Where is pavlof volcano

The volcano is located on the Alaska Peninsula lat The towns and villages closest to the volcano are Cold Bay, Nelson Lagoon, Sand Point, and King Cove, which are all within 90 kilometers km of the volcano fig. Pavlof is a symmetrically shaped stratocone that is 2, meters m high, and has about 2, m of relief.

The volcano supports a cover of glacial ice and perennial snow roughly 2 to 4 cubic kilometers km 3 in volume, which is mantled by variable amounts of tephra fall, rockfall debris, and pyroclastic-flow deposits produced during historical eruptions.

Typical Pavlof eruptions are characterized by moderate amounts of ash emission, lava fountaining, spatter-fed lava flows, explosions, and the accumulation of unstable mounds of spatter on the upper flanks of the volcano.

The accumulation and subsequent collapse of spatter piles on the upper flanks of the volcano creates hot granular avalanches, which erode and melt snow and ice, and thereby generate watery debris-flow and hyperconcentrated-flow lahars. Eruption of Stromboli volcano The Italian volcano Stromboli erupted with a series of small explosions on 3 July Eruption of the Raikoke volcano A powerful, rare eruption from Raikoke volcano in the Kuril Islands on 21 June , could be clearly seen on satellite imagery.

All Volcano Cases. Heavy drizzle on the north side of Madeira Warm rain clouds over Madeira in October State of Arctic and Antarctic sea ice in Rising temperatures has led to a marked decrease in the Arctic sea ice area and thickness which could be clearly seen in Line of thunderstorms over the southern Plains On October convective storms developed over the southern Plains.

Read All Case Studies. First visit to our site? Try our free app! Android iOS version. Photos of seismographs. Volcano Calendar The plume is about 17, feet tall. Little Pavlof is the smaller peak on Pavlof's right shoulder. Eruptions like this are a severe hazard to local and international air traffic. Geological Survey. Pavlof is one of the most active volcanoes in North America. Sometimes Pavlof erupts with very little warning.

In the past years, Pavlof has erupted at least 24 times and may have erupted on several other occasions. A combination of factors - Pavlof's remote location, weather with limited visibility, and very few local inhabitants - may have allowed some eruptions at Pavlof to go unconfirmed.

Today, daily satellite monitoring and real-time data from instruments on the ground bring a continuous stream of information to scientists. Where is Pavlof Volcano? A map showing the location of Pavlof Volcano near the end of the Alaska Peninsula.

The boundary between the North America Plate and the Pacific Plate is shown by the gray toothed line. The Pacific Plate is to the south of the boundary, and the North America plate is to the north of this boundary.

The A-B line shows the location of the cross-section below. Although there is very little human activity on the land immediately surrounding Pavlof, the sky above is heavily travelled. Aircraft from the United States and Canada flying to Asia pass through areas where wind-borne volcanic ash from Pavlof might be carried. Each day thousands of international airline passengers and dozens of flights loaded with freight fly directly above the volcano. An eruption at Pavlof that puts large amounts of volcanic ash high into the atmosphere produces air traffic safety concerns and significant financial losses while flights must be rerouted.

This is why Pavlof Volcano receives so much attention from scientists. Plate tectonics of Pavlof: A simplified plate tectonics cross-section showing how Pavlof Volcano is located on the North American Plate. The thickened portion of the plate represents the Alaska Peninsula. A subduction zone, formed where the Pacific Plate descends beneath the North America Plate, is directly below the volcano. Magma produced from the melting mantle and Pacific Plate rises to the surface and causes eruptions.

Pavlof is located near the western end of the Alaska Peninsula. The convergent boundary between the North America Plate and the Pacific Plate is located to the south and east of Pavlof as shown on the map above. The North America Plate is moving in a southerly direction, and the Pacific Plate is moving towards the northwest.

These relative motions produce the collision between the two plates that creates a subduction zone at their boundary. At this location, both plates consist of oceanic lithosphere. A diagram of this plate boundary situation is shown in the simplified cross-section on this page.

Alaska Volcano Observatory image.