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(2) Issued: (20160329/0201Z)
(3) Volcano: Pavlof (VNUM #312030)
(4) Current Color Code: ORANGE
(5) Previous Color Code: RED
(6) Source: Alaska Volcano Observatory
(7) Notice Number: 2016/A4
(8) Volcano Location: N 55 deg 25 min W 161 deg 53 min
(9) Area: Alaska Peninsula
(10) Summit Elevation: 8261 ft (2518 m)
(11) Volcanic Activity Summary: The intensity of eruptive activity at Pavlof Volcano has declined significantly starting at about 12:30 pm AKDT and currently continuous ash emission from the summit vent is not being observed in satellite imagery. Thus, AVO is lowering the Aviation Color Code to ORANGE and the Volcano Alert Level to WATCH. Seismicity and infrasound signals from Pavlof have dropped to low levels and it appears that the robust eruptive activity that began yesterday afternoon has declined for now. The level of seismic tremor is still slightly above background. A drifting ash cloud extending from the southern Bering Sea into interior Alaska is still present and may pose a hazard to air travel. Additional information about the ash cloud and its impacts on aviation can be found at http://aawu.arh.noaa.gov/.

Although the intensity of the eruption has diminished, it is possible for conditions to change at any time and significant ash emissions may resume with little to no warning. At this reduced level of unrest, it is possible that low-level lava fountaining and minor amounts of ash emission may be occurring and affecting the area in the immediate vicinity of the volcano. AVO will continue to monitor the volcano closely.
(12) Volcanic cloud height: Unknown
(13) Other volcanic cloud information: Unknown
(14) Remarks:
(15) Contacts: Michelle Coombs, Scientist-in-Charge, USGS
mcoombs@usgs.gov (907) 786-7497

Jessica Larsen, Acting Coordinating Scientist, UAFGI
jflarsen@alaska.edu (907) 322-4085
(16) Next Notice: A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at
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Page modified: June 21, 2016 14:47
Contact Information: AVO Web Team

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