Yellowstone Volcano Size report

Bubbling geysers in Yellowstone National ParkYellowstone supervolcano, located in Yellowstone National Park, Wyoming, USA, is the largest and still active volcano in the world today. About 2.1 million years ago, 1.3 million years ago, and 640,000 years ago, three massive eruptions formed today's three famous tuff sites in Yellowstone National Park.

There is no accepted definition of a supervolcano, the term popularized by a BBC documentary in 2000, but some scientists use the name to describe powerful and massive eruptions. The last major eruption of the Yellowstone volcano was 640,000 years ago.

Unlike ordinary volcanoes, supervolcanoes do not have volcanic cones; they do not have obvious mountain bodies like common volcanoes. The super volcanic magma reservoir is deeply buried in the ground. The vast power makes the crater unable to form and only leaves caldera on the ground. The following post will share more details about the Yellowstone volcano size.

Yellowstone Volcano Basics

The U.S. Geological Survey used Supervolcano to describe an eruption that contained more than 1,000 cubic kilometers of pumice and dust, an amount 50 times larger than the 1883 eruption of Krakatoa in Indonesia. More than 36,000 people were killed in the Krakatoa eruption. Mountains are usually formed after a volcanic eruption, but a super-eruption shatters the hills, leaving only the caldera in the end.

Did you know that Yellowstone National Park is an active supervolcano? Yellowstone National Park covers an area of approximately 898,317 hectares and is one of the largest volcanic craters in the world. Much of the entire park is a volcano. The bubbling geysers and hot springs indicate the churning activity below the surface.

Yellowstone Lake

For the past few decades, scientists have been paying attention to what's going on beneath the Yellowstone caldera. By monitoring the upward pressure under the surface of the region caused by the accumulation of magma underground, scientists issued a warning in 2007. But don't worry too much. The Yellowstone Volcano Observatory is constantly monitoring the region's volcanic activity closely.

Yellowstone Caldera Size

Yellowstone National Park is situated over a supervolcano capable of an eruption of magnitude 8. It has had three massive eruptions, all of which created calderas. Yellowstone Caldera, the youngest of the three calderas, is the largest. Its notable features include Yellowstone Lake.

  • The current caldera of the Yellowstone supervolcano is an oval with an area of 30 x 45 miles (50 x 70 km), which accounts for about one-third of the total area of Yellowstone National Park.

Yellowstone Caldera

What would happen if the Yellowstone volcano erupted?

Yellowstone National Park lies on Earth's most destructive "supervolcanoes." In July 2021, more than 1,000 earthquakes occurred in Yellowstone National Park in the United States. Although the Yellowstone supervolcano is currently dormant, frequent earthquakes have caused concern.

Scientists predict that most of the U.S. territory may be covered in 1 meter of toxic volcanic ash if the Yellowstone supervolcano erupts again. The volcano releases about ten cubic kilometers of material to cover the entire United States. The volcanic ash cloud may be strong enough to change the prevailing westerly winds in North America and change the entire region's climate. It will probably be the biggest natural disaster since the birth of human civilization.


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