California Volcano Observatory October 29, 2012 | California Volcano Observatory USGS recently opened a fifth volcano observatory in the United States. The new one... Volcanic Hazards in California January 31, 2012 | USGS "More than 500 volcanic vents have been identified in the State of California. At least... USGS: 100 Years of Volcano Monitoring January 15, 2012 | USGS "This year, the USGS is proud to celebrate 100 years of continuous volcano monitoring in... Hawaiian Volcano Observatory – 100 Years January 23, 2012 | USGS has recently published: "The Story of the Hawaiian Volcano Observatory — A Remarkable... Volcano Notification Service from USGS October 10, 2012 | USGS FROM USGS: VNS is a free service that sends email notifications about the status... Cleveland Volcano Heard on Infrasound May 7, 2013 | Live Science The Alaska Volcano Observatory does not have seismic monitoring on Chuginadak Island where Mount Cleveland... Volcanic Hazards in the United States August 5, 2012 | USGS "The United States has 169 active volcanoes. More than half of them could erupt explosively,... Ash Explosion at Cleveland Volcano June 20, 2012 | Alaska Volcano Observatory An ash explosion at Cleveland Volcano on Wednesday sent a cloud of volcanic ash up... |