Alert Level: UNASSIGNED,
Color Code: UNASSIGNED
2013-01-25 01:09:56 UTC
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NORTHERN MARIANA ISLANDS WEEKLY UPDATE
U.S. Geological Survey
Friday, January 25, 2013, 11:09 AM ChST (Friday, January 25, 2013, 01:09 UTC)
Report prepared by the U.S. Geological Survey.
AGRIGAN VOLCANO (VNUM #284160)
18°46'12" N 145°40'12" E, Summit Elevation 3166 ft (965 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
In a satellite image from January 22, NOAA's Washington Volcanic Ash Advisory Center spotted a possible volcanic plume from Agrigan. Neither USGS nor NOAA have received confirmation of a volcanic source for this anomaly and it is likely the cloud was weather-related.
Agrigan, the next island volcano north of Pagan, is a stratovolcano truncated by a mile-wide caldera. The only known eruption in 1917 was a significant explosive event that buried a village in more than three feet of ash. There are no ground-based monitoring instruments on Agrigan.
This notice contains additional volcanoes not displayed: Pagan (ADVISORY/YELLOW).
CONTACT INFORMATION:
USGS Northern Marianas Duty Scientist (808) 967-8815
http://volcano.wr.usgs.gov/cnmistatus.php
CNMI Emergency Management Office (670) 322-8001
http://www.cnmiemo.gov.mp/
NORTHERN MARIANA ISLANDS INFORMATION STATEMENT
U.S. Geological Survey
Thursday, July 19, 2007, 4:26 AM ChST (Wednesday, July 18, 2007, 18:26 UTC)
AGRIGAN VOLCANO (VNUM #284160)
18°46'12" N 145°40'12" E, Summit Elevation 3166 ft (965 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
An earthquake was reported felt on Agrigan island at 3:49 pm July 16 local time. About 3 seconds of shaking was reported by a local resident. Seismometers on Sarigan and Anatahan recorded the earthquake and allowed estimation the magnitude at approximately 3.3. No sulfur smell or any other signs of volcanic activity were reported on July 16 or in a followup call on July 17.