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Moderate mag. 4.5 earthquake - North Pacific Ocean, 115 km west of Liberia, Provincia de Guanacaste, Costa Rica, on Sunday, Mar 19, 2023 at 8:12 am (GMT -6) -

Moderate mag. 4.5 earthquake - North Pacific Ocean, 115 km west of Liberia, Provincia de Guanacaste, Costa Rica, on Sunday, Mar 19, 2023 at 8:12 am (GMT -6) Moderate mag. 4.5 earthquake - North Pacific Ocean, 115 km west of Liberia, Provincia de Guanacaste, Costa Rica, on Sunday, Mar 19, 2023 at 8:12 am (GMT -6)

Moderate magnitude 4.5 earthquake at 33 km depth

19 Mar 14:28 UTC: First to report: INETER after 16 minutes.
19 Mar 18:44: Now using data updates from USGS

Earthquake details

Date & timeMar 19, 2023 14:12:30 UTC -
Local time at epicenterSunday, Mar 19, 2023 at 8:12 am (GMT -6)
Depth32.8 km
Epicenter latitude / longitude10.7736°N / 86.4849°W (North Pacific Ocean, Costa Rica)
Antipode10.774°S / 93.515°E
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoOrosí (113 km / 70 mi)
Nearby towns and cities88 km (55 mi) NW of Tamarindo (pop: 6,380) | Show on map | Quakes nearby
96 km (60 mi) WNW of Sardinal (pop: 3,270) | Show on map | Quakes nearby
99 km (61 mi) WSW of La Cruz (pop: 4,320) | Show on map | Quakes nearby
115 km (72 mi) W of Liberia (pop: 45,400) | Show on map | Quakes nearby
149 km (92 mi) W of San Jose (Upala) (pop: 31,400) | Show on map | Quakes nearby
153 km (95 mi) S of Managua (Nicaragua) (pop: 973,100) | Show on map | Quakes nearby
201 km (125 mi) WNW of Puntarenas (pop: 35,700) | Show on map | Quakes nearby
279 km (173 mi) WNW of San Jose (pop: 335,000) | Show on map | Quakes nearby
129 km (80 mi) SW of Isla de Ometepe Island (pop: 30,000) | Show on map | Quakes nearby
Estimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 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.
4.533 km76 Km Al Noroeste De Rosario, Costa RicaUSGS
4.814 kmCosta Rica: 92 Km Al Oeste De Cabo Velas, Guanacaste.RSN
4.533 kmOff Coast of Costa RicaRaspberryShake
4.222 kmOff the Coast of Costa RicaINETER
4.448 kmOff Coast of Costa RicaGFZ


Seismic station: Managua, Nicaragua (MGAN/NU network) | Distance from quake: 155 km / 96 mi | Show on map | Station Info
Seismic station Managua, Nicaragua: 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: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

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