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... Volcanic Hazards in California January 31, 2012 | USGS "More than 500 volcanic vents have been identified in the State of California. At least... Hawaiian Volcano Observatory – 100 Years January 23, 2012 | USGS has recently published: "The Story of the Hawaiian Volcano Observatory — A Remarkable... Kilauea Volcano Eruption Pictures March 17, 2011 | USGS Hawaiian Volcano Observatory "This thermal image shows the channelized 'a'a flow that was being fed by the fountains... |