Seismic signals chronicle deadly landslide
![Oso, Wash., landslide](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/04/scivis_2.jpg?fit=860%2C460&ssl=1)
LANDSLIDE SHOCK A landslide on the North Fork of the Stillaguamish River outside Oso, Wash., on March 22 generated seismic waves like those unleashed during an earthquake.
Ted S. Warren/Associated Press
LANDSLIDE SHOCK A landslide on the North Fork of the Stillaguamish River outside Oso, Wash., on March 22 generated seismic waves like those unleashed during an earthquake.
Ted S. Warren/Associated Press