Tsunami experts theorize that shock waves produced after a massive underwater volcanic eruption near Tonga on Jan. 15 caused the higher tidal levels seen along Japan’s Pacific coastline.

Add Yahoo as a preferred source to see more of our stories on Google. Tsunami means "harbor wave" in Japanese, but they differ from other waves that are generated by the wind or solar system. Tsunami ...

FILE - Sunken and damaged boats rest in the boat basin after a powerful tsunami sent repeated surges that broke up docks and tore loose boats in Crescent City, Calif., March 12, 2011. (AP Photo/Jeff ...

They’re unassuming waves far out at sea, which can turn into a massive wall of water slamming the coast. Tsunamis are among the most destructive natural phenomena on Earth -- and while their impact ...

Tsunami waves reached parts of Hawaii, Alaska, California, Washington and Oregon on Wednesday, triggered by a powerful earthquake in eastern Russia. A magnitude 8.8 earthquake hit near Russia's ...

Shock waves triggered by a massive underwater volcanic eruption near Tonga on Jan. 15 were apparently responsible for tidal ...

Tsunami means “harbor wave” in Japanese, but they differ from other waves that are generated by the wind or solar system. Tsunami waves move the entire depth of the ocean, down to the floor, which is ...