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Minor mag. 2.7 earthquake - 25 km north of Alajuela, Costa Rica, on Thursday, Aug 11, 2022 at 10:32 am (GMT -6) -

Minor mag. 2.7 earthquake - 25 km north of Alajuela, Costa Rica, on Thursday, Aug 11, 2022 at 10:32 am (GMT -6) Minor mag. 2.7 earthquake - 25 km north of Alajuela, Costa Rica, on Thursday, Aug 11, 2022 at 10:32 am (GMT -6)

Minor magnitude 2.7 earthquake at 55 km depth

11 Aug 16:49 UTC: First to report: INETER after 16 minutes.
11 Aug 16:56: Magnitude recalculated from 3.0 to 2.7. Hypocenter depth recalculated from 60.0 to 55.0 km (from 37 to 34 mi). Epicenter location corrected by 11 km (6.8 mi) towards S.

Earthquake details

Date & timeAug 11, 2022 16:32:38 UTC -
Local time at epicenterThursday, Aug 11, 2022 at 10:32 am (GMT -6)
StatusConfirmed
Magnitude2.7
Depth55.0 km
Epicenter latitude / longitude10.234°N / 84.261°W (Sarchi, Provincia de Alajuela, Costa Rica)
Antipode10.234°S / 95.739°E
Shaking intensityNot felt
Primary data sourceINETER
Nearest volcanoPoas (5 km / 3 mi)
Nearby towns and cities2 km (1 mi) ESE of Rio Segundo (Valverde Vega, Alajuela) (pop: 9,850) | Show on map | Quakes nearby
21 km (13 mi) ESE of Ciudad Quesada (Barrio San Martín, Alajuela) (pop: 27,300) | Show on map | Quakes nearby
25 km (15 mi) NNW of Alajuela (pop: 47,500) | Show on map | Quakes nearby
29 km (18 mi) NNW of Mercedes (Heredia) (pop: 26,000) | Show on map | Quakes nearby
30 km (19 mi) NNW of San Francisco (Heredia) (pop: 55,900) | Show on map | Quakes nearby
38 km (24 mi) NW of San Vicente de Moravia (San Vicente, San José) (pop: 34,400) | Show on map | Quakes nearby
38 km (24 mi) NW of San Vicente (San José) (pop: 34,400) | Show on map | Quakes nearby
39 km (24 mi) NNW of San Jose (San José) (pop: 335,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 27°C (81 F), humidity: 84%, wind: 2 m/s (4 kts) from NNE
Estimated seismic energy released7.1 x 108 joules (197 kilowatt hours, equivalent to 0.169 tons of TNT) | 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
2.755 km14 Km Al Noroeste De Vara Blanca, Costa RicaINETER
3.282 kmCosta Rica: 4 Km Al Sureste De Toro Amarillo, Valv. Vega.RSN
3.282 kmCOSTA RICAEMSC
3.282 kmCosta RicaRaspberryShake

Seismograms

Seismic station: Heredia, Costa Rica (HDC/G network) | Distance from quake: 31 km / 19 mi | Show on map | Station Info
Seismic station Heredia, 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

At magnitude 2.7, 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.
There are no user reports for this quake.

Earlier earthquakes in the same area

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