Strong mag. 6.2 earthquake - Costa Rica on Friday, 1 March 1991 at 17:30 (GMT)

Strong mag. 6.2 earthquake - Costa Rica on Friday, 1 March 1991 at 17:30 (GMT)

Strong magnitude 6.2 earthquake at 197 km depth

Date & time: 1 Mar 1991 17:30:26 UTC
Magnitude: 6.2
Depth: 196.5 km
Epicenter latitude / longitude: 10.939°N / 84.637°W (Costa Rica)
Nearest volcano: Cerro las Mercedes (32 km / 20 mi)
Nearby towns and cities:
26 km (16 mi) SE of San Carlos (Nicaragua) (pop: 13,500) --> See nearby quakes!
41 km (26 mi) E of Upala (pop: 4,190) --> See nearby quakes!
55 km (34 mi) E of San José (Upala) (pop: 31,400) --> See nearby quakes!
72 km (45 mi) NNW of Quesada (Barrio San Martín) (pop: 27,300) --> See nearby quakes!
76 km (47 mi) NE of Canas (Cañas) (pop: 20,300) --> See nearby quakes!
94 km (58 mi) ENE of Liberia (pop: 45,400) --> See nearby quakes!
109 km (68 mi) N of Puntarenas (pop: 35,700) --> See nearby quakes!
113 km (70 mi) NNW of Alajuela (pop: 47,500) --> See nearby quakes!
119 km (74 mi) NNW of San Francisco (pop: 55,900) --> See nearby quakes!
127 km (79 mi) NNW of San Jose (pop: 335,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 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.
MagnitudeDepthLocationSource
M 6.2197 kmCosta RicaUSGS
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.
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Aftershocks

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Recorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.
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Earlier earthquakes in the same area

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