Volcano Watch: Using Hawaiian eruptions to understand volcanism in northern California

  • This terrain map of the approximately 490-foot Brushy Butte Volcano was made using 1-yard resolution LiDAR data and shows the vents as black dots with channels and levees winding across the landscape. (USGS/Special to West Hawaii Today)

The U.S. Geological Survey has five volcano observatories tasked with monitoring low to high threat volcanoes throughout the United States.