While earthquakes in Pennsylvania are rare, they’re not unheard of — the strongest on record was a 5.8 magnitude quake near Pymatuning Lake in 1998, the Pennsylvania Department of Conservation ...

PHILADELPHIA — Buildings shook from Philadelphia to Pittsburgh and points north Tuesday as a 5.8 magnitude earthquake centered in Virginia rolled across Pennsylvania, causing little damage but ...

Researchers have developed a laboratory earthquake model that connects the microscopic real contact area between fault surfaces to the possibility of earthquake occurrences. Published in the ...