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Very strong mag. 6.4 earthquake - 6.2 km north of Nandayure, Provincia de Guanacaste, Costa Rica, on Tuesday, May 13, 1952 at 19:31 GMT

Very strong mag. 6.4 earthquake - 6.2 km north of Nandayure, Provincia de Guanacaste, Costa Rica, on Tuesday, May 13, 1952 at 19:31 GMT Very strong mag. 6.4 earthquake - 6.2 km north of Nandayure, Provincia de Guanacaste, Costa Rica, on Tuesday, May 13, 1952 at 19:31 GMT

Very strong magnitude 6.4 earthquake at 35 km depth

Earthquake details

Date & timeMay 13, 1952 19:31:42 UTC
Local time at epicenter
StatusConfirmed
Magnitude6.4
Depth35.0 km
Epicenter latitude / longitude10.088°N / 85.211°W (North Pacific Ocean, Costa Rica)
Antipode10.088°S / 94.789°E
Shaking intensityStrong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoCerro Chopo (45 km / 28 mi)
Nearby towns and cities6 km (4 mi) NNW of Nandayure (pop: 1,650) | Show on map | Quakes nearby
27 km (17 mi) ESE of Nicoya (pop: 15,300) | Show on map | Quakes nearby
40 km (25 mi) SSW of Canas (Cañas) (pop: 20,300) | Show on map | Quakes nearby
43 km (27 mi) WNW of Puntarenas (pop: 35,700) | Show on map | Quakes nearby
49 km (30 mi) WNW of Chacarita (pop: 26,400) | Show on map | Quakes nearby
61 km (38 mi) W of Esparza (Espíritu Santo) (pop: 15,600) | Show on map | Quakes nearby
90 km (56 mi) WSW of Ciudad Quesada (Barrio San Martín) (pop: 27,300) | Show on map | Quakes nearby
96 km (60 mi) S of San Jose (Upala) (pop: 31,400) | Show on map | Quakes nearby
119 km (74 mi) W of San Francisco (pop: 55,900) | Show on map | Quakes nearby
125 km (77 mi) W of San Jose (pop: 335,000) | 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
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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
6.435 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 (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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