Geologists and seismologists have long studied the New Madrid Seismic Zone after three magnitude 8 earthquakes struck the area in the Winter of 1811-1812. However a forthcoming report by Seth Stein and published by the American Geological Society contends the hazard has been overstated. His colleagues at the USGS and the University of Memphis disagree.
On February 27, 2007 a 75-ft wide section of greywacke sandstone failed on the south end of Telegraph Hill, in the very pricey North Beach district of San Francisco. No one was injured, but as many as 120 people were displaced from their homes as city building inspectors red-tagged 7 building effected by the slide.
A traffic camera catches trees and dirt sliding down a hill onto a highway in Portland, Ore. It happened on one of Oregon’s busiest routes – Highway 26, heading out of Portland to the west on March 29. Read on to see the video.
The Yakima Herald Republic has an interesting article on volcanic hazards of Mt. Rainier. Apparently the USGS has plans to increase monitoring with additional seismographs, GPS units, and some kind of laser surveying targets. Read on for a link to the article.