Strong mag. 5.5 earthquake - North Pacific Ocean, 71 km southwest of San Jose, Costa Rica, on Monday, 23 July 1990 at 05:27 (GMT)
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Strong magnitude 5.5 earthquake at 29 km depth
Date & time: 23 Jul 1990 05:27:08 UTC
Depth: 28.5 km
Epicenter latitude / longitude: 9.481°N / 84.546°W (North Pacific Ocean, Costa Rica)
Nearest volcano: Cerro San Miguel (63 km / 39 mi)
Nearby towns and cities:
18 km (11 mi) SSE of Jaco (pop: 4,090) --> See nearby quakes!
45 km (28 mi) SW of Tejar (Acosta) (pop: 22,400) --> See nearby quakes!
48 km (30 mi) SW of San Rafael Abajo (Puriscal) (pop: 27,400) --> See nearby quakes!
62 km (38 mi) SSE of Chacarita (pop: 26,400) --> See nearby quakes!
71 km (44 mi) SW of San Jose (pop: 335,000) --> See nearby quakes!
73 km (45 mi) SW of San Francisco (pop: 55,900) --> See nearby quakes!
74 km (46 mi) SW of Curridabat (pop: 34,600) --> See nearby quakes!
81 km (50 mi) WSW of Cartago (pop: 26,600) --> See nearby quakes!
175 km (109 mi) WSW of Puerto Limon (pop: 63,100) --> See nearby quakes!
349 km (217 mi) SSE of Managua (Nicaragua) (pop: 973,100) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 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.
|M 5.5||29 km||Costa Rica||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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More infoRecorded aftershocks, latest first (1 quakes):
- 30 Aug 1990 22:20 UTC| M 5.0 |53.6 km (33.3 mi) depth|30 km (19 mi) distance| USGS | Details