When the Sendai quake and tsunami hit last March, many Japanese residents took refuge in “vertical evacuation structures,” reinforced concrete buildings that were strong enough — and tall enough — to ...

ASTORIA, Ore. — Residents of this small coastal city in the Pacific Northwest know what to do when there’s a tsunami warning: Flee to higher ground. For those in or near Columbia Memorial, the city’s ...

Thorsen said an earthquake and tsunami threaten not only vast flooding but also liquefaction, in which the ground loosens and causes structures above it to collapse. Deep foundations, thick slabs, and ...