Light mag. 4.7 earthquake - 38 km northeast of Calama, El Loa, Antofagasta, Chile, on Tuesday, July 21, 2020 at 18:01 GMT
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Light magnitude 4.7 earthquake at 142 km depth
21 Jul 18:06 UTC: First to report: GFZ after 4 minutes.
Jul 21 18:08: Magnitude recalculated from 5.0 to 4.9.
Hypocenter depth recalculated from 150.0 to 142.0 km.
Jul 22 14:34: Magnitude recalculated from 4.9 to 4.7.
Jul 21 18:08: Magnitude recalculated from 5.0 to 4.9.
Hypocenter depth recalculated from 150.0 to 142.0 km.
Jul 22 14:34: Magnitude recalculated from 4.9 to 4.7.
Magnitude: 4.7
Depth: 142.0 km
Epicenter latitude / longitude: 22.25°S / 68.63°W
(Provincia de El Loa, Antofagasta, Chile)Antipode: 22.25°N / 111.37°E
Nearest volcano: San Pedro (47 km / 29 mi)
Nearby towns and cities:
38 km (24 mi) NE of Calama (pop: 143,100) --> See nearby quakes!
86 km (53 mi) NNW of San Pedro de Atacama (pop: 2,000) --> See nearby quakes!
162 km (101 mi) E of Tocopilla (pop: 24,500) --> See nearby quakes!
239 km (148 mi) NE of Antofagasta (pop: 309,800) --> See nearby quakes!
276 km (171 mi) SE of Iquique (Tarapacá) (pop: 227,500) --> See nearby quakes!
313 km (195 mi) W of Villazon (Modesto Omiste, Potosí, Bolivia) (pop: 30,300) --> See nearby quakes!
404 km (251 mi) WNW of Jujuy (Argentina) (pop: 305,900) --> See nearby quakes!
421 km (262 mi) SW of Ciudad Potosi (Potosí, Bolivia) (pop: 141,300) --> See nearby quakes!
433 km (269 mi) NW of Salta (Argentina) (pop: 512,700) --> See nearby quakes!
501 km (311 mi) SW of Sucre (Chuquisaca, Bolivia) (pop: 224,800) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 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 |
| 4.7 | 142 km | Northern Chile | GFZ |
| 4.9 | 126 km | Antofagasta, Chile | EMSC |
| 4.7 | 120 km | 49 km al NE de Calama (Chile) | GUG (U. Chile) |
| 4.9 | 125 km | 44 km NE of Calama, Chile | USGS |
| 5.2 | 140 km | Chile-Bolivia Border Region | USP |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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