-06-12 08:28	35 km	133 km ENE of Misawa, 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.