4.3

M4.3 Earthquake 4 km NNW of Rudna, PolandAugust 13, 2025

2025-08-13 21:30:06 UTC (2025-08-13) · approx. 10:30 PM UTC+1 local

MagnitudeM4.3(mb)
Time21:30 UTC10:30 PM UTC+1
Depth5.0 kmshallow crustal
Coordinates51.547°, 16.235°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 13, 2025 at 21:30 UTC, a magnitude 4.3 shallow crustal earthquake struck 4 km NNW of Rudna, Poland, at a depth of 5.0 km and coordinates 51.5465°, 16.2354°.0

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 51.55°, 16.24°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from submitted citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.3 earthquake near 4 km NNW of Rudna, Poland

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.3 mb
Depth
5.0 km
shallow crustal
Location
51.5465°N
16.2354°E
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us6000r0fs
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
54
Azimuthal Gap
43.0°
Min Station Distance
1.199°
RMS Residual
0.81 sec
Last Updated
2025-11-04 16:43:34 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Rudna, Poland?

The magnitude 4.3 earthquake that struck 4 km NNW of Rudna, Poland on August 13, 2025 at 21:30 UTC had a depth of 5.0 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: us6000r0fs). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, August 13, 2025). M4.3 Earthquake 4 km NNW of Rudna, PolandAugust 13, 2025. Retrieved November 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000r0fs/