Moderate mag. 5.7 earthquake - Northern Algeria on Sunday, 1 February 1981 at 13:19 (GMT)

Moderate mag. 5.7 earthquake - Northern Algeria on Sunday, 1 February 1981 at 13:19 (GMT)

Moderate magnitude 5.7 earthquake at 10 km depth

Date & time: 1 Feb 1981 13:19:59 UTC
Magnitude: 5.7
Depth: 10.0 km
Epicenter latitude / longitude: 36.443°N / 1.655°E (Algeria)
Nearby towns and cities:
19 km (12 mi) N of El Abadia (pop: 28,700) --> See nearby quakes!
24 km (15 mi) N of El Attaf (pop: 43,800) --> See nearby quakes!
31 km (19 mi) NNE of Oued Fodda (pop: 44,500) --> See nearby quakes!
32 km (20 mi) E of Sidi Akkacha (Tenes) (pop: 26,600) --> See nearby quakes!
34 km (21 mi) NW of Aïn Defla (pop: 52,300) --> See nearby quakes!
41 km (26 mi) E of Abou el Hassan (pop: 24,000) --> See nearby quakes!
42 km (26 mi) NE of ash-Shalif (pop: 178,600) --> See nearby quakes!
45 km (28 mi) NE of Ech Chettia (pop: 168,000) --> See nearby quakes!
132 km (82 mi) WSW of Algiers (pop: 1,977,700) --> See nearby quakes!
167 km (104 mi) WSW of Boumerdas (pop: 786,500) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.2 x 1013 joules (6.22 gigawatt hours, equivalent to 5351 tons of TNT or 0.3 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 5.710 kmnorthern AlgeriaUSGS
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 5.7 quake Northern Algeria 1 February 1981 13:19 GMT

More info
Recorded aftershocks, latest first (5 quakes):
  • 29 Mar 1981 14:14 UTC
    | M 4.0 |
    10 km (6.2 mi) depth
    |
    30 km (18 mi) distance
    | USGS | Details
  • 05 Feb 1981 09:12 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    19 km (12 mi) distance
    | USGS | Details
  • 02 Feb 1981 19:02 UTC
    | M 4.3 |
    10 km (6.2 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 01 Feb 1981 23:00 UTC
    | M 4.9 |
    10 km (6.2 mi) depth
    |
    2 km (1 mi) distance
    | USGS | Details
  • 01 Feb 1981 20:58 UTC
    | M 4.1 |
    10 km (6.2 mi) depth
    |
    12 km (7 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Moderate mag. 5.7 earthquake - Northern Algeria on Sunday, 1 February 1981 at 13:19 (GMT)
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