Hotspot volcanoes

Water content controls depth of magma storage under many volcanoes, study finds

Water content controls depth of magma storage under many volcanoes, study finds A possible key to better eruption predictions overturns conventional theory Water content controls how deep magma is stored beneath active volcanoes, a new study finds. Here, lead author Daniel Rasmussen of Columbia University’s Lamont-Doherty Earth Observatory collects volcanic ash from the Fisher Caldera […]

Hotspot volcanoes

Giant sponge gardens spotted on extinct volcanoes in the Arctic Ocean

Scientists have been mystified by how the gardens of massive sponges at the bottom of the Arctic Ocean thrive in the cold, dark environment that is otherwise hostile to life. In the permanently frozen Arctic Ocean, there is little light and therefore low productivity of algae plants, which form the basis of the ocean food […]

Fold mountains

Do you know how mountains are made?

You can join Captain Zoom and his science friends Amy and Mark on Let’s Find Out. Climb aboard the Curiosity spacecraft for exciting experiences, curious kids, and journeys to faraway places. It’s all produced with support from Science Foundation Ireland and you can watch it anytime on RTÉ Player. In this experiment, Zoom discovers that […]

Hotspot volcanoes

Tonga Tsunami: What Are Underwater Or Submarine Volcanoes And How They Erupt

New Delhi: On Saturday January 15, an explosive eruption of the Hunga Tonga-Hunga Ha’apai volcano occurred, triggering a tsunami in the Pacific Ocean. The Undersea Volcano, also called Undersea Volcano, is located in the South Pacific kingdom of Tonga, an archipelago of more than 170 islands in the South Pacific Ocean 2,000 km northeast of […]

Volcanic mountains

Central heating (US): scientists discover an underground volcanic conduit from Galapagos to Panama

Scientists have discovered a 900-mile-long conduit in the Earth’s mantle, beneath the Earth’s crust, that carries volcanic material from the Galápagos Islands to Panama in Central America. An interdisciplinary team led by the Woods Hole Oceanographic Institute discovered “anomalous geochemical compositions beneath Panama” that trace back to the Galápagos plume, a column of molten rock […]

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Ancient Alabama once had mountains taller than Everest

This is the first in a series titled “Ancient Alabama,” examining the natural forces that have made Alabama what it is for the past 500 million years, and how these forces still shape it. State today. Each year, thousands of people visit Alabama’s Cheaha State Park to see the state’s tallest peak, climb the steps […]

Volcanic mountains

Battle of Iwo Jima WWII ships resurrected from water graves – Taiwan English News

Eruptions of volcanoes in Japan’s Ogasawara Islands have caused movement in the earth’s crust, created a new island and lifted ships sunk during the Battle of Iwo Jima above the sea surface, according to Japan Asahi Television. According to Asahi Television report, the Fukutoku-Okanoba submarine volcano, located about 50 kilometers south of Iwo Jima, erupted […]

Hotspot volcanoes

Beyond the lava: where are volcanoes erupting and how long can they last? – National

The incandescent lava spurting from the Cumbre Vieja volcano continues to wreak havoc on the Spanish island of La Palma, destroying buildings and forcing massive evacuations. The volcanic eruption of La Palma which began on September 19 is one of more than 50 in the world that are marked as “continuous” as of October 12, […]

Hotspot volcanoes

Where are most of the volcanoes located?

Volcanoes are found all over the world, forming primarily at the edges of tectonic plates but can also arise in “hot spots” like the one that created the Hawaiian Islands. In total, there are potentially a few 1,500 active volcanoes on Earth according to the US Geological Survey. From these, 51 are now in continuous […]

Volcanic mountains

Canary Islands’ volcanic secrets revealed with lava samples

Image credit: Wikipedia Lava samples from the Canary Islands have revealed new truth about the geological makeup of the earth’s crust and may have implications for volcanic eruption early warning systems, according to a new study. Lava samples have revealed new truth about the geological makeup of the earth’s crust and may have implications for […]

