Strong mag. 6.4 earthquake - 73 km northwest of Sabzawār, Razavi Khorasan, Iran, on Monday, 17 September 1923 at 07:09 (GMT)

Strong mag. 6.4 earthquake - 73 km northwest of Sabzawār, Razavi Khorasan, Iran, on Monday, 17 September 1923 at 07:09 (GMT)

Strong magnitude 6.4 earthquake at 15 km depth

Date & time: 17 Sep 1923 07:09:18 UTC
Magnitude: 6.4
Depth: 15.0 km
Epicenter latitude / longitude: 36.617°N / 57.046°E (Razavi Khorasan, Iran)
Nearby towns and cities:
66 km (41 mi) SW of Esfarāyen (North Khorasan) (pop: 59,700) --> See nearby quakes!
73 km (45 mi) NW of Sabzawār (pop: 226,200) --> See nearby quakes!
99 km (61 mi) SSW of Bojnourd (North Khorasan) (pop: 192,000) --> See nearby quakes!
117 km (73 mi) SW of Shīrvān (North Khorasan) (pop: 82,800) --> See nearby quakes!
141 km (88 mi) WSW of Qūchān (pop: 111,800) --> See nearby quakes!
163 km (101 mi) WNW of Neyshabur (pop: 220,900) --> See nearby quakes!
181 km (113 mi) ESE of Gonbad-e Kāvūs (Golestan) (pop: 131,400) --> See nearby quakes!
200 km (124 mi) NW of Kāshmar (pop: 96,200) --> See nearby quakes!
232 km (144 mi) W of Mashhad (pop: 2,307,200) --> See nearby quakes!
515 km (320 mi) ENE of Teheran (Tehrān) (pop: 7,153,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 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 6.415 kmnortheastern 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 6.4 quake 73 km northwest of Sabzawār, Razavi Khorasan, Iran, 17 September 1923 07:09 GMT

More info
Recorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.
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Earlier earthquakes in the same area

Strong mag. 6.4 earthquake - 73 km northwest of Sabzawār, Razavi Khorasan, Iran, on Monday, 17 September 1923 at 07:09 (GMT)
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