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Calama / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Puro ruido pero nada de accion | One user found this interesting.
Light mag. 4.4 earthquake - 44 km northwest of Calama, Provincia de El Loa, Antofagasta, Chile, on Friday, Oct 22, 2021 at 8:14 am (GMT -3) -
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Light magnitude 4.4 earthquake at 109 km depth
22 Oct 11:19 UTC: First to report: EMSC after 5 minutes.
22 Oct 11:33: Magnitude recalculated from 4.3 to 4.4. Hypocenter depth recalculated from 80.0 to 109.0 km (from 50 to 68 mi). Epicenter location corrected by 8.5 km (5.3 mi) towards WNW.
22 Oct 11:33: Magnitude recalculated from 4.3 to 4.4. Hypocenter depth recalculated from 80.0 to 109.0 km (from 50 to 68 mi). Epicenter location corrected by 8.5 km (5.3 mi) towards WNW.
Update Fri, 22 Oct 2021, 11:24
Moderate magnitude 4.3 earthquake 37 km northwest of Calama, Chile4.3 quake 22 Oct 8:14 am (GMT -3)
An intermediate magnitude 4.3 earthquake was reported in the morning near Calama, Provincia de El Loa, Antofagasta, Chile.
According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Friday, October 22nd, 2021, at 8:14 am local time at an intermediate depth of 80 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.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Calama (pop. 143,100) located 37 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.
According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Friday, October 22nd, 2021, at 8:14 am local time at an intermediate depth of 80 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.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Calama (pop. 143,100) located 37 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.
Earthquake data
Local time at epicenter: Friday, Oct 22, 2021 at 8:14 am (GMT -3)
Magnitude: 4.4
Depth: 109.0 km
Epicenter latitude / longitude: 22.15°S / 69.19°W
(Provincia de El Loa, Antofagasta, Chile)Antipode: 22.15°N / 110.81°E
Nearest volcano: San Pedro (80 km / 50 mi)
Nearby towns and cities:
44 km (27 mi) NW of Calama (pop: 143,100) --> See nearby quakes!
104 km (65 mi) E of Tocopilla (pop: 24,500) --> See nearby quakes!
132 km (82 mi) NW of San Pedro de Atacama (pop: 2,000) --> See nearby quakes!
208 km (129 mi) NE of Antofagasta (pop: 309,800) --> See nearby quakes!
236 km (147 mi) WSW of San Cristobal de Lipez (Potosí, Bolivia) (pop: 75) --> See nearby quakes!
237 km (147 mi) SSE of Iquique (Tarapacá) (pop: 227,500) --> See nearby quakes!
309 km (192 mi) SW of Uyuni (Antonio Quijarro, Potosí, Bolivia) (pop: 10,300) --> See nearby quakes!
312 km (194 mi) SW of Colchani (Potosí, Bolivia) (pop: 12,000) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
13.7°C (57 F), humidity: 12%, wind: 1 m/s (1 kts) from ENE
Primary data source: EMSC (European-Mediterranean Seismological Centre)
Clear Sky
13.7°C (57 F), humidity: 12%, wind: 1 m/s (1 kts) from ENEEstimated released energy: 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 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 |
| 4.4 | 109 km | ANTOFAGASTA, CHILE | EMSC |
| 4.4 | 109 km | 43 Km NW of Calama, Chile | USGS |
| 4.3 | 115 km | Northern Chile | GFZ |
User reports for this quake (1)
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