What is the volcanic explosivity index vei of a Yellowstone super eruption?

88, the largest recorded value on the index.

What is the VEI of Yellowstone?

Explosivity (Volcanic Explosivity Index) – 8. Top of the scale – Yellowstone has had three of the largest eruptions known over the past 3 million years; only beaten by Toba in Indonesia, which erupted about 74,000 years ago. Each of these three eruptions deposited ash across a vast area of present-day North America.

What is the VEI of a supervolcano?

The term “supervolcano” implies a volcanic center that has had an eruption of magnitude 8 on the Volcano Explosivity Index (VEI), meaning the measured deposits for that eruption is greater than 1,000 cubic kilometers (240 cubic miles).

Where do Supervolcanoes rank on the Volcanic Explosivity Index?

A volcano classified with an index rating of “1”. Has an ejecta volume of greater than 10,000 cubic meters (equivalent to 353,150 cubic feet). Is classified as Hawaiian/Strombolian.
Volcanic Explosivity Index (VEI)

Is there a Vei 9 volcano?

Although this ranking is of some debate – the scale of any ancient volcanic activity is partly based on estimates, after all – La Garita is the only known magnitude 9 eruption. Currently, the massive, circum-Pacific “Ring of Fire” seismic belt is home to more than half of the world’s active volcanoes above sea level.

What volcanoes have a VEI of 8?

2 – Lake Toba

This last major eruption occurred around 75,000±900 years ago and had an estimated VEI= 8, making it the largest-known explosive volcanic eruption within the last 25 million years.

What volcano has a VEI of 8?

1. Yellowstone eruption, 640,000 years ago (VEI 8)

What was the last VEI 7 eruption?

The last VEI 7 eruption, Tambora, occurred ∼200 yr ago. Ideally, we would like to have had data from many such past eruptions to assess natural variability of climatic impacts, and to identify the most robust signals from such large eruptions, but we have had only a few to assess within historical time.

How often do VEI 7 eruptions occur?

1–2 times per thousand years

Specifically, we focus on Volcanic Explosivity Index (VEI) 7 eruptions, which occur 1–2 times per thousand years.

Where are the 7 super volcanoes located?

Volcanoes that have produced exceedingly voluminous pyroclastic eruptions and formed large calderas in the past 2 million years include Yellowstone in northwest Wyoming, Long Valley in eastern California, Toba in Indonesia, and Taupo in New Zealand.

Is Yellowstone the only supervolcano?

The Yellowstone Caldera, sometimes referred to as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States.

What are the 3 super volcanoes?

What are some examples of supervolcanoes? Volcanoes that have produced exceedingly voluminous pyroclastic eruptions and formed large calderas in the past 2 million years include Yellowstone in northwest Wyoming, Long Valley in eastern California, Toba in Indonesia, and Taupo in New Zealand.

What are the 3 super volcanoes in the US?

Three of the seven supervolcanoes are located in the continental US: Yellowstone, the Long Valley Caldera, and the Valles Caldera. The most well known supervolcano is in Yellowstone National Park, Wyoming (shown above).

Is Long Valley Caldera bigger than Yellowstone?

A GIANT supervolcano hidden beneath California could be an equal if not greater threat to the US than Yellowstone volcano, scientists have revealed. The 20-mile long Long Valley Caldera in eastern California is one of the world’s largest volcanic calderas.

Will Yellowstone erupt in my lifetime?

Although another catastrophic eruption at Yellowstone is possible, scientists are not convinced that one will ever happen. The rhyolite magma chamber beneath Yellowstone is only 5-15% molten (the rest is solidified but still hot), so it is unclear if there is even enough magma beneath the caldera to feed an eruption.

Would Mt Rainier destroy Seattle?

Lahars from Mt. Rainier have buried the Kent Valley in the past, but there is no evidence a lahar has reached Seattle in the past 10,000 years. A Washington Department of Natural Resources analysis states that it is possible for a lahar to reach Seattle but would be extremely unlikely.

Which volcano blew its side out?

The Mount St. Helens Eruption

Helens Eruption Was the Volcanic Warning We Needed. It’s been 40 years since the sideways explosion that changed volcanology forever.

Is Mt Saint Helens active?

Mount St. Helens is the most active volcano in the contiguous United States, which makes it a fascinating place to study and learn about.

Is Mt Rainier a supervolcano?

Mount Rainier is an episodically active composite volcano, also called a stratovolcano. Volcanic activity began between one half and one million years ago, with the most recent eruption cycle ending about 1,000 years ago.

Is Mt Rainier male or female?

lady

Re: Mountains: Male or Female? Mount Rainier is definitely a lady!

Will Mt Rainier erupt soon?

Mount Rainier is behaving about as it has over the last half-million years, so all evidence suggests that the volcano will continue to erupt, grow, and collapse.

When did Rainier last erupt?

The last major eruption of Mount Rainier was in 1894. Early residents of Tacoma and Seattle reported seeing explosions on the summit, but it could get much worse. 5,000 years ago, a massive eruption blew several thousand feet off the top and superheated mudslides called lahar sped across the terrain.

Will Mt St Helens erupt again?

We know that Mount St. Helens is the volcano in the Cascades most likely to erupt again in our lifetimes. It is likely that the types, frequencies, and magnitudes of past activity will be repeated in the future.

Is Mt Rainier still active?

Mount Rainier, an active volcano currently at rest between eruptions, is the highest peak in the Cascade Range. Its edifice, capped by snow and 25 glaciers, has been built up by untold eruptions over the past 500,000 years.

What would happen to Portland of Mt Hood erupted?

A significant eruption of Mount Hood, such as an eruption of lava domes that collapse to form pyroclastic flows and lahars, would displace several thousand residents and cause billion-dollar-scale damage to infrastructure and buildings.

Is Mt Hood getting ready to erupt?

A US volcano could erupt in 2022 in a disastrous event that could affect thousands of residents and cause millions of dollars worth of damage, researchers fear. Mount Hood is an active volcano located 50 miles south east of Portland, Oregon, and one of the highest mountains in the States.