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SpaceNut

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From: New Hampshire

Registered: 2004-07-22

Posts: 29,431

Three volcanoes are erupting simultaneously in Alaska

Three remote Alaska volcanoes are erupting simultaneously along a row of remote islands nicknamed the 'Ring of Fire.' Pavlof, Great Sitkin and Semisopochnoi Volcanoes

The volcanic islands that make up the so-called Aleutian Arc are part of a horseshoe-shaped zone that can be traced along the rim of the Pacific Ocean where many of the world's earthquakes and volcanic eruptions occur.

This region, known as the Pacific 'Ring of Fire,' is seismically and volcanically active because it is located at the boundaries of several tectonic plates that continually collide and mash together.

Seems that I am not remembering that these erupted at least seven years ago...

kbd512

Administrator

Registered: 2015-01-02

Posts: 7,854

Re: Three volcanoes are erupting simultaneously in Alaska

That's clearly related to climate change.  The addition of CO2 to the atmosphere by humans made the atmosphere heavier, causing the extra weight to squirt lava out of the volcanoes.

SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 29,431

Re: Three volcanoes are erupting simultaneously in Alaska

Thats due to all the missing Glacier ice caps that are missing....but then again what's a burp between islands....as its only bad if you can taste it....

I wonder is there any cycle to the eruptions?

kbd512

Administrator

Registered: 2015-01-02

Posts: 7,854

Re: Three volcanoes are erupting simultaneously in Alaska

SpaceNut,

Alternatively, plate tectonics continue on to this day, and will continue to do so, long after everyone alive today is relegated to a footnote in the history textbooks.

SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 29,431

Re: Three volcanoes are erupting simultaneously in Alaska

sure is a plate busy location

The Aleutian arc extends about 3,000 km from the Gulf of Alaska to the Kamchatka Peninsula. It marks the region where the Pacific plate subducts into the mantle beneath the North America plate. This subduction is responsible for the generation of the Aleutian Islands and the deep offshore Aleutian Trench.

https://www.usgs.gov/centers/asc/scienc … ne-studies

https://earthobservatory.nasa.gov/image … an-islands

In southwestern Alaska, those two plates meet head on, and the Pacific plate sinks beneath the North American plate. In this subduction zone, some of the ocean plate melts and the molten rock pushes to the surface in a string of 40 active volcanoes, forming the Aleutian Islands.

https://www.geologypage.com/2013/01/ale … lands.html

he trench forms part of the boundary between two tectonic plates. Here, the Pacific Plate is being subducted under the North American Plate at an angle of nearly 45 degrees. The rate of closure is 3in. (8 cm) per year.

That might be slow but that is quite a bit to disappear....

RobertDyck

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From: Winnipeg, Canada

Registered: 2002-08-20

Posts: 7,932

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Re: Three volcanoes are erupting simultaneously in Alaska

Thats due to all the missing Glacier ice caps that are missing....

Has there been any glacier ice caps on these specific mountains in the last 50 years?