M4.9 Earthquake 6 km S of Grębocice, Poland — July 11, 2026
2026-07-11 06:11:59 UTC (1 hour ago) · approx. 7:11 AM UTC+1 local
Felt by 6 people across nearby locations.
On July 11, 2026 at 06:11 UTC, a magnitude 4.9 shallow crustal earthquake struck 6 km S of Grębocice, Poland, at a depth of 10.0 km and coordinates 51.5376°, 16.1635°. This earthquake was detected by 89 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 372, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 6 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
16.1635°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Grębocice, Poland?
The magnitude 4.9 earthquake that struck 6 km S of Grębocice, Poland on July 11, 2026 at 06:11 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 51.5376°, 16.1635°, which is 6 km S of Grębocice, Poland.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks.
Authoritative source: USGS event page (event ID: us7000szn3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 11, 2026). M4.9 Earthquake 6 km S of Grębocice, Poland — July 11, 2026. Retrieved July 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000szn3/