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B. Researchers Work on a Tsunami Alert for the Pacific Northwest

Narrator: This is Science Today. Researchers at the Scripps Institution of Oceanography are working with Canadian scientists in the Pacific Northwest to develop an early waning system for tsunamis. Geodesist Yehuda Bock says it would work with GPS technology, which they've used to study subduction zones off Indonesia and to model earthquakes.

Bock: The same technology that we used for modeling the earthquake could then be used as a way of providing early warning for a tsunami. The way it works is the GPS measurements are now being able to be recorded and processed essentially in real time. We can monitor the real time motions and by understanding the tectonics of a region, we can then create what we call scenario earthquakes meaning, we can anticipate where a great earthquake will occur.

Narrator: In the Pacific Northwest, there's a bout a fifteen minute delay between an earthquake happening on the subduction zone and a tsunami hitting Vancouver Island . So, that's fifteen minutes in which a warning could be issued.

Narrator: For Science Today, I'm Larissa Branin.