M4.3 Earthquake 11 km NNW of Ilgaz, Turkey — August 21, 2026
2026-08-21 02:06:18 UTC (1 hour ago) · approx. 4:06 AM UTC+2 local
On August 21, 2026 at 02:06 UTC, a magnitude 4.3 shallow crustal earthquake struck 11 km NNW of Ilgaz, Turkey, at a depth of 10.0 km and coordinates 41.0198°, 33.5713°.
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
33.5713°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Ilgaz, Turkey?
The magnitude 4.3 earthquake that struck 11 km NNW of Ilgaz, Turkey on August 21, 2026 at 02:06 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: us6000tmct). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 21, 2026). M4.3 Earthquake 11 km NNW of Ilgaz, Turkey — August 21, 2026. Retrieved August 21, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmct/