What causes a tsunami, and how could a powerful earthquake like the one off Russia’s coast trigger massive waves? A tsunami is a series of ocean waves caused by a sudden disturbance, usually an ...

SALT LAKE CITY (ABC4) — While Utah is landlocked and deals more with earthquakes than tsunamis, the news of the 8.8 magnitude earthquake off the Russian coast spread quickly. Tsunami alerts were ...

Tectonic plates cause tsunamis mainly through sudden movements along subduction zones, where one plate dives beneath another. When stress builds up and the seafloor abruptly shifts during a major ...

A magnitude 7.0 earthquake struck off the coast of northern California on Thursday at 10:44 a.m. PST, just offshore of Cape Mendocino. Shortly after the earthquake, a tsunami warning was issued.