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M7.4 earthquake, Mexico, 2012-03-20

MagnitudeM7.4mww

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Depth20 km

Time (UTC)2012-03-20 18:02

Rank in 20127 / 133among M6+

Rank since 1900616 / 14,458

Energy vs an M6×126approx.

6 km E of Santiago Llano Grande, Mexico · 16.49, -98.23

M5.5+ within 100 km in the next 30 days

Event	Time (UTC)	Depth	Place
M6.0 2012-04-02	2012-04-02 17:36	9 km	7 km SSW of Santa María Cortijo, Mexico

M6.5+ within 300 km (largest first)

1928 M8.0M8.0

1907 M7.8M7.8

1978 M7.7M7.7

1931 M7.6M7.6

1957 M7.6M7.6

1911 M7.5M7.5

1928 M7.5M7.5

1909 M7.5M7.5

1999 M7.5M7.5

1908 M7.5M7.5

1928 M7.4M7.4

1937 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 2011-12-11	2011-12-11 01:47	59 km	6 km SSW of Nuevo Balsas, Mexico
M6.3 2010-06-30	2010-06-30 07:22	20 km	2 km ESE of San Agustín Chayuco, Mexico
M6.0 2007-04-13	2007-04-13 05:42	34 km	5 km SE of El Paraíso, Mexico
M6.8 2002-04-18	2002-04-18 05:02	25 km	27 km SSW of Nuxco, Mexico
M7.5 1999-09-30	1999-09-30 16:31	61 km	15 km W of San Baltazar Loxicha, Mexico
M7.0 1999-06-15	1999-06-15 20:42	70 km	1 km SE of Texcala, Mexico
M6.4 1998-02-03	1998-02-03 03:02	33 km	2 km E of Benito Juárez, Mexico
M6.0 1997-12-16	1997-12-16 11:48	10 km	46 km SSW of Barra de Tecoanapa, Mexico
M6.9 1997-07-19	1997-07-19 14:22	33 km	4 km ENE of El Ciruelo, Mexico
M6.2 1996-02-25	1996-02-25 09:17	12 km	7 km SE of Santa María Chico Ometepec, 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.