PBS NewsHour Would a Major Earthquake Sink Portland in Liquefied Soil?
Would a Major Earthquake Sink Portland or Seattle in Liquefied Soil? Details
Program: PBS NewsHour
Episode: Would a Major Earthquake Sink Portland in Liquefied Soil?
Though the impact of Wednesday's 5.9-magnitude earthquake off Oregon's coast was minimal, a lesser-known risk of temblors -- a phenomenon called liquefaction where sandy soil turns to liquid and loses its ability to support weight -- has some scientists worried. Tom Bearden reports what's being done to prepare for a major quake.
Premiere Date: 04/12/2012
Episode Expires: Never
TV Rating: E
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