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M7.2 earthquake, Mexico, 1917-12-29

MagnitudeM7.2mw

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Depth20 km

Time (UTC)1917-12-29 22:50

Rank in 191710 / 87among M6+

Rank since 19001015 / 14,458

Energy vs an M6×59approx.

31 km S of San Francisco Cozoaltepec, Mexico · 15.53, -96.75

M6.5+ within 300 km (largest first)

1928 M8.0M8.0

1907 M7.8M7.8

1978 M7.7M7.7

1931 M7.6M7.6

1928 M7.5M7.5

1999 M7.5M7.5

1908 M7.5M7.5

1928 M7.4M7.4

1937 M7.4M7.4

1965 M7.4M7.4

1995 M7.4M7.4

2012 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.3 1917-10-19	1917-10-19 16:37	15 km	111 km S of San Mateo del Mar, Mexico
M6.3 1917-03-06	1917-03-06 03:05	15 km	127 km SSE of El Coyul, Mexico
M6.6 1916-11-21	1916-11-21 06:25	16 km	99 km SE of Crucecita, Mexico
M7.0 1916-06-02	1916-06-02 13:59	100 km	7 km N of Jesús Carranza, Mexico
M6.3 1913-06-14	1913-06-14 08:37	35 km	29 km SSE of El Carrizal, Mexico
M6.5 1910-09-24	1910-09-24 03:32	20 km	4 km ESE of Santa María Jicaltepec, Mexico
M7.5 1908-03-26	1908-03-26 23:03	25 km	6 km S of Copala, Mexico
M7.8 1907-04-15	1907-04-15 06:08	30 km	2 km NW of Teojomulco, Mexico
M7.4 1903-01-14	1903-01-14 01:48	–	Near the coast of Oaxaca, 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.