Ancient Polish Fault Unearthed, Rewriting Poland's Seismic Risk
Scientists studying Brzegi in southern Poland have identified an ancient seismic scar that reveals a previously unknown buried fault. Using airborne LiDAR, geophysical surveys, and paleoseismic trenching, researchers linked the visible fault scar to a deeper break that formed 10,000–50,000 years ago, suggesting the region’s earthquake history extends far beyond modern records and signaling a potential for rare, higher-magnitude quakes. The findings could lead to updated hazard assessments and mapping for the area.