4.0

M4.0 Earthquake 24 km WSW of Bojnūrd, IranSeptember 10, 2024

2024-09-10 22:16:15 UTC (2024-09-10) · approx. 2:16 AM UTC+4 local

MagnitudeM4.0(mb)
Time22:16 UTC2:16 AM UTC+4
Depth10.0 kmshallow crustal
Coordinates37.426°, 57.054°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 10, 2024 at 22:16 UTC, a magnitude 4.0 shallow crustal earthquake struck 24 km WSW of Bojnūrd, Iran, at a depth of 10.0 km and coordinates 37.4258°, 57.0543°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 37.43°, 57.05°

Earthquake Details

Magnitude
4.0 mb
Depth
10.0 km
shallow crustal
Location
37.4258°N
57.0543°E

Technical Information

Event ID
us7000ncym
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
34
Azimuthal Gap
197.0°
Min Station Distance
0.982°
RMS Residual
0.97 sec
Last Updated
2024-11-21 22:58:55 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Bojnūrd, Iran?

The magnitude 4.0 earthquake that struck 24 km WSW of Bojnūrd, Iran on September 10, 2024 at 22:16 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000ncym). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, September 10, 2024). M4.0 Earthquake 24 km WSW of Bojnūrd, IranSeptember 10, 2024. Retrieved November 21, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000ncym/