Editor’s note: An earlier version of this story stated that land above the Oso landslide zone was logged in 2005. The site was logged in 2004 and replanted in 2005.
Seattle just wrapped up its wettest March on record, with 9.4 inches of rain reported at Sea-Tac International Airport.
Geologists say near-record rain in the Cascade foothills was key in triggering the fatal landslide near the town of Oso, Wash., on March 22. But they say clear-cutting nearby could also have worsened the risk of the hillside collapsing.