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VOLCANO ACTIVITY NOTIFICATIONS

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Report Text
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(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued: (20190801/2221Z)
(3) Volcano: Veniaminof (VNUM #312070)
(4) Current Color Code: YELLOW
(5) Previous Color Code: GREEN
(6) Source: Alaska Volcano Observatory
(7) Notice Number:
(8) Volcano Location: N 56 deg 11 min W 159 deg 23 min
(9) Area: Alaska Peninsula
(10) Summit Elevation: 8225 ft (2507 m)
(11) Volcanic Activity Summary: Pilot reports of steaming coincided with low-level tremor recorded at Veniaminof at 20:30 UTC (12:30 AKDT). These observations mark a departure from recent background activity. Therefore AVO is raising the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY.
(12) Volcanic cloud height: None
(13) Other volcanic cloud information: n/a
(14) Remarks:
(15) Contacts: Matt Haney, Acting Scientist-in-Charge, USGS
mhaney@usgs.gov (907) 786-7497

Cheryl Cameron, Acting Coordinating Scientist, ADGGS
cheryl.cameron@alaska.gov (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

AVO/USGS Volcanic Activity Notice

Volcano: Veniaminof (VNUM #312070)

Current Volcano Alert Level: ADVISORY
Previous Volcano Alert Level: NORMAL

Current Aviation Color Code: YELLOW
Previous Aviation Color Code: GREEN

Issued: Thursday, August 1, 2019, 2:21 PM AKDT
Source: Alaska Volcano Observatory
Notice Number:
Location: N 56 deg 11 min W 159 deg 23 min
Elevation: 8225 ft (2507 m)
Area: Alaska Peninsula

Volcanic Activity Summary: Pilot reports of steaming coincided with low-level tremor recorded at Veniaminof at 20:30 UTC (12:30 AKDT). These observations mark a departure from recent background activity. Therefore AVO is raising the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY.

Recent Observations:
[Volcanic cloud height] None
[Other volcanic cloud information] n/a
[Lava flow] None

Contacts: Matt Haney, Acting Scientist-in-Charge, USGS
mhaney@usgs.gov (907) 786-7497

Cheryl Cameron, Acting Coordinating Scientist, ADGGS
cheryl.cameron@alaska.gov (907) 322-4085

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

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
VOLCANO ALERT LEVELS
NORMAL
Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.
ADVISORY
Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
WATCH
Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway but poses limited hazards.
WARNING
Hazardous eruption is imminent, underway, or suspected.
AVIATION COLOR CODES
GREEN
Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.
YELLOW
Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
ORANGE
Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway with no or minor volcanic-ash emissions [ash-plume height specified, if possible].
RED
Eruption is imminent with significant emission of volcanic ash into the atmosphere likely OR eruption is underway or suspected with significant emission of volcanic ash into the atmosphere [ash-plume height specified, if possible].
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Page modified: February 17, 2017 10:11
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