Hotspot volcanoes

The secret to the fiery heart of volcanoes gives clue to predict eruptions

Australian researchers have unlocked a secret hidden in the fiery hearts of many volcanoes, which could lead to better detection of when they might erupt. While volcanoes typically form in places on Earth where tectonic plates meet, hot spot volcanoes can form anywhere and are fueled by magma pushed through cracks in the plates by […]

Hotspot volcanoes

Secrets of Hot Spot Volcanoes Revealed • Earth.com

New research has yielded results that could potentially lead to the development of volcanic eruption warning systems. Previously, lava from “hotspot” volcanoes was thought to be virgin lava, coming from tens of kilometers deep in the mantle. This is not the case, explains Dr Teresa Ubide, a volcanologist at the University of Queensland. “It’s not […]

Hotspot volcanoes

the internal “magmatic filter” that causes the eruption of oceanic island volcanoes

The volcanoes we see on the Earth’s surface are just the tip of the iceberg. Below the surface, they are fed by a complex network of conduits and reservoirs that bring molten rock, called magma, back to the surface. When the magma erupts, it can generate lava flows that cool down to become volcanic rocks. […]

Volcanic mountains

Volcanic secrets revealed – sciencedaily

Lava samples have revealed new truth about the geological makeup of the earth’s crust and may have implications for volcanic eruption early warning systems, a study led by the University of Queensland has found. UQ vulcanologist Dr Teresa Ubide said it was previously understood that the cooled lava from so-called “hot spot” volcanoes was “virgin” […]

Block mountains

Scientific guide to the mountains | Training, wildlife and higher peaks

How are mountains formed? Most mountains owe their existence to the movement of tectonic plates, large sections of the earth’s crust. Where two tectonic plates converge, they warp and bend, resulting in the most common type: folded mountains. The Himalayas, for example, are the result of the slow collision of the Asian and Indian plates. […]

Hotspot volcanoes

Which islands have the most impressive active volcanoes?

Both islands are known for their active volcanoes and for those who fascinate them, it is a difficult choice to decide which are the best. Iceland and the Hawaiian Islands could not be more contrasted. While the Hawaiian Islands are tropical, Iceland is subarctic. While the natives of the Hawaiian Islands are Polynesians, the Icelanders […]

Volcanic mountains

Visit the tropical volcanic wonderland of Reunion Island

This Jurassic-like island landscape is one of the most fascinating in the world, and there is plenty to do for interested travelers. Reunion Island is a French island off the coast of Madagascar and is a lush, volcanic tropical paradise that seems straight out of Jurassic Park. Unlike many other legacies of the old empires […]

Hotspot volcanoes

Why are Indonesian volcanoes so dangerous? • Earth.com

The Indonesian island chain was created by volcanism caused by one of the earth’s plates sliding under another. The Indonesian islands themselves are the peaks of volcanoes rising from the ocean. The magma produced by volcanoes varies widely in composition, depending on the Earth’s mantle where the magma is produced. In Indonesia, the same process […]

Hotspot volcanoes

Earth’s mantle provides new clues to explain Indonesia’s explosive volcanoes

Agung, a volcano in Bali, had an explosive eruption in 2018. Credit: OL Andersen Indonesian volcanoes are among the most dangerous in the world. Why? Through chemical analyzes of tiny minerals in lava from Bali and Java, researchers at Uppsala University and elsewhere have found new clues. They now understand better how the Earth’s mantle […]

Hotspot volcanoes

Explosive Secret of Volcanoes – The Hindu

Volcanoes that have erupted for millennia in a certain way have the capacity to undergo unexpected changes We all know the basics of volcanoes. These are spots on the earth’s crust from which molten rock, volcanic ash and some gases can escape from an underground chamber. Molten rock is called magma when it is below […]

Hotspot volcanoes

Volcanoes in the Solar System Come in Many Varieties, Shapes and Sizes | Canberra weather

news, latest news, There are different types of volcanoes on Earth, from the wide and short shield volcanoes of Hawaii to the craggy, tall, and explosive stratovolcanoes found at the edges of tectonic plates (think of the kind of volcano that destroyed Pompeii). But have you ever considered the types of volcanoes that might exist […]

Hotspot volcanoes

SUNDAY SPACE: Solar System volcanoes come in many varieties, shapes and sizes | Examiner

news, local news, There are different types of volcanoes on Earth. From the wide and short shield volcanoes of Hawaii to the craggy, tall, and explosive stratovolcanoes found at the edges of tectonic plates (think of the kind of volcano that destroyed Pompeii). But have you ever considered the types of volcanoes that might exist […]

Hotspot volcanoes

Why do volcanoes erupt?

