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)

Responses

National Volcano Early Warning System (NVEWS)
National Volcano Early Warning System (NVEWS)

Federal Emergency Management Agency (FEMA)
Federal Emergency Management Agency (FEMA)

National Seismology Center
National Seismology Center

Volcano Notification Service (VNS)

Volcano Notification Service (VNS)