After runup, part of the tsunami energy is reflected back to the open ocean and scattered by sharp variations in the coastline. In addition, ...

For example, researchers reported in 2012 that a tsunami spawned by a magnitude-7.7 earthquake off Sumatra in October 2010—which killed 400 people—appeared to have had higher than expected ...

The eyewitness surveys covered about 300 kilometers of observations along the Dominican Republic's north coast, allowing the researchers to make 29 runup and tsunami height measurements at 21 ...

Tsunami Mysterious 'mega-tsunamis' that shook the entire world for 9 days revealed by satellite. ... This is known as the runup height, or the height the wave reaches after it makes landfall.

SAN FRANCISCO (KRON) — A tsunami warning blared over cellphones across the San Francisco Bay Area on Thursday after a 7.0-magnitude earthquake struck Northern California. The quake was big en… ...

That difference means tsunami waves travel at 450 to 500 miles per hour (725 to 800 kilometers per hour), ... "whereas nearby locations do not have much of a runup at all," Yim said.

If a magnitude 9.0 earthquake struck in the Cascadia subduction zone, along the B.C. and U.S. coast, tsunami waves would reach the outer coast of northwest Vancouver Island in about 20 minutes ...