QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem911644
USGS iscgem911644
17 Sept 1923, 07:09
32 km WSW of Esfar?yen, Iran
A magnitude 6.4 mw earthquake at 15 km depth.
Published location
Where is 32 km WSW of Esfar?yen, Iran?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
36.946000, 57.181000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
iscgem911644
Coordinates
36.946, 57.181
Network
iscgem
Significance
636