(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
(2) Issued: | (20160406/1942Z) |
(3) Volcano: | Pavlof (VNUM #312030) |
(4) Current Color Code: | YELLOW |
(5) Previous Color Code: | ORANGE |
(6) Source: | Alaska Volcano Observatory |
(7) Notice Number: | 2016/A5 |
(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 recent period of eruptive activity at Pavlof Volcano that began on March 27, 2016 has ended. Over the past week, seismicity at the volcano has remained at low levels and shows no indication of activity associated with ash emissions or lava effusion. Satellite observations show no evidence for continuing eruptive activity. Thermal signals at the summit are occasionally visible, but are likely being generated by the cooling of previously erupted lava and debris.The low levels of seismic activity and the lack of evidence for ash emissions or lava effusion indicate that the eruption has ended and thus AVO is lowering the Aviation color code and Volcano Alert Level to YELLOW/ADVISORY. Pauses in vigorous eruptive activity of days to weeks are common during eruptive episodes of Pavlof Volcano. A return to robust eruptive activity remains possible and could occur with little or no warning. Thus, AVO will continue to monitor the volcano closely and will issue additional information as necessary. |
(12) Volcanic cloud height: | Volcanic cloud not observed. |
(13) Other volcanic cloud information: | None. |
(14) Remarks: | |
(15) Contacts: | Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497 Jeff Freymueller, Coordinating Scientist, UAFGI jeff.freymueller@gi.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 http://www.avo.alaska.edu |
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