Major magnitude 7.1 earthquake - North Pacific Ocean, 13 km south of Masachapa, Nicaragua, on Wednesday, October 24, 1956 at 14:42 (GMT)
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Major magnitude 7.1 earthquake at 35 km depth
Depth: 35.0 km
Epicenter latitude / longitude: 11.682°N / 86.556°W↗ (North Pacific Ocean, Nicaragua)
Antipode: 11.682°S / 93.444°E↗
Nearest volcano: Masaya (55 km / 34 mi)
Nearby towns and cities:
13 km (8 mi) SSW of Masachapa (pop: 5,000) --> See nearby quakes!
23 km (14 mi) SW of San Rafael del Sur (pop: 29,800) --> See nearby quakes!
40 km (25 mi) WSW of Diriamba (pop: 35,000) --> See nearby quakes!
46 km (29 mi) SW of San Marcos (pop: 23,300) --> See nearby quakes!
60 km (37 mi) SSW of Managua (pop: 973,100) --> See nearby quakes!
91 km (57 mi) SSE of Leon (pop: 144,500) --> See nearby quakes!
276 km (172 mi) SSE of Tegucigalpa (Honduras) (pop: 850,800) --> See nearby quakes!
331 km (206 mi) SE of Sensuntepeque (El Salvador) (pop: 20,400) --> See nearby quakes!
333 km (207 mi) NW of San Jose (Costa Rica) (pop: 335,000) --> See nearby quakes!
362 km (225 mi) SE of San Salvador (El Salvador) (pop: 526,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1015 joules (783 gigawatt hours, equivalent to 6.7 x 105 tons of TNT or 42.1 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.
|7.1||35 km||near the coast of Nicaragua||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 (3 quakes)
- 19 May 1957 21:00 UTC| M 5.9 |20 km (12.4 mi) depth|111 km (69 mi) distance| USGS | Details
- 27 Oct 1956 15:33 UTC| M 5.6 |90 km (55.9 mi) depth|37 km (23 mi) distance| USGS | Details
- 25 Oct 1956 05:21 UTC| M 6.2 |35 km (21.7 mi) depth|16 km (10 mi) distance| USGS | Strong mag. 6.2 earthquake - Departamento de Carazo, 17 km south of San Rafael del Sur, Nicaragua, on Thursday, October 25, 1956 at 05:21 (GMT)