4.1

M4.1 Earthquake 203 km N of Siglufjörður, IcelandJuly 8, 2024

2024-07-08 20:58:42 UTC (2024-07-08) · approx. 7:58 PM UTC-1 local

MagnitudeM4.1(mb)
Time20:58 UTC7:58 PM UTC-1
Depth10.0 kmshallow crustal
Coordinates67.974°, -18.567°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 8, 2024 at 20:58 UTC, a magnitude 4.1 shallow crustal earthquake struck 203 km N of Siglufjörður, Iceland, at a depth of 10.0 km and coordinates 67.9737°, -18.5675°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 67.97°, -18.57°

Earthquake Details

Magnitude
4.1 mb
Depth
10.0 km
shallow crustal
Location
67.9737°N
-18.5675°E

Technical Information

Event ID
us7000mzl3
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
52
Azimuthal Gap
55.0°
Min Station Distance
3.426°
RMS Residual
0.49 sec
Last Updated
2024-09-20 16:00:56 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Siglufjörður, Iceland?

The magnitude 4.1 earthquake that struck 203 km N of Siglufjörður, Iceland on July 8, 2024 at 20:58 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 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000mzl3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, July 8, 2024). M4.1 Earthquake 203 km N of Siglufjörður, IcelandJuly 8, 2024. Retrieved September 20, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mzl3/