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M6.6 earthquake, Pacific-Antarctic Ridge, 1951-01-23

MagnitudeM6.6mw

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Depth10 km

Time (UTC)1951-01-23 06:52

Rank in 195121 / 135among M6+

Rank since 19003945 / 14,458

Energy vs an M6×7approx.

Pacific-Antarctic Ridge · -55.88, -135.63

M6.5+ within 300 km (largest first)

2015 M6.7M6.7

1951 M6.6M6.6

2005 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.4 1940-01-20	1940-01-20 09:58	10 km	Pacific-Antarctic Ridge
M6.1 1934-06-06	1934-06-06 03:18	10 km	Pacific-Antarctic Ridge
M6.3 1932-03-10	1932-03-10 05:17	10 km	Pacific-Antarctic Ridge
M6.3 1930-08-02	1930-08-02 16:06	10 km	Pacific-Antarctic Ridge

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.