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Very strong mag. 6.4 earthquake - 43 km northeast of Isla Cabo Blanco Island, Provincia de Puntarenas, Costa Rica, on Sunday, March 25, 1990 at 13:16 GMT

Very strong mag. 6.4 earthquake - 43 km northeast of Isla Cabo Blanco Island, Provincia de Puntarenas, Costa Rica, on Sunday, March 25, 1990 at 13:16 GMT Very strong mag. 6.4 earthquake - 43 km northeast of Isla Cabo Blanco Island, Provincia de Puntarenas, Costa Rica, on Sunday, March 25, 1990 at 13:16 GMT

Very strong magnitude 6.4 earthquake at 27 km depth

Earthquake details

Date & timeMar 25, 1990 13:16:06 UTC
Local time at epicenter
StatusConfirmed
Magnitude6.4
Depth26.6 km
Epicenter latitude / longitude9.814°N / 84.828°W (North Pacific Ocean, Costa Rica)
Antipode9.814°S / 95.172°E
Shaking intensityStrong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoCerro San Miguel (27 km / 17 mi)
Nearby towns and cities12 km (7 mi) E of Paquera (pop: 1,510) | Show on map | Quakes nearby
18 km (11 mi) S of Puntarenas (pop: 35,700) | Show on map | Quakes nearby
20 km (12 mi) SSW of Chacarita (pop: 26,400) | Show on map | Quakes nearby
27 km (17 mi) SW of Esparza (Espíritu Santo) (pop: 15,600) | Show on map | Quakes nearby
59 km (37 mi) W of San Rafael Abajo (Puriscal) (pop: 27,400) | Show on map | Quakes nearby
79 km (49 mi) WSW of San Francisco (pop: 55,900) | Show on map | Quakes nearby
81 km (50 mi) WSW of Heredia (pop: 21,900) | Show on map | Quakes nearby
83 km (51 mi) W of San Jose (pop: 335,000) | Show on map | Quakes nearby
100 km (62 mi) W of Cartago (pop: 26,600) | Show on map | Quakes nearby
197 km (123 mi) W of Ciudad de Limon (pop: 63,100) | Show on map | Quakes nearby
Estimated seismic energy released2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) | about seismic energy
Show interactive Map
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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.
Mag.DepthLocationSource
6.427 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.

Aftershocks

[More info]

Recorded aftershocks, latest first (15 quakes)

Date and timeMag
Depth
LocationDetails
Aug 30, 1990 22:20
32 years ago
5.0

54 km
Turrubares, 56 km W of San Jose, San José, Costa RicaMore
Jul 23, 1990 05:27
32 years ago
5.5

29 km
71 km SW of San Jose, San José, Costa RicaMore
Jun 30, 1990 14:55
32 years ago
4.8

10 km
Santo Domingo, Provincia de Heredia, 6 km NW of San Jose, San José, Costa RicaMore
Jun 30, 1990 14:51
32 years ago
5.5

8.1 km
Puriscal, 35 km W of San Jose, San José, Costa RicaMore
Jun 9, 1990 00:34
32 years ago
4.7

25 km
Escazu, 7.9 km W of San Jose, San José, Costa RicaMore
Jun 8, 1990 00:31
32 years ago
4.7

10 km
Puriscal, 28 km W of San Jose, San José, Costa RicaMore
Jun 1, 1990 03:28
32 years ago
4.3

33 km
Sarchi, Provincia de Alajuela, 34 km NW of San Jose, San José, Costa RicaMore
May 29, 1990 19:56
32 years ago
4.7

40 km
Santa Barbara, Provincia de Heredia, 12 km NW of San Jose, San José, Costa RicaMore
May 10, 1990 21:15
32 years ago
4.9

33 km
43 km E of Isla Cabo Blanco Island, Provincia de Puntarenas, Costa RicaMore
Apr 16, 1990 21:08
32 years ago
4.8

33 km
Puntarenas, Provincia de Puntarenas, 83 km W of San Jose, San José, Costa RicaMore
Apr 3, 1990 11:52
33 years ago
4.6

33 km
4.3 km S of Puntarenas, Costa RicaMore
Mar 27, 1990 14:52
33 years ago
4.9

36 km
39 km E of Isla Cabo Blanco Island, Provincia de Puntarenas, Costa RicaMore
Mar 26, 1990 10:48
33 years ago
3.3

10 km
28 km SW of Puntarenas, Costa RicaMore
Mar 25, 1990 21:35
33 years ago
5.7

41 km
50 km E of Isla Cabo Blanco Island, Provincia de Puntarenas, Costa RicaMore
Mar 25, 1990 13:22
33 years ago
7.3

22 km
7.2 km SE of Puntarenas, Costa RicaMore

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