Help Ukraine

Minor mag. 3.1 earthquake - Antofagasta, Chile, on Wednesday, Oct 20, 2021 at 2:59 pm (GMT -3) -

Minor mag. 3.1 earthquake - Antofagasta, Chile, on Wednesday, Oct 20, 2021 at 2:59 pm (GMT -3) Minor mag. 3.1 earthquake - Antofagasta, Chile, on Wednesday, Oct 20, 2021 at 2:59 pm (GMT -3)

Minor magnitude 3.1 earthquake at 116 km depth

20 Oct 18:18 UTC: First to report: EMSC after 18 minutes.
Date & time: Oct 20, 2021 17:59:50 UTC -
Local time at epicenter: Wednesday, Oct 20, 2021 at 2:59 pm (GMT -3)
Magnitude: 3.1
Depth: 116.0 km
Epicenter latitude / longitude: 22.11°S / 68.72°W (Provincia de El Loa, Antofagasta, Chile)
Antipode: 22.11°N / 111.28°E
Nearest volcano: San Pedro (42 km / 26 mi)
Nearby towns and cities:
44 km (27 mi) NNE of Calama (pop: 143,100) --> See nearby quakes!
104 km (65 mi) NNW of San Pedro de Atacama (pop: 2,000) --> See nearby quakes!
152 km (95 mi) E of Tocopilla (pop: 24,500) --> See nearby quakes!
193 km (120 mi) SW of San Cristobal de Lipez (Potosí, Bolivia) (pop: 75) --> See nearby quakes!
243 km (151 mi) NE of Antofagasta (pop: 309,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds 15.8°C (61 F), humidity: 5%, wind: 8 m/s (15 kts) from WSW
Primary data source: EMSC (European-Mediterranean Seismological Centre)
Estimated released energy: 2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 tons of TNT) | about seismic energy
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!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic 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.
Mag.DepthLocationSource
3.1116 kmANTOFAGASTA, CHILEEMSC

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.
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
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:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
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.