According to the traditions of the Australian Gunditjamara people, the mainland’s Budj Bim volcano formed when a giant crouched on the earth for so long that its body became a volcanic mountain and its teeth turned into lava that the volcano spat out. But as the science of geology explains, the 60 to 80 the […]

Fold mountains

How are mountains formed?

Mountains are landforms that rise above the surrounding terrain, usually thousands of feet high. Some mountains stand on their own; others are part of long chains called mountain ranges. Mountains are formed in one of three ways: Volcanic explosions Tectonic faults that occur when tectonic plates slide over each other Tectonic collisions The height of […]

Hotspot volcanoes

How and why do volcanoes erupt?

This week has seen two major volcanic eruptions, so now is the perfect time to try to understand why these spectacular events are happening. Dr Siobhán Power of Geological Survey of Ireland answers a few questions, but let’s catch up with the news first … Earlier in the week, Etna in Italy exploded. Read the […]

Hotspot volcanoes

Australia was once home to hundreds of ancient volcanoes. We can finally find out why

Geologically, Australia is a relatively quiet place to live. Earthquakes are rare and typically sweet, and as with volcanoes, there has not been as much as a burp of magma on the continent in thousands of years. It hasn’t always been that way. In fact, the earth is littered with the remains of mysterious eruptions […]

Hotspot volcanoes

Why has the east coast had hundreds of volcanoes since the dinosaur era? – ScienceDaily

Australia’s east coast is littered with the remains of hundreds of volcanoes – the most recent only a few thousand years old – and scientists have been unable to explain why so many eruptions occurred in the 1980s. last million years. Today, geoscientists at the University of Sydney have discovered why part of a stable […]

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How are mountains formed? – World Atlas

Mountains are formed by movement within the earth’s crust. The crust itself is made up of several large plates, called tectonic plates, which float freely. These huge pieces of the earth’s crust move through molten rock called magma, allowing them to move and collide over time. Even though humans live on the crust, they don’t […]

Hotspot volcanoes

Using sound to study underwater volcanoes

NOAA”width =” “height =””/> The Hawaiian-Emperor Seamount Range (the roughly L-shaped configuration near the center of the image) is approximately 3,900 miles long. For comparison, it is the west coast of North America on the right. Credit: NOAA Imagine placing a stone on a piece of hanging cardboard. If the cardboard is sturdy and plentiful, […]

Fold mountains

The Mystery of the Forces Hidden Behind Earth’s Tallest Mountains May Finally Be Solved

It’s a process that can take billions of years, but mountains do grow – and exactly what factors control this growth have been the subject of ongoing debate among scientists. Now, it looks like we may finally have a definitive answer. According to a new study, tectonic forces beneath mountains — rather than weathering and […]

Hotspot volcanoes

How are volcanoes formed? | Facts about volcanoes

The Earth has four main layers. The innermost layer of the Earth is a solid core made of iron. Its outer core is a molten mixture of iron and nickel. These layers are surrounded by the Earth’s mantle, the pasty layer of molten rock that powers Earth’s volcanoes. And finally, the lithosphere consists of the […]

Hotspot volcanoes

An incredible “lost world” of underwater volcanoes discovered at the bottom of the ocean

Hidden beneath the waves off the east coast of Australia, scientists have discovered a “lost world” of epic volcanic peaks buried beneath the Tasman Sea, never before seen by human eyes. This chain of volcanic seamounts – underwater mountains formed by ancient, extinct volcanoes – rise about 3 kilometers (1.9 miles) above the ocean floor. […]