Tagged: Earthquake

The Blue whale is believed to be the largest animal ever to exist. But nobody remembers number two. Fin whales are the second largest animals on the planet, weighing in at around 80 tons. And they’re very mysterious creatures. Now scientists have gained better access to the giant whale’s secret lives – almost accidentally.

Central Washington was considered at low risk for earthquakes back when big hydropower dams went up on the Columbia River many decades ago. But a recently completed seismic hazard assessment has found greater earthquake potential for the area than previously thought. Now the dam owners have to figure out how to respond. Seismic retrofits could cost ratepayers across the region hundreds of millions of dollars. Correspondent Tom Banse has this exclusive report.

It's a question all of us face sooner or later: whether to spend a good chunk of money to protect against a catastrophe that has a very low chance of occurring. A workshop that just wrapped up in Corvallis considered that dilemma in the context of Northwest dams and a magnitude 9 earthquake. Correspondent Tom Banse reports.

Two major earthquakes last year raised red flags for the Northwest. Some of the damage from those quakes in Japan and New Zealand resulted from a phenomenon called liquefaction. This is when the ground turns to jello or quicksand. Transmission towers topple, buildings sink and utility pipes break. Now, geologists in the Northwest have mapped the spots most likely to liquefy here in an earthquake. Correspondent Tom Banse begins our story in Japan.