The West Mata volcano is ~1200 meters (~4000 feet) below the surface of the ocean, where cameras captured the deepest ocean eruption ever found.
The most violent eruption registered in history was that in the La Garita Caldera in the United States. It occurred 2.1 million years ago and formed a 35 x 75 km crater, drastically changing the climate on Earth. Fortunately, these eruptions are rare: they occur every 50,000 or 100,000 years.
The Mariana region contains 9 volcanic islands and more than 60 submarine volcanoes, of which at least 20 are hydrothermally active. The summits of these submarine volcanoes range from 50 m to more than 1800 m below sea level. This one of the most active volcanic regions on Earth.
Computer models show why eruptive magma chambers tend to reside between six and 10 kilometers underground. A new study reveals why the magma chambers that feed recurrent and often explosive volcanic eruptions tend to reside in a very narrow depth range within the Earth's crust.
Well, at least “extinct” is easy, right? These are volcanoes that will not erupt again. They're dead, Jim. Except that it's not unheard of for volcanoes that are considered “extinct” to occasionally erupt!
This liquid layer around the core meets Earth's lower mantle about 1,800 miles (2,900 kilometers) below the surface.
The deepest place in the Atlantic is in the Puerto Rico Trench, a place called Brownson Deep at 8,378m. The expedition also confirmed the second deepest location in the Pacific, behind the Challenger Deep in the Mariana Trench. This runner-up is the Horizon Deep in the Tonga Trench with a depth of 10,816m.
The Mariana Trench, in the Pacific Ocean, is the deepest location on Earth.
Deep sea amoebas, shrimp-like creatures, and sea cucumbers live at the bottom of the Mariana Trench. Mariana Trench animals include xenophyophores, amphipods, and small sea cucumbers (holothurians) which all dwell at the bottom of the ocean's deepest depression.
What would happen if a "supervolcano" eruption occurred again at Yellowstone? If another large, caldera-forming eruption were to occur at Yellowstone, its effects would be worldwide. Such a giant eruption would have regional effects such as falling ash and short-term (years to decades) changes to global climate.
There are about 20 known supervolcanoes on Earth - including Lake Toba in Indonesia, Lake Taupo in New Zealand, and the somewhat smaller Phlegraean Fields near Naples, Italy. Super-eruptions occur rarely - only once every 100,000 years on average.
Volcano Watch — Mauna Loa is still the largest ACTIVE volcano on Earth. Despite reports to the contrary, Mauna Loa is still the largest ACTIVE volcano on Earth.
Colombia's Nevado del Ruiz – considered the Western Hemisphere's deadliest volcano – is on the verge of an eruption, according to experts.
Last year an expedition to the Mariana Trench made history by conducting the deepest crewed dive ever completed as it descended 10,927 metres into the Challenger Deep.
More than eighty percent of our ocean is unmapped, unobserved, and unexplored. Much remains to be learned from exploring the mysteries of the deep.
Thousands have climbed Mount Everest, and a handful of people have walked on the moon. But reaching the lowest part of the ocean? Only three people have ever done that, and one was a U.S. Navy submariner.
If you were hoping make your fortune mining the sea, consider this: Gold in the ocean is so dilute that its concentration is very small. One study found there is only about one gram of gold for every 100 million metric tons of ocean water in the Atlantic and north Pacific.
The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam. Challenger Deep is approximately 10,935 meters (35,876 feet) deep.
A new study shows that the deepest point on land is under the Denman Glacier in East Antarctica.
Basaltic lava flows are by far the most common type of lava flows on Earth. In fact, approximately 90% of all lava flows have basaltic compositions.
You would never fall into a lava lake the way you would a swimming pool, the molten rock is much more dense, so you would simply land on it, sink a little, and be burned."
While your lungs would almost undoubtedly be irrevocably charred from the hot air above the lava (assuming relatively static air conditions over the lava), it takes about 80 seconds for the average human to fall unconscious from lack of oxygen, and I highly doubt your body will last that long.