Great Arizona Shakeout
September 3, 2012 | Shakeout.org
"In October 2012, communities throughout Arizona will participate in the first ever Great Arizona Shakeout... Rainbow in the Great Basin
October 14, 2012 | USA.gov
"A rainbow descends into the Great Basin after a spring storm. The Great Basin is... Sierra Nevada Uplift
June 18, 2012 | University of Nevada, Reno
"From the highest peak in the continental United States, Mt. Whitney at 14,000 feet in... Sonic Boom over California and Nevada
April 24, 2012 | ABC News
A small asteroid about the size of a minivan is thought to be responsible for... Devils Hole, Nevada: Subaqueous Cavern
June 27, 2012 | USGS
"Devils Hole is a subaqueous cavern in south-central Nevada within a geographically detached unit of... Does Arizona Have Earthquakes?
October 4, 2012 | Arizona Geological Survey
"Each time an earthquake occurs in Arizona, the news media and public asks, “Does Arizona... The Great Oxygenation Event
March 13, 2012 | Rutgers University
"Atmospheric oxygen really took off on our planet about 2.4 billion years ago during the... The Great Lisbon Earthquake
April 11, 2012 | MSNBC.com
MSNBC has a brief article about the subduction zone beneath Gibraltar and how activity there... | 
