USGS Volcano Hazards Program Volcano Update


NMI update page and observatory web site


Low-level unrest continues at Pagan Volcano throughout the past week. Seismic activity remains above background and a small explosion at ~15:45:50 UTC on 27 December 2013 was detected. This event is similar to previous small explosions and may have included a weak ash emission, but the webcam was not in operation at the time. A robust steam and gas plume was visible in web camera images Occasionally during the past 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.

Update in Common Alerting Protocol (CAP) format