Is Mt St Helens A Shield Or Stratovolcano?

stratovolcano.
Mount St. Helens is a stratovolcano, a steep-sided volcano located in the Pacific Northwest region of the United States in the state of Washington.

What category was Mt St Helens?

stratovolcano

What are shield volcanoes?

Where a volcano produces low viscosity, runny lava, it spreads far from the source and forms a volcano with gentle slopes: a shield volcano. Most shield volcanoes are formed from fluid, basaltic lava flows. Mauna Kea and Mauna Loa are shield volcanoes.

Is Mt St Helens a volcano or mountain?

Mount Saint Helens, volcanic peak in the Cascade Range, southwestern Washington, U.S. Its eruption on May 18, 1980, was one of the greatest volcanic explosions ever recorded in North America. Mount St.

Will Mt St Helens ever 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.

What type of volcano is Mount St. Helens and what caused the explosion?

Mount St. Helens, a stratovolcano or composite volcano located in Washington State, USA (46.2º latitude north, 122.2º longitude west,) erupted violently on the Sunday morning of May 18th 1980 at precisely 8:32.

What is the largest shield volcano on Earth?

From sea floor to peak, Mauna Loa, on Hawaii’s Big Island, is the tallest shield volcano on Earth.

Is Mt Fuji a shield volcano?

The 3,776-meter-high (12,388 feet) Mount Fuji Volcano, located on the island of Honshu in Japan, is one of the world’s classic examples of a stratovolcano.

Is the Yellowstone volcano A shield volcano?

No, Yellowstone does not have a shield volcano. Instead, the supervolcano beneath Yellowstone is classified as a caldera at the moment, a volcano with a collapsed magma chamber.

Why is Mount St. Helens a stratovolcano?

Mount St. Helens is an example of a composite or stratovolcano. These are explosive volcanoes that are generally steep-sided, symmetrical cones built up by the accumulation of debris from previous eruptions and consist of alternating layers of lava flows, volcanic ash and cinder.

Is Mt Helens an active volcano?

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. St. Helens a lava volcano?

Lava flows from Mount St. Helens typically affect areas within 6 mi (10 km) of the vent. However, two basalt flows erupted about 1,700 years ago extended about 10 mi (16 km) from the summit; one of them contains the Ape Cave lava tube.

Which is the most active volcano on earth?

Kilauea
Kilauea, Hawaii. Kilauea on Hawaii’s Big Island has been erupting since 1983, making it the most active volcano in the world.

Which volcano is most likely to erupt next?

Mauna Loa erupted most recently in 1984, and will erupt again in the future, posing significant risks to people living on the flanks of the volcano.

Was there a tsunami after Mt St Helens eruption?

May 18, 2015 marks the 35th anniversary of Earth’s largest terrestrial landslide in historical times—a result of a restless volcano and a uniquely violent eruption. The top of Mount St. Helens plowed into Spirit Lake, throwing water 860 feet above lake level, a great inland tsunami.

Is Mount St. Helens a cinder cone volcano?

The result is a cone that has a gentler slope than a cinder cone but is steeper than a shield volcano. Washington state’s Mt. St. Helens is an example of a composite cone volcano.

What made Mt St Helens explode?

On the morning of May 18, 1980, after weeks of small tremors, a magnitude 5.1 earthquake shook beneath Mount St. Helens and triggered an enormous eruption.

What are 5 interesting facts about Mt St Helens?

Here are five facts about the stratovolcano.

• Before erupting, the volcano was 9,677 feet.
• Over 230 square miles of forest was destroyed in minutes.
• The volcano has had numerous eruptions.
• The blast killed USGS scientist David Johnston.
• Native Americans abandoned hunting grounds at the volcano 3,600 years ago.

Is Mount Everest a volcano?

No, Mount Everest is not a volcano. It was produced from a tectonic collision between the Indian and Eurasian tectonic plates tens of millions of years ago.

What are the 3 largest volcanoes?

Height of select volcanoes worldwide (in meters)

Which supervolcano is the biggest?

• 1 – La Garita Caldera.
• 2 – Lake Toba.
• 3 – Cerro Guacha.
• 4 – Yellowstone Caldera.
• 5 – Lake Taupo.
• 6 – Cerro Galán.
• 7 – Island Park Caldera.
• 8 – Vilama.