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M7.1 earthquake, Mexico, 1909-10-31

MagnitudeM7.1mw

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Depth10 km

Time (UTC)1909-10-31 10:23

Rank in 190910 / 44among M6+

Rank since 19001289 / 14,458

Energy vs an M6×40approx.

66 km SSW of Nuxco, Mexico · 16.64, -100.97

M6.5+ within 300 km (largest first)

1985 M8.0M8.0

1911 M7.6M7.6

1979 M7.6M7.6

1985 M7.6M7.6

2022 M7.6M7.6

1957 M7.6M7.6

1911 M7.5M7.5

1973 M7.5M7.5

1909 M7.5M7.5

1908 M7.5M7.5

1943 M7.4M7.4

1937 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.9 1909-07-31	1909-07-31 19:18	15 km	44 km SSE of San Andrés Playa Encantada (El Podrido), Mexico
M7.5 1909-07-30	1909-07-30 10:51	20 km	27 km SSE of San Andrés Playa Encantada (El Podrido), Mexico
M6.7 1908-10-13	1908-10-13 05:06	35 km	11 km SSE of Hacienda de Cabañas, Mexico
M7.2 1908-03-27	1908-03-27 03:47	25 km	15 km SSW of Colonia Luces en el Mar, Mexico
M7.5 1908-03-26	1908-03-26 23:03	25 km	6 km S of Copala, 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.