Very strong mag. 6.2 earthquake - North Pacific Ocean, 64 km west of Liberia, Provincia de Guanacaste, Costa Rica, on Thursday, April 29, 2004 at 00:57 (GMT)

Very strong mag. 6.2 earthquake - North Pacific Ocean, 64 km west of Liberia, Provincia de Guanacaste, Costa Rica, on Thursday, April 29, 2004 at 00:57 (GMT)

Very strong magnitude 6.2 earthquake at 10 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Apr 29, 2004 00:57:21 UTC
Magnitude: 6.2
Depth: 10.0 km
Epicenter latitude / longitude: 10.805°N / 85.995°W (North Pacific Ocean, Costa Rica)
Antipode: 10.805°S / 94.005°E
Nearest volcano: Orosí (60 km / 37 mi)
Nearby towns and cities:
50 km (31 mi) SW of La Cruz (pop: 4,320) --> See nearby quakes!
50 km (31 mi) NW of Sardinal (pop: 3,270) --> See nearby quakes!
64 km (40 mi) WNW of Liberia (pop: 45,400) --> See nearby quakes!
75 km (47 mi) NW of Santa Cruz (pop: 12,300) --> See nearby quakes!
94 km (58 mi) NW of Nicoya (pop: 15,300) --> See nearby quakes!
95 km (59 mi) W of San Jose (Upala) (pop: 31,400) --> See nearby quakes!
150 km (93 mi) S of Managua (Nicaragua) (pop: 973,100) --> See nearby quakes!
157 km (97 mi) NW of Puntarenas (pop: 35,700) --> See nearby quakes!
214 km (133 mi) WNW of Alajuela (pop: 47,500) --> See nearby quakes!
231 km (143 mi) WNW 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!) | about seismic energy
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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
6.210 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.
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Aftershocks

[More info]

Recorded aftershocks, latest first (26 quakes)

Date and timeMag
Depth
LocationDetails
Oct 17, 2004 07:25
17 years ago
3.4

10 km
North Pacific Ocean, 82 km S of Managua, NicaraguaMore
Oct 16, 2004 03:32
17 years ago
4.1

115 km
North Pacific Ocean, 110 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Oct 11, 2004 10:09
17 years ago
4.3

35 km
North Pacific Ocean, 60 km S of Diriamba, Carazo, NicaraguaMore
Oct 10, 2004 19:02
17 years ago
4.2

99 km
Carrillo, 25 km S of Liberia, Provincia de Guanacaste, Costa RicaMore
Oct 10, 2004 14:36
17 years ago
4.3

27 km
North Pacific Ocean, 64 km S of Diriamba, Carazo, NicaraguaMore
Aug 29, 2004 00:58
17 years ago
4.0

90 km
North Pacific Ocean, 94 km NW of Liberia, Provincia de Guanacaste, Costa RicaMore
Jul 4, 2004 07:53
18 years ago
4.1

10 km
North Pacific Ocean, 107 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Jul 4, 2004 04:21
18 years ago
4.1

10 km
North Pacific Ocean, 112 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Jun 20, 2004 02:26
18 years ago
4.1

10 km
North Pacific Ocean, 58 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Jun 10, 2004 21:02
18 years ago
4.2

85 km
5.2 km NW of Liberia, Provincia de Guanacaste, Costa RicaMore
Jun 2, 2004 07:01
18 years ago
4.6

10 km
North Pacific Ocean, Costa Rica, 100 km SW of Nicaragua, NicaraguaMore
May 30, 2004 03:44
18 years ago
3.9

93 km
Carrillo, 29 km SW of Liberia, Provincia de Guanacaste, Costa RicaMore
May 24, 2004 00:28
18 years ago
4.3

47 km
North Pacific Ocean, 88 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
May 17, 2004 17:57
18 years ago
4.2

56 km
7.7 km SE of Nicaragua, Departamento de Rivas, NicaraguaMore
May 12, 2004 02:49
18 years ago
4.6

29 km
North Pacific Ocean, 74 km NW of Liberia, Provincia de Guanacaste, Costa RicaMore
May 1, 2004 09:16
18 years ago
4.1

10 km
5.6 km NW of Nicaragua, Departamento de Rivas, NicaraguaMore
Apr 29, 2004 20:26
18 years ago
4.5

10 km
North Pacific Ocean, 63 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 09:27
18 years ago
4.5

10 km
North Pacific Ocean, 59 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 06:44
18 years ago
4.0

14 km
North Pacific Ocean, 97 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 05:27
18 years ago
3.8

10 km
North Pacific Ocean, 94 km SW of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 05:21
18 years ago
4.2

10 km
North Pacific Ocean, 75 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 04:17
18 years ago
4.1

10 km
North Pacific Ocean, 35 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 03:08
18 years ago
4.1

10 km
North Pacific Ocean, 37 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 02:52
18 years ago
4.7

10 km
North Pacific Ocean, 59 km W of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 01:54
18 years ago
4.7

16 km
North Pacific Ocean, 92 km SW of Liberia, Provincia de Guanacaste, Costa RicaMore
Apr 29, 2004 01:12
18 years ago
4.3

10 km
North Pacific Ocean, 38 km W of Liberia, Provincia de Guanacaste, Costa RicaMore

Earlier earthquakes in the same area

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