USGS Volcano Hazards Program Volcano Update


NMI update page and observatory web site


Seismic and infrasound data from Pagan Volcano obtained this week indicates low level tremor and small discrete earthquakes but there do not appear to be events or trends of obvious significance.

A steam and gas plume from Pagan was visible in satellite images during periods of clear weather over the past week. It was also visible in images from webcams on Pagan Island. This is typical of recent months of observation of Pagan, and no volcanic ash emissions have been detected in satellite images.

Emission of volcanic gas from Pagan may be noticed by individuals downwind of the volcano as distinctive sulfurous odors. Additional information about volcanic gas and vog can be found online 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 this week.

Update in Common Alerting Protocol (CAP) format