https://volcanoes.usgs.gov/observato...volcanoes.html Hawaii Hawaii according to the USGS Hawaii’s most active volcano, called Kilauea according to the USGS according to the US Geological Survey https://volcanoes.usgs.gov/observato...volcanoes.html Hawaiian Volcano Observatory according to the USGS Hawaiian Volcano Observatory USGS, Hawaii Volcano Observatory: Hawaiian Volcanoes https://volcanoes.usgs.gov/observato...volcanoes.html https://volcanoes.usgs.gov/observato...volcanoes.html