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AVO upgrades status of Pavlof Volcano
On Sunday, the Alaska Volcano Observatory (AVO) gave the Pavlof Volcano an upgraded status after a pilot reported an ash cloud 20,000 feet high in the area.
AVO has altered the aviation color code to red in the region, issuing the volcano warning. Furthermore, in the area, the National Oceanic and Atmospheric Administration (NOAA) has also released a Sigmet for pilots.
As per AVO, seismic activity was first recorded slightly prior to 4 pm and by 4:18 pm. The ash cloud has already been being pushed north. The eruption also resulted into tremors on the ground.
According to AVO’s website, located along the Aleutian chain northeast of Cold Bay and King Cove, the Pavlof Volcano has 40 eruptions on record.
The US Geological Survey said that the volcano was nearly 4.4 miles in diameter, and is among the most consistently active volcanoes across the Aleutian arc.
Volcano Observatory scientists produced the volcano-alert notifications that were based on analysis of data collected by monitoring networks, direct observations, and satellite sensors.
The alert notifications have been issued for both rise and decline in the volcanic activity, including details like the nature of the unrest or eruption and regarding potential or existing hazards and probable outcomes.
The status of a volcano is defined by scientists with the help of the alert levels and color codes, following which they issue various kinds of notifications to tackle particular information requirements. All the notifications issued by them are available to public.
There are different types of volcano-alert notifications, including Volcano Activity Notice (VAN), which announces changes in alert-level or major volcanic activity within an alert level. This announcement covers all volcanic hazards, including lahars, airborne ash, lava flows, ash fall, and pyroclastic flows.