Minor mag. 3.5 earthquake - 81 km northeast of Calama, Provincia de El Loa, Antofagasta, Chile, on Thursday, 22 July 2021 at 03:29 (GMT) -

Minor mag. 3.5 earthquake - 81 km northeast of Calama, Provincia de El Loa, Antofagasta, Chile, on Thursday, 22 July 2021 at 03:29 (GMT)

Minor magnitude 3.5 earthquake at 127 km depth

22 Jul 03:40 UTC: First to report: EMSC after 10 minutes.
22 Jul 03:49: Magnitude recalculated from 3.5 to 4.4. Hypocenter depth recalculated from 126.0 to 139.0 km (from 78 to 86 mi). Epicenter location corrected by 5.4 km (3.4 mi) towards SW.
22 Jul 05:30: Now using data updates from GUG (U. Chile)
Update Thu, 22 Jul 2021, 03:54
Moderate magnitude 4.4 quake hits 76 km northeast of Calama, Chile late at night
4.4 quake 21 Jul 11:29 pm (GMT -4)
4.4 quake 21 Jul 11:29 pm (GMT -4)
The European-Mediterranean Seismological Centre (EMSC) reported a magnitude 4.4 quake in Chile near Calama, Provincia de El Loa, Antofagasta, only 24 minutes ago. The earthquake hit late at night on Wednesday 21 July 2021 at 11:29 pm local time at an intermediate depth of 139 km. 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, which listed it as a magnitude 4.4 earthquake as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Calama (pop. 143,100) located 76 km from the epicenter.
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.
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Earthquake data:

Date & time: 22 Jul 2021 03:29:43 UTC -
Magnitude: 3.5
Depth: 126.5 km
Epicenter latitude / longitude: 21.812°S / 68.557°W (Provincia de El Loa, Antofagasta, Chile)
Nearest volcano: San Pedro (20 km / 12 mi)
Nearby towns and cities:
81 km (50 mi) NNE of Calama (pop: 143,100) --> See nearby quakes!
128 km (79 mi) NNW of San Pedro de Atacama (pop: 2,000) --> See nearby quakes!
172 km (107 mi) E of Tocopilla (pop: 24,500) --> See nearby quakes!
243 km (151 mi) SE of Iquique (Tarapacá) (pop: 227,500) --> See nearby quakes!
278 km (173 mi) NE of Antofagasta (pop: 309,800) --> See nearby quakes!
383 km (238 mi) SW of Potosi (Potosí, Bolivia) (pop: 141,300) --> See nearby quakes!
397 km (247 mi) W of Tarija (Bolivia) (pop: 159,300) --> See nearby quakes!
413 km (257 mi) SSE of Arica (Arica y Parinacota) (pop: 186,000) --> See nearby quakes!
426 km (265 mi) NW of Jujuy (Argentina) (pop: 305,900) --> See nearby quakes!
462 km (287 mi) SW of Sucre (Chuquisaca, Bolivia) (pop: 224,800) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 1.1 x 1010 joules (3.12 megawatt hours, equivalent to 2.68 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.
3.5127 kmChile: 72 Km Al SO De OllagüeGUG (U. Chile)
4.4141 km75 Km NNE of Calama, ChileUSGS

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 yet. If you felt it be the first to report it!
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