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Weak mag. 2.7 earthquake - Provincia de Alajuela, 47 km east of Liberia, Costa Rica, on Tuesday, Dec 6, 2022 at 7:01 pm (GMT -6) -

Weak magnitude 2.7 earthquake at 5 km depth

7 Dec 01:07 UTC: First to report: INETER after 5 minutes.

Earthquake details

Date & time	Dec 7, 2022 01:01:53 UTC -
Local time at epicenter	Tuesday, Dec 6, 2022 at 7:01 pm (GMT -6)
Status	Confirmed
Magnitude	2.7
Depth	5.0 km
Epicenter latitude / longitude	10.691°N / 85.008°W (Provincia de Alajuela, Costa Rica)
Antipode	10.691°S / 94.992°E
Shaking intensity	Weak shaking
Felt	1 report
Primary data source	INETER
Nearest volcano	Tenorio (2 km / 1 mi)
Nearby towns and cities	7 km (4 mi) SE of Bijagua (Alajuela) (pop: 1,090) \| Show on map \| Quakes nearby 21 km (13 mi) E of Fortuna (Guanacaste) (pop: 1,770) \| Show on map \| Quakes nearby 23 km (14 mi) S of Upala (Alajuela) (pop: 4,190) \| Show on map \| Quakes nearby 31 km (19 mi) NNE of Canas (Cañas, Guanacaste) (pop: 20,300) \| Show on map \| Quakes nearby 32 km (20 mi) SSE of San Jose (Upala, Alajuela) (pop: 31,400) \| Show on map \| Quakes nearby 115 km (71 mi) NW of Alajuela (pop: 47,500) \| Show on map \| Quakes nearby 124 km (77 mi) NW of San Francisco (Heredia) (pop: 55,900) \| Show on map \| Quakes nearby 132 km (82 mi) NW of San Jose (San José) (pop: 335,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Few Clouds 19.6°C (67 F), humidity: 89%, wind: 2 m/s (4 kts) from NE
Estimated seismic energy released	7.1 x 10⁸ joules (197 kilowatt hours, equivalent to 0.169 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
2.7	5 km	32 Km Al Sureste De Cuatro Bocas, Costa Rica	INETER
2.7	5 km	COSTA RICA	EMSC
2.7	5 km	Costa Rica	RaspberryShake

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Seismograms

Seismic station: Heredia, Costa Rica (HDC/G network) | Distance from quake: 124 km / 77 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 (1)

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.

Translate

Playa Hermosa Guanacaste Costa Rica / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s

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