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



NORTHERN MARIANA ISLANDS WEEKLY UPDATE
U.S. Geological Survey
Friday, September 15, 2017, 9:31 AM ChST (Thursday, September 14, 2017, 23:31 UTC)


Report prepared by the U.S. Geological Survey.

No eruptive activity or significant unrest has been detected at volcanoes in Northern Mariana Islands this week.

Monitoring of Northern Mariana Islands Volcanoes

Volcano monitoring data from Anatahan and Sarigan have been unavailable since August 16, 2017. The outage is likely the result of a storm that moved through the area at that time. It is unknown when transportation to the islands can be arranged and repairs made. The Saipan-based seismo-acoustic network remains operational and should allow detection of explosive volcanic activity in the region.

Anatahan Volcano is currently at Aviation Color Code GREEN and Alert Level Normal. Due to the lack of seismic stations on the island, Sarigan Volcano is designated as UNASSIGNED. All other volcanoes in the CNMI including Farallon de Pajaros, Supply Reef, Maug, Asuncion, Agrigan, Pagan, Almagan and Guguan are unmonitored seismically and are designated UNASSIGNED.

Satellite images of CNMI volcanoes are reviewed for evidence of volcanic activity, including ash and gas plumes.

Access to volcanic islands may be restricted by the CNMI government. Contact the CNMI HSEM for the latest information.


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:
CNMI Homeland Security and Emergency Management
http://www.cnmihsem.gov.mp

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

Satellite information, Washington VAAC
http://www.ssd.noaa.gov/VAAC/washington.html