The Super-Volcano in California Is Ready to Blow
Everyone knows about California’s famous volcano, Long Valley Caldera. And that every same volcano is showing signs of erupting very soon. This is the same super-volcano that is able to cover all of LA in 3,000 feet of ash. As scientists from Caltech confirmed, there were more than 2,000 earthquakes that occurred in the Long Valley Caldera in the past few years.
Additionally, there was a team was sent by Caltech to investigate if this activity was humans awaiting end or if the risk of that end was dropping. And the California Institute of Technology researchers made several detailed underground images of the super-volcano. They found that the recent seismic activity was just an effect of the fluids and gases that were being released by the Long Valley caldera as it continued to cool down. Additionally, the author of the study Zhongwen Zhan stated, “Me and my team believe that the volcano isn’t preparing to erupt but instead it is in a cooling cycle which is letting out enough liquid and gas to make earthquakes or even little eruptions occur. That is what we are witnessing in this study.”
Another instance of this is in May 1980, there were six earthquakes that happened in the region. Additionally, all the earthquakes were considered as four magnitudes by scientists.
More Info on the Long Valley Caldera
As Zhongwen Zhan and his team conducted the study on the Long Valley caldera, they found that a hard crystallized rock which was formed as the liquid magma cooled down and became solid wrapped around the magma chamber. The Caltech team discovered that the sleeping volcano was the location of a super explosion that occurred about 767,000 years ago. Additionally, the explosion released about 140 miles of all volcanic material and destroyed all the nearby land.
How the information about the volcano was collected
The way Zhongwen Zhan and his team found most of the information about the Long Valley Caldera from places several dozens of seismometers all over the Eastern Sierra. They did this to get data about the seismic measurements of the area. Furthermore, this process is called distributed acoustic sensing or is also referred to as DAS.
Additionally, Zhan was able to cover 62 miles of the valley with cables that can capture underground photos. And that is how they were able to find out where the magma chamber was or what surrounded it.
Another thing Zhongwen’s team used the cables to measure over 2,000 seismic events, most of which were so insignificant individuals did not even feel it. After that, a learning algorithm processed the measurements and made images that showed the areas of each and every earthquake.
An expert on the Long Valley Caldera named Emily Montgomery-Brown said that the waves of earthquakes commenced in 2011. Montgomery-Brown was not a part of Zhan’s study. She additionally added that these earthquakes by the super-volcano caused a deformation of the region and made it rise as a result. But most of the tremors vanished in 2020, which made the valley silent. And that an eruption is not off the table and will be unless something major happens.
By Samuel Cruz
Sources:
Daily Mail: Is California’s super-volcano set to blow? Scientists identify more than 2,000 quakes at the Long Valley Caldera that they say ‘are precursors for an eruption’
Daily Express us: ‘Explosive’ US supervolcano showing ‘clues of imminent eruption’ with millions at risk
Nature World News: Long Valley Supervolcano: World’s Most Dangerous Volcano Shows Signs of ‘Imminent Eruption’
Featured and Top Image Courtesy of James St. John Flickr Page–Creative Commons License
Inset Image Courtesy of Steven Miller Flickr Page–Creative Commons License
