Monday, March 28, 2016

Alaska Volcano Eruption: Pavlof: Color Code RED Alert Level WARNING

via Alaska Volcano Observatory
https://www.avo.alaska.edu/activity/Pavlof.php

A remote and active volcano on Alaska's Aleutian Islands erupted, sending ash 6,000 metres, or 20,000 feet, into the air, scientists said. The U.S. Geological Survey says the Pavlof Volcano, which is about 965 kilometres southwest of Anchorage and roughly 60 kilometres from the nearest community, erupted Sunday at 4:18 p.m. local time. Alaska State Troopers could not immediately say if there were any reports of injuries. The USGS says the eruption also led to tremors on the ground. The agency has raised the volcano alert to its highest level, which warns of hazards both in the air and on the ground. An image of the volcano posted on the Alaska Volcano Observatory website showed a thick streak of light grey ash arcing up out of the peak and streaming sideways across the sky. The agency says the volcano, which is about seven kilometres in diameter, has had 40 known eruptions and is one of the most consistently active volcanoes in the Aleutian arc. The USGS says that during a previous eruption in 2013, ash plumes rose 27,000 feet. Other eruptions have generated ash plumes as high as 49,000 feet. The community closest to the volcano is Cold Bay, which is about 60 kilometres southwest of it.

(For more details, click link above)

CODE DEFINITIONS
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].
WARNING: Hazardous eruption is imminent, underway, or suspected.


Official Name: Pavlof Volcano
Type: Stratovolcano
Most Recent Activity: March 27, 2016
Seismically Monitored: Yes
Color Code: RED
Alert Level: WARNING
Elevation: 8261 ft (2518 m)
Latitude: 55.4173° N
Longitude: 161.8937° W
Quadrangle: Port Moller
CAVW Number: 312030
Pronunciation: Sound file
Associated Features: Little Pavlof
Nearby towns: Belkofski 23 mi (37 km) SW
King Cove 30 mi (48 km) SW
Cold Bay 36 mi (58 km) SW
Nelson Lagoon 48 mi (78 km) NE
Anchorage 590 mi (949 km) NE

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Image from Cold Bay, March 27, 2016, courtesy Royce Snapp


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