Oregon Field Guide

Bull Run Quake Science

Clip: Season 27 Episode 2711 | 8m 28s | Video has closed captioning.

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.

Aired: 02/18/16

Rating: TV-G

Problems Playing Video? | Closed Captioning

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