Major magnitude. 7.1 earthquake - Eastern Iran on Tuesday, 28 July 1981 at 17:22 (GMT)

Major magnitude. 7.1 earthquake - Eastern Iran on Tuesday, 28 July 1981 at 17:22 (GMT)

Major magnitude 7.1 earthquake at 33 km depth

Date & time: 28 Jul 1981 17:22:24 UTC
Magnitude: 7.1
Depth: 33.0 km
Epicenter latitude / longitude: 30.013°N / 57.794°E (Iran)
Nearest volcano: Qal'eh Hasan Ali (72 km / 45 mi)
Nearby towns and cities:
75 km (47 mi) ESE of Kerman (pop: 577,500) --> See nearby quakes!
115 km (71 mi) NNW of Bam (pop: 99,300) --> See nearby quakes!
118 km (73 mi) E of Bardsīr (Bardsir) (pop: 37,200) --> See nearby quakes!
148 km (92 mi) SE of Zarand (pop: 59,000) --> See nearby quakes!
168 km (105 mi) SE of Rāvar (pop: 40,200) --> See nearby quakes!
178 km (111 mi) ESE of Rafsanjān (pop: 147,700) --> See nearby quakes!
213 km (133 mi) ENE of Sīrjān (pop: 207,600) --> See nearby quakes!
258 km (160 mi) E of Shahr-e Bābak (pop: 52,400) --> See nearby quakes!
302 km (188 mi) W of Zahedan (pop: 552,000) --> See nearby quakes!
868 km (539 mi) SE of Teheran (pop: 7,153,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1015 joules (783 gigawatt hours, equivalent to 6.7 x 105 tons of TNT or 42.1 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 7.133 kmeastern IranUSGS
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 7.1 quake Eastern Iran 28 July 1981 17:22 GMT

More info
Recorded aftershocks, latest first (58 quakes):
  • 01 May 1983 23:06 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    41 km (25 mi) distance
    | USGS | Details
  • 19 Apr 1983 00:02 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    130 km (81 mi) distance
    | USGS | Details
  • 28 Feb 1983 01:37 UTC
    | M 4.2 |
    34.9 km (21.7 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details
  • 31 Jan 1983 18:56 UTC
    | M 5.1 |
    101 km (62.8 mi) depth
    |
    134 km (83 mi) distance
    | USGS | Details
  • 25 Dec 1982 04:30 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 19 Dec 1982 19:40 UTC
    | M 5.9 |
    39.5 km (24.5 mi) depth
    |
    68 km (42 mi) distance
    | USGS | Details
  • 08 Dec 1982 19:34 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    70 km (44 mi) distance
    | USGS | Details
  • 27 Jul 1982 18:50 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    41 km (25 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    6953 km (4321 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    6953 km (4321 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    6953 km (4321 mi) distance
    | | Details
  • 17 Jul 1982 08:08 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    46 km (29 mi) distance
    | USGS | Details
  • 14 Jun 1982 15:33 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    6953 km (4321 mi) distance
    | | Details
  • 25 Feb 1982 23:51 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    25 km (15 mi) distance
    | USGS | Details
  • 25 Feb 1982 23:30 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
    • Show all

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Earlier earthquakes in the same area

Major magnitude. 7.1 earthquake - Eastern Iran on Tuesday, 28 July 1981 at 17:22 (GMT)
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