There are alarming signs of volcanic activity and imminent eruption of THE LONG VALLEY CALDERA SUPERVOLCANO in California

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Source: Strang Sounds

THE LONG VALLEY CALDERA supervolcano is considered to be one of the world’s most dangerous, with signs that an eruption is “imminent” having surfaced across the Californian region.

Long Valley Caldera is a depression in eastern California that sits next to the Mammoth Mountain.

One of the planet’s largest calderas — a huge, cauldron-like hollow that forms after an eruption — it measures a staggering 20 miles long and 11 miles wide, and is up to 3,000 feet deep.

It was originally formed 760,000 years ago when a devastating eruption released hot ash that later cooled and formed Bishop Tuff, a welded tuff that characterizes the region.

Ash was sent eight miles into the air, with deposits believed to fall as far east as Kansas.

Despite the absolute chaos that Long Valley could cause if it were to erupt, little is said of it. Instead, more attention is placed on Yellowstone, another supervolcano hundreds of miles to the northeast.

Yet, according to the Science Channel, Long Valley could well be on its way to erupting.

The supervolcano and its recent activity were explored during the channel’s 2017 documentary, ‘Secrets of the Underground’.

Rob Nelson, a scientist, and the show’s narrator said: “There are alarming signs of possible volcanic activity.

And there are clues pointing towards an imminent eruption scattered throughout this valley — the site of the second-largest explosive volcanic eruption in North America.

Even if a modern-day eruption from Long Valley was not on the same scale as previous events, it still poses an “existential threat” to the millions who live around it.

An investigation carried out by the Science Channel in a part of the valley found several instances of smoke billowing out from beneath the ground.

Jared Peacock, a geophysicist, also pointed out an alarming feature of the caldera that could spell trouble using InSAR data that has monitored the region for the last 20 years.

One of the most troubling areas InSAR pinpointed happened to be very close to Mammoth Lakes, a town in the Sierra Nevada mountains.

Pointing to a map created from the data, Mr. Peacock said: “Right here in the middle, you see there’s a resurgent dome.

Long Valley Caldera eruption signs Long Valley Caldera volcanic activity signs | | nbsp
Magma dome under the Long Valley Caldera Supervolcano. Picture via Youtube video

A baking-hot red point is pictured located directly beneath the ground, where magma likely resides.

Mr. Peacock added: “Something underneath it is pushing it upwards.

In order to determine whether the Long Valley Caldera was truly coming back to life, Mr. Peacock and Mr. Nelson set up a pair of sensor pipes directly above the point that the InSAR data identified the resurgent dome, and scanned for signs of trouble deep underground.

The pipes helped detect changes in the Earth’s magnetic field, enabling the two scientists to determine whether any liquid was underground.

Running the tests, they discovered massive amounts of liquid beneath the domes’ surface: clear signs of volcanic activity.

But this activity was not centralized, which would be cause for concern. Rather, it was sparse and spread out.

Long Valley Caldera eruption signs Long Valley Caldera volcanic activity signs | | nbsp
Data suggest that something like magma may be pushing to the surface. Picture via Youtube video

Mr. Peacock said: “We can say conclusively that there is no giant magma chamber below. But there are smaller satellite ones around the area.”

A year later, and a study published in the science journal, GeoScienceWorld, found evidence of ground deformation at the supervolcano.

Geologists who led the study found “ongoing uplift suggests new magma may have intruded into the reservoir” since at least 1978.

The uplift could be evidence of moving molten rock or the crystallization of material deep beneath the ground.

The study reads: “Despite 40 years of diverse investigations, the presence of large volumes of melt in Long Valley’s magma reservoir remains unresolved.

The scientists estimated the Long Valley Caldera reservoir contains “considerable qualities of melt”, likely greater than 240 cubic miles (1,000 cubic kilometers).

About 27 percent of this melt could be hot enough to be scorching liquid rock.

According to the United States Geological Survey (USGS), Long Valley last erupted about 100,000 years ago. [Express]

Now if you enjoyed this article, I recommend you watch Cascadia, The Big One:

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The post There are alarming signs of volcanic activity and imminent eruption of THE LONG VALLEY CALDERA SUPERVOLCANO in California appeared first on Nwo Report.

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