M4.0 Earthquake 1 km SSW of Polkowice, Poland — July 18, 2026
2026-07-18 05:17:02 UTC (2026-07-18) · approx. 6:17 AM UTC+1 local
On July 18, 2026 at 05:17 UTC, a magnitude 4.0 shallow crustal earthquake struck 1 km SSW of Polkowice, Poland, at a depth of 10.0 km and coordinates 51.4946°, 16.0696°.
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.
Earthquake Details
16.0696°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Polkowice, Poland?
The magnitude 4.0 earthquake that struck 1 km SSW of Polkowice, Poland on July 18, 2026 at 05:17 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.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000t1jl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 18, 2026). M4.0 Earthquake 1 km SSW of Polkowice, Poland — July 18, 2026. Retrieved August 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t1jl/