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Light mag. 2.8 earthquake - Provincia de Alajuela, 27 km northeast of Canas, Costa Rica, on Wednesday, Aug 10, 2022 at 6:49 pm (GMT -6) -

Light mag. 2.8 earthquake - Provincia de Alajuela, 27 km northeast of Canas, Costa Rica, on Wednesday, Aug 10, 2022 at 6:49 pm (GMT -6) Light mag. 2.8 earthquake - Provincia de Alajuela, 27 km northeast of Canas, Costa Rica, on Wednesday, Aug 10, 2022 at 6:49 pm (GMT -6)

Light magnitude 2.8 earthquake at 2 km depth

11 Aug 00:56 UTC: First to report: INETER after 7 minutes.
11 Aug 01:01: Magnitude recalculated from 2.9 to 2.8.

Earthquake details

Date & timeAug 11, 2022 00:49:05 UTC -
Local time at epicenterWednesday, Aug 10, 2022 at 6:49 pm (GMT -6)
Depth2.0 km
Epicenter latitude / longitude10.598°N / 84.925°W (Guatuso, Provincia de Alajuela, Costa Rica)
Antipode10.598°S / 95.075°E
Shaking intensityWeak shaking
Felt1 report
Primary data sourceINETER
Nearest volcanoTenorio (13 km / 8 mi)
Nearby towns and cities15 km (10 mi) NNE of Tilaran (Tilarán, Guanacaste) (pop: 7,300) | Show on map | Quakes nearby
21 km (13 mi) SE of Bijagua (Alajuela) (pop: 1,090) | Show on map | Quakes nearby
27 km (16 mi) NE of Canas (Cañas, Guanacaste) (pop: 20,300) | Show on map | Quakes nearby
46 km (28 mi) SSE of San Jose (Upala, Alajuela) (pop: 31,400) | Show on map | Quakes nearby
62 km (39 mi) WNW of Ciudad Quesada (Barrio San Martín, Alajuela) (pop: 27,300) | Show on map | Quakes nearby
101 km (63 mi) NW of Alajuela (pop: 47,500) | Show on map | Quakes nearby
110 km (68 mi) NW of San Francisco (Heredia) (pop: 55,900) | Show on map | Quakes nearby
118 km (73 mi) NW of San Jose (San José) (pop: 335,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 22.2°C (72 F), humidity: 91%, wind: 1 m/s (2 kts) from ENE
Estimated seismic energy released1 x 109 joules (278 kilowatt hours, equivalent to 0.239 tons of TNT) | 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.
2.82 km46 Km Al Sureste De Cuatro Bocas, Costa RicaINETER
2.92 kmCosta RicaRaspberryShake


Seismic station: Las Juntas de Abangares, Costa Rica (JTS/II network) | Distance from quake: 34 km / 21 mi | Show on map | Station Info
Seismic station Las Juntas de Abangares, Costa Rica: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (1)

At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Nuevo Arenal Guanacaste Costa Rica (3.6 km SSW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 2-5 s : Sitting it was a shake from one side to another sitting in chair  

Earlier earthquakes in the same area

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