4.3

M4.3 Earthquake in the Iceland regionMay 26, 2025

2025-05-26 16:05:54 UTC (2025-05-26) · approx. 3:05 PM UTC-1 local

MagnitudeM4.3(mb)
Time16:05 UTC3:05 PM UTC-1
Depth10.0 kmshallow crustal
Coordinates68.935°, -17.262°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 26, 2025 at 16:05 UTC, a magnitude 4.3 shallow crustal earthquake struck in the Iceland region, at a depth of 10.0 km and coordinates 68.9350°, -17.2625°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 68.94°, -17.26°

Earthquake Details

Magnitude
4.3 mb
Depth
10.0 km
shallow crustal
Location
68.9350°N
-17.2625°E

Technical Information

Event ID
us7000q1l3
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
97
Azimuthal Gap
47.0°
Min Station Distance
2.257°
RMS Residual
0.61 sec
Last Updated
2025-08-13 15:14:33 UTC

Common Questions

How strong was the magnitude 4.3 earthquake in the Iceland region?

The magnitude 4.3 earthquake that struck in the Iceland region on May 26, 2025 at 16:05 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000q1l3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, May 26, 2025). M4.3 Earthquake in the Iceland regionMay 26, 2025. Retrieved August 13, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000q1l3/