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M6.6 earthquake, Mexico, 2011-04-07

MagnitudeM6.6mww

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Depth166 km

Time (UTC)2011-04-07 13:11

Rank in 201141 / 207among M6+

Rank since 19003706 / 14,458

Energy vs an M6×8approx.

7 km SW of Helio García Alfaro, Mexico · 17.21, -94.34

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

None

M6.5+ within 300 km (largest first)

2017 M8.2M8.2

1902 M7.8M7.8

1978 M7.7M7.7

1931 M7.6M7.6

1928 M7.4M7.4

1965 M7.4M7.4

2020 M7.4M7.4

1903 M7.4M7.4

1914 M7.2M7.2

1995 M7.2M7.2

1916 M7.0M7.0

1925 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 2008-02-12	2008-02-12 12:50	83 km	9 km SSW of General Pascual Fentes, Mexico
M6.1 2007-07-06	2007-07-06 01:09	113 km	6 km N of Lázaro Cárdenas, Mexico
M6.4 2002-01-16	2002-01-16 23:09	80 km	2 km SW of Las Brisas, Mexico
M6.4 2001-11-28	2001-11-28 14:32	85 km	2 km ESE of El Carmen, Mexico
M6.0 2001-01-19	2001-01-19 01:12	93 km	6 km NNE of Hidalgo, Mexico
M6.1 2000-12-04	2000-12-04 04:43	33 km	104 km SW of El Palmarcito, Mexico
M6.3 1998-06-07	1998-06-07 23:20	87 km	2 km NNE of Cabeza de Toro, Mexico
M6.4 1998-02-03	1998-02-03 03:02	33 km	2 km E of Benito Juárez, Mexico
M6.4 1996-12-31	1996-12-31 12:41	100 km	4 km SW of El Ramal (Porvenir), Mexico
M7.2 1995-10-21	1995-10-21 02:38	159 km	13 km NW of Ocozocoautla de Espinosa, 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.