Moderate mag. 5.2 earthquake - El Loa, 36 km northeast of Calama, Provincia de El Loa, Antofagasta, Chile, on 20 May 2:27 pm (GMT -4) -

Moderate mag. 5.2 earthquake - El Loa, 36 km northeast of Calama, Provincia de El Loa, Antofagasta, Chile, on 20 May 2:27 pm (GMT -4)

Moderate magnitude 5.2 earthquake at 119 km depth

20 May 18:31 UTC: First to report: GFZ after 4 minutes.
20 May 18:34: Hypocenter depth recalculated from 140.0 to 116.0 km (from 87 to 72 mi). Epicenter location corrected by 17 km (10.9 mi) towards E.
20 May 18:48: Now using data updates from GUG (U. Chile)
Update Thu, 20 May 2021, 18:36
Moderate yet deep 5.4 quake hits near Calama, Provincia de El Loa, Antofagasta, Chile
5.4 quake 20 May 2:27 pm (GMT -4)
5.4 quake 20 May 2:27 pm (GMT -4)
Chile was shaken near Calama, Provincia de El Loa, Antofagasta, by an earthquake of magnitude 5.4 only 8 minutes ago, the German Research Centre for Geosciences (GFZ) reported.
The quake hit at an intermediate depth of 116 km beneath the epicenter near Calama, Provincia de El Loa, Antofagasta, Chile, early afternoon on Thursday 20 May 2021 at 2:27 pm local time. The strength of the earthquake may have been tempered by its relative great depth below the surface, which makes it feel weaker in absolute terms. 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 European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 5.4 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 Calama (pop. 143,100) located 48 km from the epicenter, and San Pedro de Atacama (pop. 2,000) 74 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online:
Android | iOS

Earthquake data

Date & time: May 20, 2021 18:27:55 UTC -
Local time at epicenter: 20 May 2:27 pm (GMT -4)
Magnitude: 5.2
Depth: 118.6 km
Epicenter latitude / longitude: 22.232°S / 68.675°W (El Loa, Antofagasta, Chile)
Antipode: 22.232°N / 111.325°E
Nearest volcano: San Pedro (54 km / 34 mi)
Nearby towns and cities:
36 km (22 mi) NE of Calama (pop: 143,100) --> See nearby quakes!
90 km (56 mi) NNW of San Pedro de Atacama (pop: 2,000) --> See nearby quakes!
158 km (98 mi) E of Tocopilla (pop: 24,500) --> See nearby quakes!
237 km (147 mi) NE of Antofagasta (pop: 309,800) --> See nearby quakes!
272 km (169 mi) SE of Iquique (Tarapacá) (pop: 227,500) --> See nearby quakes!
318 km (197 mi) W of Villazon (Modesto Omiste, Potosí, Bolivia) (pop: 30,300) --> See nearby quakes!
408 km (254 mi) WNW of Jujuy (Argentina) (pop: 305,900) --> See nearby quakes!
423 km (263 mi) SW of Ciudad Potosi (Potosí, Bolivia) (pop: 141,300) --> See nearby quakes!
438 km (272 mi) NW of Salta (Argentina) (pop: 512,700) --> See nearby quakes!
503 km (312 mi) SW of Sucre (Chuquisaca, Bolivia) (pop: 224,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 17.5°C (63 F), humidity: 15%, wind: 12 m/s (24 kts) from WNW
Primary data source: GUG (U. Chile)
Estimated released energy: 4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 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!
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
5.2119 kmChile: 37 Km Al NE De CalamaGUG (U. Chile)
5.1126 kmCHILE (Argentina)INPRES
5.3100 kmANTOFAGASTA, CHILEEMSC
5.110 kmChile: Near AntofagastaRENASS
5.2121 km41 Km NE of Calama, ChileUSGS
5.3120 kmNorthern ChileGFZ
5.1103 kmNorthern ChileGeoAu
5.5121 kmNorthern ChileUSP

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Translate
Calama / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
Volcanoes & Earthquakes - new app for Android

Aftershocks

[More info]

Recorded aftershocks, latest first (23 quakes)

Date and timeMag
Depth
LocationDetails
Jul 11, 2021 15:00
21 weeks ago
2.7

106 km
18 km N of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jul 11, 2021 10:14
21 weeks ago
3.8

108 km
46 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jul 9, 2021 09:40
21 weeks ago
3.3

111 km
52 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jul 5, 2021 01:48
22 weeks ago
2.6

93 km
27 km N of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jul 3, 2021 19:40
22 weeks ago
2.9

112 km
23 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 28, 2021 01:29
23 weeks ago
3.1

108 km
32 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 26, 2021 19:30
23 weeks ago
3.5

113 km
29 km E of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 24, 2021 18:30
23 weeks ago
2.6

118 km
34 km N of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 23, 2021 20:43
23 weeks ago
3.0

119 km
33 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 23, 2021 07:55
24 weeks ago
2.8

110 km
22 km N of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 22, 2021 00:36
24 weeks ago
2.6

109 km
41 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 22, 2021 00:17
24 weeks ago
3.4

112 km
46 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 14, 2021 06:39
25 weeks ago
2.9

121 km
56 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 11, 2021 08:12
25 weeks ago
2.6

115 km
35 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 8, 2021 17:00
26 weeks ago
2.6

122 km
23 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 8, 2021 14:23
26 weeks ago
2.7

115 km
51 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 7, 2021 08:46
26 weeks ago
2.7

119 km
36 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 5, 2021 23:18
26 weeks ago
4.0

120 km
El Loa, 29 km E of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 4, 2021 21:07
26 weeks ago
2.7

102 km
40 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
Jun 4, 2021 03:57
26 weeks ago
2.6

104 km
42 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
May 25, 2021 05:26
28 weeks ago
2.5

111 km
48 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore
May 23, 2021 19:41
28 weeks ago
3.0

119 km
45 km N of Calama, Provincia de El Loa, Antofagasta, ChileMore
May 21, 2021 01:05
28 weeks ago
2.8

108 km
36 km NE of Calama, Provincia de El Loa, Antofagasta, ChileMore

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.