Moderate mag. 4.7 earthquake - North Pacific Ocean, 78 km southwest of San Jose, Costa Rica, on Saturday, 27 Feb 2021 6:01 pm (GMT -6) -

Moderate mag. 4.7 earthquake - North Pacific Ocean, 78 km southwest of San Jose, Costa Rica, on Saturday, 27 Feb 2021 6:01 pm (GMT -6)

Moderate magnitude 4.7 earthquake at 3 km depth

28 Feb 00:07 UTC: First to report: INETER after 5 minutes.
28 Feb 00:14: Magnitude recalculated from 4.8 to 4.7. Hypocenter depth recalculated from 6.0 to 3.0 km (from 3.7 to 1.9 mi). Epicenter location corrected by 4 km (2.5 mi) towards NE.
Date & time: 28 Feb 2021 00:01:50 UTC -
Local time at epicenter: Saturday, 27 Feb 2021 6:01 pm (GMT -6)
Magnitude: 4.7
Depth: 3.0 km
Epicenter latitude / longitude: 9.41°N / 84.56°W (North Pacific Ocean, Costa Rica)
Nearest volcano: Poas (98 km / 61 mi)
Nearby towns and cities:
24 km (15 mi) SSE of Jaco (pop: 4,090) --> See nearby quakes!
52 km (32 mi) SW of Tejar (Acosta) (pop: 22,400) --> See nearby quakes!
55 km (34 mi) SSW of San Rafael Abajo (Puriscal) (pop: 27,400) --> See nearby quakes!
68 km (42 mi) SSE of Chacarita (pop: 26,400) --> See nearby quakes!
78 km (49 mi) SW of San Jose (pop: 335,000) --> See nearby quakes!
80 km (50 mi) SW of San Francisco (pop: 55,900) --> See nearby quakes!
80 km (50 mi) SW of Curridabat (pop: 34,600) --> See nearby quakes!
82 km (51 mi) SW of San Francisco de Heredia (Heredia) (pop: 21,900) --> See nearby quakes!
87 km (54 mi) SW of Cartago (pop: 26,600) --> See nearby quakes!
179 km (111 mi) WSW of Puerto Limon (pop: 63,100) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 28.5°C (83 F), humidity: 67%, wind: 2 m/s (4 kts) from SW
Primary data source: INETER
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 tons of TNT) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
4.73 km24 Km Al Sur De Jacó, Costa RicaINETER
5.117 km26 Km Al Sur De Jaco, Garabito., Costa RicaRSN
4.617 km25 Km SSE of Jacó, Costa RicaUSGS

User reports for this quake (16)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Playa Hermosa, Garabito, Puntarenas (19.9 km NNW of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : A slight roll, followed a few seconds later by a strong kick, followed by fading rolling over the next few seconds. Maybe 7 seconds from start to finish.  
84.3 km NE of epicenter [Map] / not felt : Estaba en reposo y ni así (reported through our app)  
75.4 km NNE of epicenter [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s (reported through our app)
San Jose (42.6 km NE of epicenter) [Map] / Very weak shaking (MMI II)
44.1 km E of epicenter [Map] / Very weak shaking (MMI II) : Just one weak jolt (reported through our app)  
23.6 km NNW of epicenter [Map] / Very weak shaking (MMI II)
jaco (22.4 km NNW of epicenter) [Map] / Light shaking (MMI IV) / 10-15 s : The bed was shaking, a mirror attached to the wall was swinging perpendicular to the wall.  
JACO Beach / Light shaking (MMI IV) : Sitting on my butt on the beach I rocked side to side and my daughter felt it toooo  
JACO Beach / Light shaking (MMI IV) : Sitting on my butt on the beach I rocked side to side and my daughter felt it toooo  
Esterillos Oeste, Costa Rica / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Jaco / Moderate shaking (MMI V)
Esterillos Oeste / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : 2 very small wave, second A bit bigger  
Jaco / Weak shaking (MMI III) : Bed swayed back and forth a little  
Jaco / Weak shaking (MMI III)
Jaco / Light shaking (MMI IV) / horizontal (sideways) swinging / 15-20 s
Jaco / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area since 1900

Map of earlier quakes

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.