What technology did the U.S. Geological Survey (USGS) develop to help monitor volcanic
activity at the five monitoring stations in the continental U.S., Alaska, Hawai'i, and the Mariana
Islands? (1 point)
O National Volcano Early Warning System (NVEWS)
O National Seismology Center
O Federal Emergency Management Agency (FEMA)
O Volcano Notification Service (VNS)