seismology

PNSN

Did you feel the ground move today, or yesterday or over the weekend? Not likely, even though a wave of small tremors was spreading under people's feet in the coastal Pacific Northwest.

The joke around the PNSN office is that recently departed director John Vidale (left) did a good job suppressing earthquakes for the past decade.
Tom Banse / Northwest News Network, 2012

Most people in the Pacific Northwest know we live in earthquake country. A new analysis published this week, however, notes that major quakes in the region have gone on a puzzling hiatus over the last decade.

Matt Cooper, Univ. of Oregon

Any parent of a rambunctious youngster can tell you trouble might be afoot when things go quiet in the playroom. Two independent research initiatives indicate there is a comparable situation with the Cascadia earthquake fault zone.

Horemu / Wikimedia Commons

Research geologists have just finished a field trial to test a less invasive way to complete seismic hazard surveys.

Noah Meyerhans / Flickr

Turnovers, sacks and touchdowns won’t be the only things tracked at Saturday’s NFL playoff game between the Seattle Seahawks and the New Orleans Saints.

Matt Cooper / University of Oregon

This week a research ship is retrieving dozens of seismometers that have spent the last year on the ocean floor off the Northwest coast. Earthquake scientists hope the data they're about to get will shed more light on the structure of the offshore Cascadia fault zone. That plate boundary will be the source of the Big One whenever it rips.