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Bull Run Quake Science

Find out how destructive a Cascadia earthquake would be for Portland's water supply.

02/18/2016 | Rating TV-G

Oregon Field Guide

Bull Run Quake Science

Clip: Season 27 Episode 2711 | 8m 28sVideo has Closed Captions

Find out how destructive a Cascadia earthquake would be for Portland's water supply.

A Cascadia earthquake will spell trouble for Portland's water supply. But is there any way to know how bad the shaking will be? Divers explore the protected Bull Run Lake, source of Portland's water, in search of evidence from past earthquakes that could shed light on how big the "big one" will be for the Portland area.

02/18/2016 | Rating TV-G

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Oregon Field Guide is a local public television program presented by OPB

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