According to the United States Geological Survey (USGS), the quake struck at approximately 03:36 UTC (just before 6 a.m. local time) on May 19.
The European-Mediterranean Seismological Centre (EMSC) reported that the epicentre was located about 9 kilometers from the town of Lubin and 31 kilometers north of Legnica, in the Lower Silesia region - a historically significant area for mining operations.
The tremor was not caused by natural seismic activity, but by industrial operations in the region.
Artur Newecki, a spokesperson for the mining company KGHM Polska Miedź S.A., told TVN Meteo that the event was detected by the Lubin Mining Division and classified as a “level seven” on the mining industry’s internal scale, indicating a strong mining-induced tremor.
No miners were underground at the time, and the event was linked to pre-planned underground work such as rock crushing and construction activities. There were no reports of injuries or damage.
(m p)
Source: USGS/EMSC/TVN Meteo/X/@LastQuake