If a megaquake like the one that hit Japan last March were to strike the U.S., the Pacific Northwest coast would be the likeliest spot. Geologists have their eyes on the Cascadia subduction zone, a 740-mile seam where the Juan de Fuca and North American plates meet. The CSZ has been building up tension for more than 300 years, say some seismologists. If that te
The list of seven summits climbers used to read like an alpinist all-star team. Now there are kids who can include it on their college applications.