Live earthquake check
Earthquakes near Semnan today
Updated
No M2.5+ earthquake within 100 km of Semnan in the last 24 hours None in the past 30 days either.
Was there an earthquake in Semnan just now? This page checks the live USGS catalogue for quakes around Semnan, Iran and updates every few minutes.
- Last 24 hours
- 0 M2.5+ within 100 km
- Last 7 days
- 0 M2.5+ within 100 km
- Last 30 days
- 0 M2.5+ within 100 km
- Largest in 30 days
- — none within 100 km
- Largest in past year
- M4.6 90 km NNE, Jul 31, 2026
- Past year count
- 5 M2.5+ within 150 km
- Nearest in 30 days
- —
Recent earthquakes near Semnan
No earthquake of magnitude 2.5 or more was located within 100 km of Semnan in the past 30 days.
M2.5+ within 150 km, past 30 days, newest first. Times in Asia/Tehran.
Largest earthquakes near Semnan in the past year
The strongest earthquake within 150 km of Semnan in the past 12 months was M4.6 on Jul 31, 2026, 90 km NNE of the city (39 km WNW of Dāmghān, Iran).
With 5 M2.5+ earthquakes in a year (about 0.4 a month), the area around Semnan is moderately active by global standards. 1 of the ten largest reached M4.5, the level at which damage near the epicentre becomes possible.
| Date | Magnitude | Distance | Depth | Location |
|---|---|---|---|---|
| Jul 31, 2026 | M4.6 | 90 km NNE | 10 km | 39 km WNW of Dāmghān, Iran |
| May 16, 2026 | M4.4 | 139 km NNE | 10 km | 25 km ENE of Behshahr, Iran |
| May 12, 2026 | M4.3 | 134 km W | 10 km | 13 km W of Damāvand, Iran |
| Feb 20, 2026 | M4.0 | 146 km N | 10 km | 29 km NNE of Jūybār, Iran |
| Nov 28, 2025 | M4.0 | 102 km N | 10 km | 18 km S of Nekā, Iran |
Was it felt in Semnan?
None of the quakes listed has "Did You Feel It?" reports in the USGS feed, which usually means shaking at the surface was weak or the area has few reporters.
If you felt shaking, you can report it to USGS; reports refine the intensity map within minutes.
Tsunami warning status
None of the earthquakes near Semnan in the past year carried the USGS tsunami flag, which USGS sets for large quakes in oceanic regions where the tsunami warning centres issue messages.
Official tsunami warnings come from the NOAA tsunami warning centres (tsunami.gov) and national agencies; follow local authorities if you are on a coast after strong shaking.
Earthquakes around the world today
Worldwide, USGS listed 145 earthquakes of M1+ in the last 24 hours; the largest was M6.5 Bonin Islands, Japan region.
USGS lists every magnitude in the United States but outside it coverage is complete only from about M4–4.5, so smaller local quakes reported by national agencies may be missing. Magnitudes and locations are revised for hours after an event.
Earthquakes near other cities in Iran and nearby
Earthquake pages
More live data for Semnan
Data: USGS Earthquake Hazards Program (ComCat), GeoNames (cities, CC BY 4.0).