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Minor mag. 2.9 earthquake - 5 km west of Ciudad Quesada, San Carlos, Provincia de Alajuela, Costa Rica, on Wednesday, Dec 7, 2022 at 5:14 am (GMT -6) -

Minor magnitude 2.9 earthquake at 87 km depth

7 Dec 13:42 UTC: First to report: RSN after 2 hours and 28 minutes.

Earthquake details

Date & time	Dec 7, 2022 11:14:00 UTC -
Local time at epicenter	Wednesday, Dec 7, 2022 at 5:14 am (GMT -6)
Status	Confirmed
Magnitude	2.9
Depth	87.0 km
Epicenter latitude / longitude	10.326°N / 84.473°W (San Carlos, Provincia de Alajuela, Costa Rica)
Antipode	10.326°S / 95.527°E
Shaking intensity	Not felt
Felt
Primary data source	RSN
Nearest volcano	Platanar (12 km / 7 mi)
Nearby towns and cities	4 km (2 mi) S of Florencia (Alajuela) (pop: 888) \| Show on map \| Quakes nearby 5 km (3 mi) W of Ciudad Quesada (Barrio San Martín, Alajuela) (pop: 27,300) \| Show on map \| Quakes nearby 18 km (11 mi) NNW of Zarcero (Alajuela) (pop: 3,560) \| Show on map \| Quakes nearby 23 km (14 mi) WNW of Rio Segundo (Valverde Vega, Alajuela) (pop: 9,850) \| Show on map \| Quakes nearby 42 km (26 mi) NNE of Esparza (Espíritu Santo, Puntarenas) (pop: 15,600) \| Show on map \| Quakes nearby 45 km (28 mi) NW of Alajuela (pop: 47,500) \| Show on map \| Quakes nearby 53 km (33 mi) NW of San Francisco (Heredia) (pop: 55,900) \| Show on map \| Quakes nearby 61 km (38 mi) NW of San Jose (San José) (pop: 335,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	1.4 x 10⁹ joules (392 kilowatt hours, equivalent to 0.338 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.

Mag.	Depth	Location	Source
2.9	87 km	Costa Rica: 4 Km Al Sur De Florencia, San Carlos.	RSN

Most recent quakes Top 20 past 24 hrs Quakes in Costa Rica

Seismograms

Seismic station: Heredia, Costa Rica (HDC/G network) | Distance from quake: 54 km / 33 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. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

At magnitude 2.9, 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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