Major magnitude 8.5 earthquake - Provincia de Copiapo, 94 km east of Vallenar, Huasco, Atacama, Chile, on Saturday, November 11, 1922 at 04:32 GMT
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Major magnitude 8.5 earthquake at 70 km depth
Magnitude: 8.5
Depth: 70.0 km
Epicenter latitude / longitude: 28.293°S / 69.852°W

Antipode: 28.293°N / 110.148°E
Nearest volcano: Incapillo (112 km / 70 mi)
Nearby towns and cities:
94 km (59 mi) ENE of Vallenar (pop: 44,900) --> See nearby quakes!
113 km (70 mi) SSE of Copiapo (pop: 129,300) --> See nearby quakes!
215 km (134 mi) S of Diego de Almagro (pop: 18,100) --> See nearby quakes!
225 km (140 mi) NE of La Serena (Coquimbo) (pop: 154,500) --> See nearby quakes!
234 km (146 mi) NE of Coquimbo (pop: 161,300) --> See nearby quakes!
249 km (155 mi) WNW of Chilecito (La Rioja, Argentina) (pop: 42,200) --> See nearby quakes!
288 km (179 mi) NNE of Ovalle (Coquimbo) (pop: 77,100) --> See nearby quakes!
318 km (197 mi) WNW of Rioja (La Rioja, Argentina) (pop: 162,600) --> See nearby quakes!
579 km (360 mi) N of Santiago de Chile (Metropolitana) (pop: 4,837,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1017 joules (98559 gigawatt hours, equivalent to 8.5 x 107 tons of TNT or 5300.2 atomic bombs!) | 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 |
8.5 | 70 km | Atacama, Chile | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
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Recorded aftershocks, latest first (5 quakes)
Date and time![]() | Mag Depth | Location | Details |
May 15, 1925 11:57 97 years ago | 6.4 30 km | 18 km S of Taltal, Provincia de Antofagasta, Chile | More |
Jan 29, 1924 01:54 98 years ago | 6.7 45 km | 39 km N of Vallenar, Huasco, Atacama, Chile | More |
May 4, 1923 22:26 99 years ago | 6.5 35 km | 68 km SW of Vallenar, Huasco, Atacama, Chile | More |
Nov 17, 1922 11:02 100 years ago | 6.7 15 km | 118 km W of Coquimbo, Provincia de Elqui, Coquimbo Region, Chile | More |
Nov 11, 1922 18:09 100 years ago | 6.6 35 km | 27 km NE of Vallenar, Huasco, Atacama, Chile | More |
Earlier earthquakes in the same area
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