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M6.6 earthquake, Mexico, 1915-11-21

MagnitudeM6.6mw

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Depth10 km

Time (UTC)1915-11-21 00:13

Rank in 191523 / 71among M6+

Rank since 19003886 / 14,458

Energy vs an M6×7approx.

Baja California-Sonora Border Region, Mexico · 31.93, -114.94

M6.5+ within 300 km (largest first)

1992 M7.3M7.3

2010 M7.2M7.2

1940 M6.9M6.9

1956 M6.8M6.8

1918 M6.7M6.7

1942 M6.6M6.6

1968 M6.6M6.6

1987 M6.6M6.6

1903 M6.6M6.6

1915 M6.6M6.6

1956 M6.5M6.5

1966 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1915-06-23	1915-06-23 03:59	–	The 1915 Imperial Valley, California Earthquakes (First Major Event)
M6.3 1906-04-19	1906-04-19 00:30	–	The 1906 Imperial Valley, California Earthquake
M6.6 1903-01-24	1903-01-24 05:27	–	Colorado River Delta area, Baja California, Mexico

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.