Moderate mag. 3.8 earthquake - North Pacific Ocean, 67 km southwest of San Isidro, Costa Rica, on Friday, Oct 22, 2021 12:22 am (GMT -6) -

Moderate mag. 3.8 earthquake - North Pacific Ocean, 67 km southwest of San Isidro, Costa Rica, on Friday, Oct 22, 2021 12:22 am (GMT -6)

Moderate magnitude 3.8 earthquake at 4 km depth

22 Oct 06:28 UTC: First to report: INETER after 6 minutes.
22 Oct 06:35: Hypocenter depth recalculated from 5.0 to 54.0 km (from 3.1 to 34 mi). Epicenter location corrected by 44 km (27 mi) towards SSW.
22 Oct 06:42: Magnitude recalculated from 3.8 to 3.6. Hypocenter depth recalculated from 54.0 to 6.0 km (from 34 to 3.7 mi). Epicenter location corrected by 35 km (22 mi) towards NNE.
22 Oct 08:21: Magnitude recalculated from 3.6 to 3.8. Hypocenter depth recalculated from 6.0 to 4.0 km (from 3.7 to 2.5 mi). Epicenter location corrected by 3.9 km (2.5 mi) towards ENE.
Date & time: Oct 22, 2021 06:22:23 UTC -
Local time at epicenter: Friday, Oct 22, 2021 12:22 am (GMT -6)
Magnitude: 3.8
Depth: 4.0 km
Epicenter latitude / longitude: 8.872°N / 84.042°W (North Pacific Ocean, Costa Rica)
Antipode: 8.872°S / 95.958°E
Nearest volcano: Irazu (126 km / 78 mi)
Nearby towns and cities:
58 km (36 mi) W of Ciudad Cortés (pop: 3,850) --> See nearby quakes!
64 km (39 mi) SSE of Quepos (pop: 7,810) --> See nearby quakes!
66 km (41 mi) SW of Daniel Flores (pop: 10,000) --> See nearby quakes!
67 km (42 mi) SW of San Isidro (pop: 34,900) --> See nearby quakes!
85 km (53 mi) WSW of Buenos Aires (pop: 11,700) --> See nearby quakes!
99 km (62 mi) SSE of Tejar (Acosta) (pop: 22,400) --> See nearby quakes!
111 km (69 mi) S of Cartago (pop: 26,600) --> See nearby quakes!
118 km (73 mi) S of San Jose (pop: 335,000) --> See nearby quakes!
129 km (80 mi) S of Alajuela (pop: 47,500) --> See nearby quakes!
166 km (103 mi) SW of Puerto Limon (pop: 63,100) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 26.2°C (79 F), humidity: 81%, wind: 2 m/s (4 kts) from WNW
Primary data source: INETER
Estimated released energy: 3.2 x 1010 joules (8.78 megawatt hours, equivalent to 7.56 tons of TNT) More info
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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.
3.84 km47 Km Al Suroeste De Dominical, Costa RicaINETER

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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