Strong mag. 6.9 earthquake - Provincia de Parinacota, 94 km east of Arica, Arica y Parinacota, Chile, on Friday, February 25, 1983 at 22:49 (GMT)

Strong mag. 6.9 earthquake - Provincia de Parinacota, 94 km east of Arica, Arica y Parinacota, Chile, on Friday, February 25, 1983 at 22:49 (GMT)

Strong magnitude 6.9 earthquake at 146 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Feb 25, 1983 22:49:54 UTC
Magnitude: 6.9
Depth: 146.0 km
Epicenter latitude / longitude: 18.268°S / 69.438°W (Provincia de Parinacota, Arica y Parinacota, Chile)
Antipode: 18.268°N / 110.562°E
Nearest volcano: Vilacollo (14 km / 9 mi)
Nearby towns and cities:
91 km (56 mi) ESE of Tacna (Peru) (pop: 280,100) --> See nearby quakes!
94 km (58 mi) ENE of Arica (pop: 186,000) --> See nearby quakes!
196 km (122 mi) SE of San Antonio (Moquegua, Peru) (pop: 15,600) --> See nearby quakes!
198 km (123 mi) SE of Moquegua (Peru) (pop: 54,500) --> See nearby quakes!
213 km (133 mi) ESE of Ilo (Moquegua, Peru) (pop: 53,500) --> See nearby quakes!
229 km (142 mi) NNE of Iquique (Tarapacá) (pop: 227,500) --> See nearby quakes!
239 km (149 mi) SW of La Paz (Bolivia) (pop: 812,800) --> See nearby quakes!
244 km (152 mi) W of Oruro (Bolivia) (pop: 208,700) --> See nearby quakes!
277 km (172 mi) SSE of Puno (Peru) (pop: 116,600) --> See nearby quakes!
305 km (189 mi) SE of Arequipa (Peru) (pop: 841,100) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 atomic bombs!) More info
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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
6.9146 kmTarapaca, 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 yet. If you felt it be the first to report it!
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Aftershocks

More info

Recorded aftershocks, latest first (7 quakes)

  • 22 Aug 1983 08:50 UTC
    | M 4.1 |
    90.3 km (56.1 mi) depth
    |
    99 km (61 mi) distance
    | USGS | Details
  • 22 Jul 1983 12:51 UTC
    | M 4.7 |
    134.1 km (83.3 mi) depth
    |
    116 km (72 mi) distance
    | USGS | Details
  • 26 Jun 1983 05:39 UTC
    | M 4.8 |
    137.3 km (85.3 mi) depth
    |
    77 km (48 mi) distance
    | USGS | Details
  • 03 Jun 1983 04:49 UTC
    | M 4.8 |
    132.6 km (82.4 mi) depth
    |
    28 km (17 mi) distance
    | USGS | Details
  • 23 May 1983 00:54 UTC
    | M 5.5 |
    110 km (68.4 mi) depth
    |
    94 km (58 mi) distance
    | USGS | Details
  • 06 May 1983 11:50 UTC
    | M 4.9 |
    102.3 km (63.6 mi) depth
    |
    59 km (37 mi) distance
    | USGS | Details
  • 20 Apr 1983 02:45 UTC
    | M 4.8 |
    121 km (75.2 mi) depth
    |
    97 km (60 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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