One of this century’s most powerful earthquakes struck off the coast of Russia and generated tsunami warnings and advisories for a broad section of the Pacific, including Alaska, Hawaii and the U.S.

Tsunamis are among the most powerful and destructive natural forces on Earth. These massive surges of water form through entirely different processes than regular ocean waves, and their size can range ...

HONOLULU — One of this century’s most powerful earthquakes struck off the coast of Russia and generated tsunami warnings and advisories for a broad section of the Pacific, including Alaska, Hawaii and ...