The Birch glacier in Switzerland's southern Valais (Wallis) region collapsed on Wednesday, sending a mass of rock, ice and scree hurtling down the mountain slope and into the valley below. The barrage ...

A half-billion cubic meters of fractured rock above Alaska’s Barry Arm fjord is sending out strange seismic signals, a kind of subterranean heartbeat beneath a slope that could, in the worst case, ...

Rock slope stability is a critical area of geotechnical engineering, addressing the failure mechanisms that result in the toppling of rock blocks within stratified masses. Toppling failure commonly ...

UNIVERSITY PARK, Pa. — For people living near volcanoes, danger goes well beyond lava flows and clouds of ash. Some explosive eruptions can lead to dramatic collapses of the sides of a volcano, like ...

Swiss authorities said Thursday that rock and ice piles from a collapsed glacier that destroyed a village were preventing emergency services from working, but that they were cautiously optimistic no ...