Minor mag. 3.4 earthquake - 96 km north of Calama, Provincia de El Loa, Antofagasta, Chile, on Thursday, Oct 21, 2021 at 11:17 am (GMT -3) -
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Minor magnitude 3.4 earthquake at 120 km depth
21 Oct 14:30 UTC: First to report: EMSC after 13 minutes.
Local time at epicenter: Thursday, Oct 21, 2021 at 11:17 am (GMT -3)
Magnitude: 3.4
Depth: 120.0 km
Epicenter latitude / longitude: 21.61°S / 68.76°W

Antipode: 21.61°N / 111.24°E
Nearest volcano: San Pedro (48 km / 30 mi)
Nearby towns and cities:
96 km (59 mi) N of Calama (pop: 143,100) --> See nearby quakes!
156 km (97 mi) NNW of San Pedro de Atacama (pop: 2,000) --> See nearby quakes!
158 km (98 mi) ENE of Tocopilla (pop: 24,500) --> See nearby quakes!
212 km (132 mi) SE of Iquique (Tarapacá) (pop: 227,500) --> See nearby quakes!
282 km (176 mi) NE of Antofagasta (pop: 309,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
14°C (57 F), humidity: 3%, wind: 5 m/s (10 kts) from W
Primary data source: EMSC (European-Mediterranean Seismological Centre)
Clear Sky

Estimated released energy: 7.9 x 109 joules (2.21 megawatt hours, equivalent to 1.9 tons of TNT) | about seismic energy
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. | Depth | Location | Source |
3.4 | 120 km | ANTOFAGASTA, CHILE | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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