A tsunami wave usually begins as barely a ripple above the surface out in the open ocean, often thousands of miles from its ultimate destination. By
Subject: tsunami
Transcript: Tsunamis are very fast in the open ocean, Where there's deep water. They can easily keep up with a commercial jetliner in terms Of their speed over
Tsunami are usually the product of a tectonic event, such as an earthquake. They most commonly take place in the Pacific Rim region, because of the
Subject: tsunami
Transcript: [narrator:] unlike wind waves, which as their name suggests, Mare generated primarily by the wind, tsunamis are usually the product of a tectonic