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Weak mag. 2.7 earthquake - 16 km northeast of Liberia, Provincia de Guanacaste, Costa Rica, on Friday, Mar 17, 2023 at 7:55 pm (GMT -6) -

Weak magnitude 2.7 earthquake at 4 km depth

18 Mar 14:58 UTC: First to report: RSN after 13 hours.

Earthquake details

Date & time	Mar 18, 2023 01:55:00 UTC -
Local time at epicenter	Friday, Mar 17, 2023 at 7:55 pm (GMT -6)
Status	Confirmed
Magnitude	2.7
Depth	4.0 km
Epicenter latitude / longitude	10.742°N / 85.345°W (Liberia, Provincia de Guanacaste, Costa Rica)
Antipode	10.742°S / 94.655°E
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	RSN
Nearest volcano	Rincón de la Vieja (10 km / 6 mi)
Nearby towns and cities	16 km (10 mi) NE of Liberia (Guanacaste) (pop: 45,400) \| Show on map \| Quakes nearby 18 km (11 mi) WNW of Fortuna (Guanacaste) (pop: 1,770) \| Show on map \| Quakes nearby 26 km (16 mi) NNW of Bagaces (Guanacaste) (pop: 4,110) \| Show on map \| Quakes nearby 33 km (20 mi) SW of San Jose (Upala, Alajuela) (pop: 31,400) \| Show on map \| Quakes nearby 41 km (26 mi) NE of Sardinal (Guanacaste) (pop: 3,270) \| Show on map \| Quakes nearby 44 km (27 mi) NW of Canas (Cañas, Guanacaste) (pop: 20,300) \| Show on map \| Quakes nearby 67 km (42 mi) N of Nicoya (Guanacaste) (pop: 15,300) \| Show on map \| Quakes nearby 165 km (102 mi) WNW of San Jose (San José) (pop: 335,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
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	4 km	Costa Rica: 13 Km Al Oeste De Guayabo, Bagaces.	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: 158 km / 98 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 2.7, 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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