South Sarigan Seamount | U.S. Geological Survey Official websites use .gov .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS lock ( or means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. South Sarigan Seamount Find U.S. Volcano Filters The map displays volcanoes, earthquakes, monitoring instruments, and past lava flows. Get Help Earthquake Plots To view an earthquake cross-sectional plot, click "Draw Plot" to start drawing on the map. Once the plot area is selected, click on "View Plot" to view chart or "Clear Plot" to start over. Map Layers Earthquake Colors Earthquake Depth Units Earthquake Time Units Results Filters The map displays volcanoes, earthquakes, monitoring instruments, and past lava flows. Get Help Earthquake Plots To view an earthquake cross-sectional plot, click "Draw Plot" to start drawing on the map. Once the plot area is selected, click on "View Plot" to view chart or "Clear Plot" to start over. Settings Map Layers Earthquake Colors Earthquake Depth Units Earthquake Time Units Map Legend Map Legend Results South Sarigan Seamount Publications Connect South Sarigan seamount, rising to within about 184 m of the ocean surface 12 km S of Sarigan Island, was the site of a short explosive submarine eruption in May 2010 that produced a plume of ash and steam to 12 km altitude. Facts Block Location: Commonwealth of the Northern Mariana Islands Latitude: 16.58° N Longitude: 145.78° E​​​​​​​ Elevation: -184 (m) -604 (f)​​​​​​​ Volcano type: Submarine​​​​​​​ Composition: no data Most recent eruption: 2010 CE Threat Potential: Low* *based on the National Volcano Early Warning System Summary South Sarigan seamount, rising to within about 184 m of the ocean surface 12 km S of Sarigan Island, was the site of a short explosive submarine eruption in May 2010 that produced a plume of ash and steam to 12 km altitude. Sidescan sonar imagery taken in 2003 shows an irregular summit with multiple peaks, including a possibly young cone at about 350 m depth, and flank morphology suggests it is a frequently active volcano. July 19, 2019 Volcanic hazards in the Pacific U.S. Territories Volcanic hazards in the Pacific U.S. Territories The Commonwealth of the Northern Mariana Islands, Guam, and American Samoa lie along the western side of the famed Pacific Ring of Fire. Here, the processes of active island and submarine volcanoes produce activity both underwater and in the atmosphere that poses potential hazards to the daily lives of residents and travelers. Since 2000, CNMI volcanoes have erupted six times, and one... Authors Gabrielle Tepp, Brian Shiro, William W. Chadwick By Volcano Hazards Program Volcano Science Center Agrigan Ahyi Seamount Alamagan Anatahan Asuncion Daikoku Seamount East Diamante Esmeralda Bank Farallon de Pajaros Fukujin Seamount Guguan Kasuga 2 Maug Islands Ofu-Olosega Pagan Ruby Sarigan South Sarigan Seamount Supply Reef Ta'u Island Tutuila Island Zealandia Bank Subduction Zone Science October 22, 2018 2018 update to the U.S. Geological Survey national volcanic threat assessment 2018 update to the U.S. Geological Survey national volcanic threat assessment When erupting, all volcanoes pose a degree of risk to people and infrastructure, however, the risks are not equivalent from one volcano to another because of differences in eruptive style and geographic location. Assessing the relative threats posed by U.S. volcanoes identifies which volcanoes warrant the greatest risk-mitigation efforts by the U.S. Geological Survey and its partners... Authors John W. Ewert, Angela K. Diefenbach, David W. 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Nine volcanic islands on the active East Mariana Ridge north of Saipan were examined between April 20 and May 3, 1994. In addition, a new radio-telemetry seismic station was installed on the island of... Authors M. K. Sako, F. A. Trusdell, R. Y. Koyanagi, George Kojima, R. B. Moore By Natural Hazards Mission Area Volcano Hazards Program Volcano Science Center Agrigan Ahyi Seamount Alamagan Anatahan Asuncion Daikoku Seamount East Diamante Esmeralda Bank Farallon de Pajaros Fukujin Seamount Guguan Kasuga 2 Kīlauea Maug Islands Pagan Ruby Sarigan South Sarigan Seamount Supply Reef Zealandia Bank View All Facts Block Location: Commonwealth of the Northern Mariana Islands Latitude: 16.58° N Longitude: 145.78° E​​​​​​​ Elevation: -184 (m) -604 (f)​​​​​​​ Volcano type: Submarine​​​​​​​ Composition: no data Most recent eruption: 2010 CE Threat Potential: Low* *based on the National Volcano Early Warning System Volcano Hazards Program Links Assess Prepare Forecast Activity Products Observatories About Was this page helpful?