M4.3 Earthquake in the Iceland region — September 27, 2026
2026-09-27 10:57:07 UTC (1 hour ago) · approx. 9:57 AM UTC-1 local
On September 27, 2026 at 10:57 UTC, a magnitude 4.3 shallow crustal earthquake struck in the Iceland region, at a depth of 10.0 km and coordinates 68.9242°, -17.2234°.
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.
Earthquake Details
-17.2234°E
Technical Information
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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 September 27, 2026 at 10:57 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.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000txyf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 27, 2026). M4.3 Earthquake in the Iceland region — September 27, 2026. Retrieved September 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000txyf/