Strong mag. 6.9 earthquake - Jujuy, Argentina, on Sunday, 21 February 1971 at 10:35 (GMT)

Strong mag. 6.9 earthquake - Jujuy, Argentina, on Sunday, 21 February 1971 at 10:35 (GMT)

Strong magnitude 6.9 earthquake at 184 km depth

Date & time: 21 Feb 1971 10:35:22 UTC
Magnitude: 6.9
Depth: 183.7 km
Epicenter latitude / longitude: 23.804°S / 67.151°W (Argentina)
Nearest volcano: Laco (36 km / 22 mi)
Nearby towns and cities:
1472 km (915 mi) NW of Buenos Aires (pop: 13,076,300) --> 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.
MagnitudeDepthLocationSource
M 6.9184 kmJujuy, ArgentinaUSGS
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 of the 6.9 quake Jujuy, Argentina, 21 February 1971 10:35 GMT

More info
Recorded aftershocks, latest first (1 quakes):
  • 29 Jun 1971 06:01 UTC
    | M 5.6 |
    80 km (49.7 mi) depth
    |
    161 km (100 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Strong mag. 6.9 earthquake - Jujuy, Argentina, on Sunday, 21 February 1971 at 10:35 (GMT)
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