Major magnitude 7.4 earthquake - Mártires de Tacubaya, 6.3 km east of Santiago Llano Grande, Oaxaca, Mexico, on Tuesday, 20 March 2012 at 18:02 (GMT)

Major magnitude 7.4 earthquake - Mártires de Tacubaya, 6.3 km east of Santiago Llano Grande, Oaxaca, Mexico, on Tuesday, 20 March 2012 at 18:02 (GMT)

Major magnitude 7.4 earthquake at 20 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: 20 Mar 2012 18:02:47 UTC
Magnitude: 7.4
Depth: 20.0 km
Epicenter latitude / longitude: 16.493°N / 98.231°W (Mártires de Tacubaya, Oaxaca, Mexico)
Nearby towns and cities:
5 km (3 mi) N of Rancho Nuevo (pop: 535) --> See nearby quakes!
16 km (10 mi) SSW of San Juan Cacahuatepec (pop: 4,240) --> See nearby quakes!
19 km (12 mi) WSW of San Antonio Tepetlapa (pop: 2,620) --> See nearby quakes!
20 km (12 mi) E of Cuajinicuilapa (Guerrero) (pop: 10,300) --> See nearby quakes!
24 km (15 mi) W of San Pedro Jicayan (pop: 4,710) --> See nearby quakes!
25 km (16 mi) NW of Pinotepa Nacional (pop: 29,600) --> See nearby quakes!
29 km (18 mi) SE of Ometepec (Guerrero) (pop: 24,100) --> See nearby quakes!
49 km (31 mi) WNW of Santiago (pop: 10,100) --> See nearby quakes!
173 km (107 mi) WSW of Santa Maria (pop: 255,000) --> See nearby quakes!
340 km (211 mi) SSE of Mexico City (pop: 12,294,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 1015 joules (2206 gigawatt hours, equivalent to 1.9 x 106 tons of TNT or 118.7 atomic bombs!) More info
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
7.420 kmOaxaca, MexicoUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Aftershocks

More info
Recorded aftershocks, latest first (3672 quakes):
  • 22 Mar 2014 11:45 UTC
    | M 3.9 |
    15 km (9.3 mi) depth
    |
    96 km (60 mi) distance
    | SSN | Details
  • 22 Mar 2014 09:52 UTC
    | M 4.0 |
    62 km (38.5 mi) depth
    |
    148 km (92 mi) distance
    | SSN | Details
  • 21 Mar 2014 21:29 UTC
    | M 3.9 |
    11 km (6.8 mi) depth
    |
    161 km (100 mi) distance
    | SSN | Details
  • 21 Mar 2014 19:19 UTC
    | M 3.9 |
    2 km (1.2 mi) depth
    |
    30 km (18 mi) distance
    | SSN | Details
  • 21 Mar 2014 18:21 UTC
    | M 3.8 |
    15 km (9.3 mi) depth
    |
    47 km (29 mi) distance
    | SSN | Details
  • 20 Mar 2014 13:51 UTC
    | M 3.7 |
    67 km (41.6 mi) depth
    |
    238 km (148 mi) distance
    | SSN | Details
  • 19 Mar 2014 12:05 UTC
    | M 3.9 |
    15 km (9.3 mi) depth
    |
    291 km (181 mi) distance
    | SSN | Details
  • 19 Mar 2014 01:08 UTC
    | M 3.7 |
    2 km (1.2 mi) depth
    |
    35 km (22 mi) distance
    | SSN | Details
  • 18 Mar 2014 23:14 UTC
    | M 3.6 |
    5 km (3.1 mi) depth
    |
    224 km (139 mi) distance
    | SSN | Details
  • 18 Mar 2014 20:41 UTC
    | M 3.8 |
    5 km (3.1 mi) depth
    |
    84 km (52 mi) distance
    | SSN | Details
  • 18 Mar 2014 13:24 UTC
    | M 3.9 |
    6 km (3.7 mi) depth
    |
    250 km (156 mi) distance
    | SSN | Details
  • 18 Mar 2014 08:30 UTC
    | M 3.5 |
    10 km (6.2 mi) depth
    |
    93 km (58 mi) distance
    | SSN | Details
  • 17 Mar 2014 15:01 UTC
    | M 3.9 |
    48 km (29.8 mi) depth
    |
    195 km (121 mi) distance
    | SSN | Details
  • 17 Mar 2014 13:35 UTC
    | M 3.9 |
    8 km (5 mi) depth
    |
    65 km (40 mi) distance
    | SSN | Details
  • 17 Mar 2014 09:27 UTC
    | M 3.8 |
    13 km (8.1 mi) depth
    |
    162 km (100 mi) distance
    | SSN | Details
  • 17 Mar 2014 06:41 UTC
    | M 4.0 |
    3 km (1.9 mi) depth
    |
    77 km (48 mi) distance
    | SSN | Details
  • Show all