Moderate mag. 5.8 earthquake - Semnan, 277 km east of Teheran, Iran, on Friday, 27 August 2010 at 19:23 (GMT)

Moderate mag. 5.8 earthquake - Semnan, 277 km east of Teheran, Iran, on Friday, 27 August 2010 at 19:23 (GMT)

Moderate magnitude 5.8 earthquake at 7 km depth

Date & time: 27 Aug 2010 19:23:49 UTC
Magnitude: 5.8
Depth: 7.0 km
Epicenter latitude / longitude: 35.49°N / 54.47°E (Semnan, Iran)
Nearest volcano: Damavand (219 km / 136 mi)
Nearby towns and cities:
76 km (47 mi) S of Dāmghān (pop: 67,700) --> See nearby quakes!
98 km (61 mi) E of Semnan (pop: 124,800) --> See nearby quakes!
104 km (65 mi) ESE of Mahdishahr (Mahdi Shahr) (pop: 21,000) --> See nearby quakes!
113 km (70 mi) SSW of Shahrud (pop: 131,900) --> See nearby quakes!
150 km (94 mi) S of Gorgan (Golestan) (pop: 244,900) --> See nearby quakes!
157 km (98 mi) SSE of Behshahr (Māzandarān) (pop: 93,500) --> See nearby quakes!
167 km (104 mi) SE of Nekā (Māzandarān) (pop: 48,800) --> See nearby quakes!
174 km (108 mi) SE of Sari (Māzandarān) (pop: 255,400) --> See nearby quakes!
277 km (172 mi) E of Teheran (Tehrān) (pop: 7,153,300) --> See nearby quakes!
407 km (253 mi) NE of Isfahan (pop: 1,547,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.2 x 1013 joules (8.78 gigawatt hours, equivalent to 7558 tons of TNT or 0.5 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 5.87 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 5.8 quake Semnan, 277 km east of Teheran, Iran, 27 August 2010 19:23 GMT

More info
Recorded aftershocks, latest first (1 quakes):
  • 28 Aug 2010 00:29 UTC
    | M 4.9 |
    6 km (3.7 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Moderate mag. 5.8 earthquake - Semnan, 277 km east of Teheran, Iran, on Friday, 27 August 2010 at 19:23 (GMT)
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