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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

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 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

Major magnitude 8.5 earthquake at 70 km depth

Earthquake details

Date & timeNov 11, 1922 04:32:51 UTC
Local time at epicenter
StatusConfirmed
Magnitude8.5
Depth70.0 km
Epicenter latitude / longitude28.293°S / 69.852°W (Provincia de Copiapo, Atacama, Chile)
Antipode28.293°N / 110.148°E
Shaking intensitySevere shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoIncapillo (112 km / 70 mi)
Nearby towns and cities94 km (59 mi) ENE of Vallenar (pop: 44,900) | Show on map | Quakes nearby
113 km (70 mi) SSE of Copiapo (pop: 129,300) | Show on map | Quakes nearby
215 km (134 mi) S of Diego de Almagro (pop: 18,100) | Show on map | Quakes nearby
225 km (140 mi) NE of La Serena (Coquimbo) (pop: 154,500) | Show on map | Quakes nearby
234 km (146 mi) NE of Coquimbo (pop: 161,300) | Show on map | Quakes nearby
249 km (155 mi) WNW of Chilecito (La Rioja, Argentina) (pop: 42,200) | Show on map | Quakes nearby
288 km (179 mi) NNE of Ovalle (Coquimbo) (pop: 77,100) | Show on map | Quakes nearby
318 km (197 mi) WNW of Rioja (La Rioja, Argentina) (pop: 162,600) | Show on map | Quakes nearby
579 km (360 mi) N of Santiago de Chile (Metropolitana) (pop: 4,837,300) | Show on map | Quakes nearby
Estimated seismic energy released3.5 x 1017 joules (98559 gigawatt hours, equivalent to 8.5 x 107 tons of TNT or 5300.2 atomic bombs!) | about seismic energy
Show interactive Map
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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.
Mag.DepthLocationSource
8.570 kmAtacama, ChileUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

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.

Aftershocks

[More info]

Recorded aftershocks, latest first (5 quakes)

Date and timeMag
Depth
LocationDetails
May 15, 1925 11:57
98 years ago
6.4

30 km
18 km S of Taltal, Provincia de Antofagasta, ChileMore
Jan 29, 1924 01:54
99 years ago
6.7

45 km
39 km N of Vallenar, Huasco, Atacama, ChileMore
May 4, 1923 22:26
100 years ago
6.5

35 km
68 km SW of Vallenar, Huasco, Atacama, ChileMore
Nov 17, 1922 11:02
101 years ago
6.7

15 km
118 km W of Coquimbo, Provincia de Elqui, Coquimbo Region, ChileMore
Nov 11, 1922 18:09
101 years ago
6.6

35 km
27 km NE of Vallenar, Huasco, Atacama, ChileMore

Earlier earthquakes in the same area

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