What is Long Valley Caldera and why is it important?
The Long Valley Caldera is the depression formed from the supervolcano eruption 760,000 years ago, which ejected hot ash, lava and toxic gas. The eruption 760,000 years ago erupted 140 cubic miles of material from the supervolcano. To put this into perspective, the 1980 eruption of Mount St.
What would happen if Long Valley Caldera erupted?
Depending on the wind direction and the location of an eruption site, future eruptions in the Long Valley area could spread volcanic ash over the communities of Mammoth Lakes, June Lake, or Lee Vining (see also eruption chart). Pyroclastic flows incicated by yellow and orange area.
What is a caldera and how does it form Why are calderas important?
A caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption, magma present in the magma chamber underneath the volcano is expelled, often forcefully. When the magma chamber empties, the support that the magma had provided inside the chamber disappears.
Will Long Valley Caldera erupt again?
Geological studies of Long Valley Caldera and the Mono-Inyo Craters volcanic chain indicate that: Future eruptions are more likely to occur somewhere along the Mono-Inyo Craters volcanic chain than from the resurgent dome or south moat area within the caldera.
When was the eruption that caused the formation of Long Valley Caldera?
760,000 years ago
The Glass Mountain eruptions, which were fed by a large, chemically evolving magma chamber in the shallow crust, culminated in the cataclysmic eruption of 600 cubic kilometers of high-silica rhyolite 760,000 years ago.
What kind of volcano is Long Valley Caldera?
Long Valley was formed 760,000 years ago when a very large eruption released hot ash that later cooled to form the Bishop tuff that is common to the area.
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| Long Valley Caldera | |
|---|---|
| Depth | up to 3,000 ft (900 m) |
| Geology | |
| Type | Caldera |
| Age | 760,000 yrs |
How much of the US would be destroyed if Yellowstone erupts?
In all, the YouTuber says FEMA (the Federal Emergency Management Agency) estimates the volcano would do $3 trillion worth of damage, which equates to approximately 14% of America’s GDP. The loss of life, however, would, of course, be the most horrific aspect of event.
What is the biggest super volcano on Earth?
1 – La Garita Caldera.
Where is the biggest caldera in the world?
The Philippine Sea
A group of marine scientists has recently discovered a large igneous massif east of the island of Luzon, located at the bottom of the Philippine Sea. According to the study published, this massif represents the remains of Earth’s largest known caldera.
What’s the difference between a volcano and a caldera?
A caldera is a depression created after a volcano releases the majority of the contents of its magma chamber in an explosive eruption. Without any structural support below, the land around the erupting volcanic vent or vents collapses inwardly, creating the bowl-shaped caldera.
Is Yellowstone volcano overdue?
Yellowstone is not overdue for an eruption. Volcanoes do not work in predictable ways and their eruptions do not follow predictable schedules. Even so, the math doesn’t work out for the volcano to be “overdue” for an eruption.
Is Long Valley Caldera bigger than Yellowstone?
Nestled in the San Juan Mountains, there is ample evidence of one of the largest known volcanic eruptions on the planet: a caldera 22 miles wide and 62 miles long. It’s called the La Garita Caldera, and it rivals the Toba eruption in Indonesia and all Yellowstone eruptions.
How did Long Valley Caldera form?
Much of the Long Valley area of eastern California is covered by rocks formed during volcanic eruptions in the past 2 million years. A cataclysmic eruption 760,000 years ago formed Long Valley Caldera and ejected flows of hot glowing ash(pyroclastic flows), which cooled to form the Bishop Tuff.
Could a nuke trigger Yellowstone?
Some conspiracy theorists have claimed a Yellowstone eruption could be triggered by a nuclear bomb, but is this the case? The short answer, according to the United States Geological Survey (USGS), is a resounding no.
What if a nuke was dropped on Yellowstone?
So in conclusion, nothing would happen and Yellowstone would not erupt if for some reason a nuclear bomb was detonated near the supervolcano.
How overdue is Yellowstone?
Yellowstone is not overdue for an eruption. Volcanoes do not work in predictable ways and their eruptions do not follow predictable schedules.
Which supervolcano is most likely to erupt next?
The researchers say that an extra four cubic kilometres of magma builds up in Toba every thousand years. This means that next equivalent super-eruption would occur in 600,000 years – though smaller ones could happen in the meantime.
Can we survive if Yellowstone erupts?
YVO gets a lot of questions about whether Yellowstone, or another caldera system, will end all life on Earth. The answer is—NO, a large explosive eruption at Yellowstone will not lead to the end of the human race. The aftermath of such an explosion certainly wouldn’t be pleasant, but we won’t go extinct.
What is the deepest caldera in the world?
The Apolaki Caldera is a volcanic crater with a diameter of 150 kilometers (93 mi), making it the world’s largest caldera. It is located within the Benham Rise (Philippine Rise) and was discovered in 2019 by Jenny Anne Barretto, a Filipina marine geophysicist and her team.
Apolaki Caldera.
| Apolaki Crater | |
|---|---|
| Mountain type | Volcanic caldera |
What is the largest caldera on Earth?
The Apolaki Caldera
The Apolaki Caldera is a volcanic crater with a diameter of 150 kilometers (93 mi), making it the world’s largest caldera. It is located within the Benham Rise (Philippine Rise) and was discovered in 2019 by Jenny Anne Barretto, a Filipina marine geophysicist and her team.
What are the 3 types of caldera?
Variations in form and genesis allow calderas to be subdivided into three types: Crater-Lake type calderas associated with the collapse of stratovolcanoes. Basaltic calderas associated with the summit collapse of shield volcanoes. Resurgent calderas which lack an association with a single centralized vent.
Will Yellowstone erupt in 2030?
However, recent studies find that the speed at which the volcano can fill its magma chamber and erupt is on the order of a few decades. That means Yellowstone supervolcano could go from its usual activity like today to erupting in 2030’s.
Where are the 3 super volcanoes in North America?
The United States is home to three active supervolcanoes, the USGS has determined: The famous Yellowstone, Long Valley and the Valles Caldera in New Mexico.
What are the 3 super volcanoes in the US?