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Moderate mag. 4.2 earthquake - North Pacific Ocean, 62 km south of Puntarenas, Costa Rica, on Sunday, Dec 27, 2020 at 10:53 pm (GMT -6)

Moderate mag. 4.2 earthquake - North Pacific Ocean, 62 km south of Puntarenas, Costa Rica, on Sunday, Dec 27, 2020 at 10:53 pm (GMT -6) Moderate mag. 4.2 earthquake - North Pacific Ocean, 62 km south of Puntarenas, Costa Rica, on Sunday, Dec 27, 2020 at 10:53 pm (GMT -6)

Moderate magnitude 4.2 earthquake at 6 km depth

28 Dec 05:13 UTC: First to report: EMSC after 20 minutes.
Update Mon, 28 Dec 2020, 05:18
Light 4.2 quake hits near Puntarenas, Provincia de Puntarenas, Costa Rica
4.2 quake 27 Dec 10:53 pm (GMT -6)
4.2 quake 27 Dec 10:53 pm (GMT -6)
A magnitude 4.2 earthquake near Puntarenas, Provincia de Puntarenas, Costa Rica, was reported only 25 minutes ago by the European-Mediterranean Seismological Centre (EMSC), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a very shallow depth of 6 km beneath the epicenter late at night on Sunday 27 December 2020 at 10:53 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the United States Geological Survey (USGS), which listed it as a magnitude 4.2 earthquake as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Parrita (pop. 3,700) located 40 km from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Desamparados (pop. 14,400) located 60 km from the epicenter, Tejar (pop. 22,400) 60 km away, San Rafael Abajo (pop. 27,400) 61 km away, Chacarita (pop. 26,400) 61 km away, Esparza (pop. 15,600) 62 km away, Puntarenas (pop. 35,700) 62 km away, Alajuela (pop. 47,500) 82 km away, and San José (pop. 335,000) 85 km away.

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Earthquake data

Earthquake details

Date & timeDec 28, 2020 04:53:26 UTC
Local time at epicenterSunday, Dec 27, 2020 at 10:53 pm (GMT -6)
StatusConfirmed
Magnitude4.2
Depth6.0 km
Epicenter latitude / longitude9.44°N / 84.68°W (North Pacific Ocean, Costa Rica)
Antipode9.44°S / 95.32°E
Shaking intensityLight shaking
Felt7 reports
Primary data sourceEMSC (European-Mediterranean Seismological Centre)
Nearest volcanoPoas (98 km / 61 mi)
Nearby towns and cities20 km (13 mi) SSW of Jaco (pop: 4,090) | Show on map | Quakes nearby
60 km (37 mi) SW of Tejar (Acosta) (pop: 22,400) | Show on map | Quakes nearby
61 km (38 mi) SW of San Rafael Abajo (Puriscal) (pop: 27,400) | Show on map | Quakes nearby
61 km (38 mi) S of Chacarita (pop: 26,400) | Show on map | Quakes nearby
62 km (38 mi) S of Esparza (Espíritu Santo) (pop: 15,600) | Show on map | Quakes nearby
62 km (39 mi) SSE of Puntarenas (pop: 35,700) | Show on map | Quakes nearby
82 km (51 mi) SW of Alajuela (pop: 47,500) | Show on map | Quakes nearby
85 km (53 mi) SW of San Jose (pop: 335,000) | Show on map | Quakes nearby
86 km (54 mi) SW of San Francisco (pop: 55,900) | Show on map | Quakes nearby
88 km (55 mi) SW of Heredia (pop: 21,900) | Show on map | Quakes nearby
Weather at epicenter at time of quakeFew Clouds 26.9°C (80 F), humidity: 74%, wind: 2 m/s (4 kts) from NE
Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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.DepthLocationSource
4.26 km- 20 km SSW of Jacó, Costa RicaEMSC
4.25.9 km20 Km SSW of Jacó, Costa RicaUSGS
4.45 km23 Km Al Sur De Jacó, Costa RicaINETER
4.53 km18 Km Al Sur De Jaco, Garabito., Costa RicaRSN

User reports for this quake (8)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Jaco Beach / Moderate shaking (MMI V) : We felt our entire building Shake from the 7th floor. Doors rattled sleepers woke up- everyone in the house noticed.  
Jaco, Garabito, Puntarenas (24 km N of epicenter) [Map] / Light shaking (MMI IV)
Chacarita, Puntarenas, Puntarenas (60.5 km N of epicenter) [Map] / not felt (reported through our app)
Woke up because my bed was shaking and continued s (20.6 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 10-15 s : Woke up because my bed was shaking and continued shaking after I awoke, very scary!  
Jaco, Garabito, Puntarenas (24 km N of epicenter) [Map] / Light shaking (MMI IV)
Jaco / Light shaking (MMI IV) / 2-5 s
Bahia Azul ,Jaco / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Jaco / Light shaking (MMI IV) / 2-5 s
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