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M6.6 earthquake, Mexico, 1938-07-22

MagnitudeM6.6mw

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Depth20 km

Time (UTC)1938-07-22 07:48

Rank in 193844 / 149among M6+

Rank since 19003932 / 14,458

Energy vs an M6×7approx.

233 km SW of La Cruz de Loreto, Mexico · 18.66, -107.16

M6.5+ within 300 km (largest first)

1932 M7.7M7.7

1900 M7.3M7.3

1934 M7.0M7.0

1905 M7.0M7.0

1997 M6.9M6.9

1925 M6.9M6.9

1931 M6.8M6.8

1965 M6.7M6.7

1933 M6.7M6.7

1972 M6.6M6.6

2016 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.4 1937-12-22	1937-12-22 03:37	15 km	236 km SSW of Emiliano Zapata, Mexico
M6.0 1937-09-20	1937-09-20 07:03	15 km	103 km SSW of Emiliano Zapata, Mexico
M6.2 1937-07-11	1937-07-11 17:19	15 km	287 km SSE of Cabo San Lucas, Mexico
M6.1 1936-12-25	1936-12-25 20:04	15 km	127 km SSW of Barra de Navidad, Mexico
M7.0 1934-11-30	1934-11-30 02:05	15 km	102 km SW of Barra de Navidad, Mexico
M6.7 1933-12-13	1933-12-13 21:23	20 km	53 km SSW of El Colomo, Mexico
M6.0 1933-07-09	1933-07-09 05:34	15 km	180 km SSW of Barra de Navidad, Mexico
M6.0 1933-04-09	1933-04-09 21:03	15 km	177 km WSW of La Cruz de Loreto, Mexico
M6.4 1933-04-09	1933-04-09 03:58	15 km	86 km SW of La Manzanilla, Mexico
M7.7 1932-06-22	1932-06-22 12:59	25 km	12 km NNE of La Central, 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.