Major magnitude 7.4 earthquake - North Pacific Ocean, 23 km southeast of Zihuatanejo, Guerrero, Mexico, on Monday, February 22, 1943 at 09:20 (GMT)
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Major magnitude 7.4 earthquake at 20 km depth
Depth: 20.0 km
Epicenter latitude / longitude: 17.457°N / 101.451°W↗ (North Pacific Ocean, Mexico)
Antipode: 17.457°S / 78.549°E↗
Nearest volcano: Paricutín (Michoacán-Guanajuato) (242 km / 150 mi)
Nearby towns and cities:
9 km (6 mi) S of Barra de Potosi (pop: 396) --> See nearby quakes!
20 km (12 mi) S of San Miguelito (pop: 1,070) --> See nearby quakes!
21 km (13 mi) WSW of Petatlan (Petatlán) (pop: 21,700) --> See nearby quakes!
23 km (15 mi) SSE of Zihuatanejo (pop: 67,400) --> See nearby quakes!
37 km (23 mi) SSE of Pantla (pop: 3,920) --> See nearby quakes!
46 km (28 mi) WNW of Papanoa (pop: 3,510) --> See nearby quakes!
91 km (57 mi) WNW of Técpan de Galeana (pop: 15,100) --> See nearby quakes!
100 km (62 mi) SE of Lazaro Cardenas (pop: 79,200) --> See nearby quakes!
102 km (63 mi) SE of Las Guacamayas (pop: 38,000) --> See nearby quakes!
329 km (204 mi) SW 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
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.
|7.4||20 km||offshore Guerrero, Mexico||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Recorded aftershocks, latest first (1 quake)
- 10 Jan 1944 20:09 UTC| M 6.6 |15 km (9.3 mi) depth|84 km (52 mi) distance| USGS | Very strong mag. 6.6 earthquake - 0.5 km southeast of Carrizal Cinta Larga, Técpan de Galeana, Guerrero, Mexico, on Monday, January 10, 1944 at 20:09 (GMT)