Strong mag. 6.0 earthquake - Northern Iran on Saturday, 20 January 1990 at 01:27 (GMT)

Strong mag. 6.0 earthquake - Northern Iran on Saturday, 20 January 1990 at 01:27 (GMT)

Strong magnitude 6.0 earthquake at 25 km depth

Date & time: 20 Jan 1990 01:27:09 UTC
Magnitude: 6
Depth: 24.5 km
Epicenter latitude / longitude: 35.832°N / 52.954°E (Iran)
Nearest volcano: Damavand (77 km / 48 mi)
Nearby towns and cities:
39 km (24 mi) WNW of Mahdishahr (Mahdi Shahr) (pop: 21,000) --> See nearby quakes!
49 km (30 mi) NW of Semnan (pop: 124,800) --> See nearby quakes!
81 km (50 mi) E of Damāvand (pop: 29,100) --> See nearby quakes!
82 km (51 mi) S of Sari (pop: 255,400) --> See nearby quakes!
84 km (52 mi) SSE of Babol (pop: 202,800) --> See nearby quakes!
88 km (55 mi) NE of Īstgāh-e Rāh Āhan-e Garmsār (pop: 49,500) --> See nearby quakes!
89 km (55 mi) SE of Āmol (pop: 199,400) --> See nearby quakes!
96 km (60 mi) SSW of Nekā (pop: 48,800) --> See nearby quakes!
139 km (86 mi) E of Teheran (pop: 7,153,300) --> See nearby quakes!
373 km (232 mi) NNE of Isfahan (pop: 1,547,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 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 6.025 kmnorthern 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 6.0 quake Northern Iran 20 January 1990 01:27 GMT

More info
Recorded aftershocks, latest first (2 quakes):
  • 21 Apr 1990 21:57 UTC
    | M 4.5 |
    28.5 km (17.7 mi) depth
    |
    33 km (21 mi) distance
    | USGS | Details
  • 20 Jan 1990 02:15 UTC
    | M 4.5 |
    38.6 km (24 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Strong mag. 6.0 earthquake - Northern Iran on Saturday, 20 January 1990 at 01:27 (GMT)
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