Submitted by Anonymous (not verified) on Fri, 04/05/2024 - 18:56 It's igneous rocks and metamorphic rocks, granites and things like that, they transmit energy very efficiently.” Pa. quake locations, aftershocks. External URL https://www.google.com/url?rct=j&sa=t&url=https://www.lehighvalleynews.com/envi… Log in or register to post comments