Strong mag. 6.2 earthquake - Costa Rica on Sunday, 4 October 1987 at 08:15 (GMT)

Strong mag. 6.2 earthquake - Costa Rica on Sunday, 4 October 1987 at 08:15 (GMT)

Strong magnitude 6.2 earthquake at 48 km depth

Date & time: 4 Oct 1987 08:15:18 UTC
Magnitude: 6.2
Depth: 47.9 km
Epicenter latitude / longitude: 10.823°N / 85.926°W (Costa Rica)
Nearest volcano: Orosí (52 km / 32 mi)
Nearby towns and cities:
42 km (26 mi) SW of La Cruz (pop: 4,320) --> See nearby quakes!
48 km (30 mi) S of San Juan del Sur (Nicaragua) (pop: 7,790) --> See nearby quakes!
57 km (36 mi) WNW of Liberia (pop: 45,400) --> See nearby quakes!
62 km (38 mi) SW of Cardenas (Nicaragua) (pop: 1,200) --> See nearby quakes!
69 km (43 mi) S of Tola (Nicaragua) (pop: 2,640) --> See nearby quakes!
69 km (43 mi) S of Rivas (Nicaragua) (pop: 30,000) --> See nearby quakes!
73 km (45 mi) NNW of Santa Cruz (pop: 12,300) --> See nearby quakes!
225 km (140 mi) WNW of San José (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 6.248 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.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Aftershocks of the 6.2 quake Costa Rica 4 October 1987 08:15 GMT

More info
Recorded aftershocks, latest first (1 quakes):
  • 04 Oct 1987 19:15 UTC
    | M 4.4 |
    64.2 km (39.9 mi) depth
    |
    52 km (32 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area since 1900

Strong mag. 6.2 earthquake - Costa Rica on Sunday, 4 October 1987 at 08:15 (GMT)

Map of earlier quakes

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