- Current Update, last updated Mar 7, 2014 11:12 ChST:
Low-level unrest continued at Pagan Volcano throughout the past week. Seismic activity remains above background. A robust plume was visible in satellite images during clear views this week. This level of unrest is typical of the past several months.
Volcanic gas from Pagan may be noticed downwind of the volcano as distinctive sulfurous odors. Additional information about volcanic gas and vog can be found on the web at this address: http://hvo.wr.usgs.gov/hazards/FAQ_SO2-Vog-Ash/main.html
Access to the island may be restricted by the CNMI government. Contact the EMO for the latest information.
No eruptive activity or significant unrest was detected at other volcanoes in Northern Mariana Islands during the past week.
- Volcanic History Overview: Pagan Island, the largest and one of the most active of the Mariana Islands volcanoes, consists of two stratovolcanoes connected by a narrow isthmus. Both North and South Pagan stratovolcanoes were constructed within calderas, 7 and 4 km in diameter, respectively. The 570-m-high Mount Pagan at the NE end of the island rises above the flat floor of the northern caldera, which probably formed during the early Holocene. South Pagan is a 548-m-high stratovolcano with an elongated summit containing four distinct craters. Almost all of the historical eruptions of Pagan, which date back to the 17th century, have originated from North Pagan volcano. The largest eruption of Pagan during historical time took place in 1981 and prompted the evacuation of the sparsely populated island. From the Smithsonian Global Volcanism Program.
- Location: Mariana Islands, Mariana Islands
Elevation: 570 m
Recent Eruption: 2006
- Hazard Assessments: Sako, M. K.; Trusdell, F. A.; Koyanagi, R. Y.; Kojima, George; Moore, R. B., 1995, Volcanic investigations in the Commonwealth of the Northern Mariana Islands, April to May 1994, USGS Open-File Report 94-705.
- Link to monitoring data: NMI Web Site
Volcanic Alert Level: ADVISORY Aviation Color Code: YELLOW