Northern Mariana Islands Recent Status Report, Updates, and Information Releases


NORTHERN MARIANA ISLANDS WEEKLY UPDATE
Friday, December 19, 2014 9:32 AM PST (Friday, December 19, 2014 17:32 UTC)


Report prepared by the U.S. Geological Survey.

PAGAN VOLCANO (VNUM #284170)
18°7'48" N 145°48' E, Summit Elevation 1870 ft (570 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Seismic, infrasound, and web camera data from Pagan Volcano remain temporarily unavailable. Satellite images over the past week were frequently obscured by clouds however steam plumes could occasionally be seen in MODIS views.

Volcanic gas from Pagan may be noticed downwind of the volcano as a distinctive sulfurous odor. 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.


DAIKOKU SEAMOUNT (VNUM #284137)
21°19'27.12" N 144°11'39.12"E, Summit Elevation -1059 ft (-323 m)

NOAA researchers conducting bathymetry surveys report evidence of a low level eruption at Daikoku. The evidence includes: many closely spaced high-amplitude chemical and optical anomalies, high hydrogen in the water samples, and the presence of a new crater (since the last survey in 2003). No obvious activity was noted in hydro-arrays near Wake Island, nor T-phases detected in seismic data from stations on Anatahan or Sarigan.



OTHER NORTHERN MARIANA ISLAND VOLCANOES

Other Northern Mariana Islands volcanoes show no signs of significant unrest.
USGS conducts daily checks of earthquake activity at Pagan, Sarigan, and Anatahan volcanoes.

Currently, technical data transmission problems are affecting seismic and infrasound data. These issues are expected to be resolved within the next day. During this short-term outage, USGS is relying on satellite imagery to monitor the volcanoes.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://volcanoes.usgs.gov/activity/alertsystem/index.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

CONTACT INFORMATION:
USGS Northern Mariana Duty Scientist (808) 967-8815
http://volcano.wr.usgs.gov/cnmistatus.php

CNMI Homeland Security and Emergency Management Office (670) 664-2216
http://www.cnmihsem.gov.mp/