M6.4 earthquake 132 km SSE of Semnan, Iran
A magnitude 6.4 earthquake struck 132 km SSE of Semnan, Iran on Fri, Jul 22, 1927, 7:20 AM GMT+3:25:44 (03:55 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.4 (Mw, moment), strong
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1927-07-22 03:55:13 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 34.483° N, 53.986° E
- Region
- Iran
- Strongest shaking
- VIII, severe shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VIII, severe shaking
- Peak ground acceleration
- 31.2% of gravity
- Peak ground velocity
- 3.6 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.44
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.4 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.7173 km SSE of Semnan, Iran · 36233 days ago · 15 km deep · 43 km away
- 5.7186 km N of Ardak?n, Iran · 36233 days ago · 15 km deep · 66 km away
- 5.9151 km SSE of Semnan, Iran · 36232 days ago · 15 km deep · 30 km away
- 6.0145 km S of Semnan, Iran · 36232 days ago · 15 km deep · 38 km away
- 5.4157 km SE of Semnan, Iran · 36226 days ago · 15 km deep · 66 km away
Earthquakes todayIran earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem909393. Read Sat, Oct 3, 2026, 7:50 PM UTC.