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SO PROUD of teammate Jessica Watkins, just selected for @NASA's corps of #NewAstronauts. Come join me on Mars, Jess!

Igneous intrusions

Mount St Helens (MSH) Bay of Naples (Vesuvius / Campi Flegrei) Iceland - Katla and Eyjafjallajokull. *****Overnight work = first ever map of Harris Seamount. We are now using it to accurately drop our cameras & sampling gear :-) @NG_PristineSeas. *****ISS picture shows Mt Fuji ever! Incredible shot of flowing lava, *****How volcanoes change the climate (video clip) 115 yrs ago #OTD, Mt. Pelee erupted, killing ~30,000 in Martinique. Nowadays, unlike quakes, eruptions generally predictable. If we monitor. Breadcrust bomb on Vulcano. Vulcano in all its magnificence, looking towards Lipari and Salina. @EarthSciPlymUni. *****VolFilm’s Videos on Vimeo: Lahars; Pyroclastic flows. Top 10 World’s Most Dangerous Volcanoes - Quiet Corner. On the morning of August 27th 1883 the small Indonesian island of Krakatoa virtually destroyed itself in a series of cataclysmic explosions the likes of which have never been witnessed in human history before or since.

Top 10 World’s Most Dangerous Volcanoes - Quiet Corner

Not only was the explosion the loudest sound ever recorded, it released 4 times more energy than the most powerful nuclear weapon ever created, the Tsar Bomba. In fact the sound of Krakatoa going off was heard 4,830 km (3,000 miles) away and ruptured eardrums 64 km (40 miles) away. It is estimated that anywhere between 35,000 and 120,000 people died as a result of the Krakatoa eruption. Most of these were as a result of tsunamis caused by the volcano, however around a thousand died in Ketimbang in Sumatra as a direct result of the eruption. Today there are around 1,500 active volcanoes around the world, Anak Krakatau, “the Child of Krakatoa”. Volcanic eruptions could cost large cities up to $30 billion: Swiss Re - Business Insurance. Fire and Ice! Exceptional video of lava flowing over snow on Mt Etna, Sicily during the eruption earlier this month! Video: Meteo real time. How do #volcanic ash particles become spherical when struck by #lightning? @FabianWadsworth and @CorCima tell us.

Mt. Etna smoke rings!! Keep an eye out on Mt. Etna as it smolders - it likes to be produced these amazing smoke rings! Video: Geoff Mackley. First Global Maps of Volcanic Emissions Use NASA Satellite Data. Elevated carbon dioxide concentrations in the atmosphere may increase water-use efficiency in crops and considerably mitigate yield losses due to climate change, according to a new NASA study.

First Global Maps of Volcanic Emissions Use NASA Satellite Data

The results, published in the journal Nature Climate Change on April 18, show some compensation for the adverse impacts of temperature extremes and water scarcity caused by increasing emissions of carbon dioxide and other greenhouse gases. A wheat field in Eastern India near Murshidabad. Credits: Photo copyright Nupur Das Gupta Studies have shown that higher concentrations of atmospheric carbon dioxide affect crops in two important ways: they boost crop yields by increasing the rate of photosynthesis, which spurs growth, and they reduce the amount of water crops lose through transpiration. Plants transpire through their leaves, which contain tiny pores called stomata that open and collect carbon dioxide molecules for photosynthesis. New Lava Centre Exhibition For Iceland. New Lava Centre Exhibition For Iceland School trips to Iceland have grown in popularity in recent years, and I have been lucky enough to be regularly involved with some of them through my work with Rayburn Tours.

New Lava Centre Exhibition For Iceland

This summer I am looking forward to visiting a new interpretation centre called the ‘Lava Centre’ that is to open in the small village of Hvollsvollur. This convenient location is sure to benefit passing school groups, as it is on the main route (Highway One) that links a number of ‘must see’ locations on the south coast. The Lava Centre opens on June 1st, and promises to be Iceland’s largest volcano and earthquake exhibition.

Can You Solve The Mystery Of The Eruption Without A Volcano? See stunning drone footage of a volcanic eruption from Italy's Mt. Etna. Ice and fire. Mt. Etna (Sicily) yesterday evening, Feb 28. Photo: Saro Barbagallo. Wx #records set so far today. The precip records for Palomar Mtn and Escondido had stood for more than 100 years. #sandiegowx. Live Cam Mount Etna - Summit Craters. ChangeMatters Viewer. Types of volcanic eruptions. During a volcanic eruption, lava, tephra (ash, lapilli, volcanic bombs and blocks), and various gases are expelled from a volcanic vent or fissure. Several types of volcanic eruptions have been distinguished by volcanologists.

These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different meta types of eruptions. *****Taranaki NZ from space: "Volcanoes are one way Earth gives birth to itself." - Robert Gross Photo of New Zealand's Mount Taranaki volcano by space station crew.

Cut-out 3D volcano model. A simple schematic model of the Eyjafjallajökull volcano summit, crater and ash plume as seen on Blue Peter's Make It.

Cut-out 3D volcano model

It is intended as a simple guide to understanding how volcanoes such as Eyjafjallajökull are influenced by tectonic plate activity along the Mid-Atlantic Ridge. It also shows the route of the floodwater from melted glacier ice to the sea. The model is not to scale. Man swims dangerously close to lava zone in Hawaii. The rare 'lava firehose' filmed flowing from Hawaii's Kilauea volcano. Could volcanoes counter climate change? Mount Vesuvius eruption in the midst of WWII, as captured by American pilots, March 1944. Mocking up lava flows for #primary #geography homework. Molten chocolate ganache worked a treat #Ilavayou. Enormous dome in central Andes driven by huge magma body beneath it (cryptodome) A new analysis of the topography of the central Andes shows the uplifting of the Earth's second highest continental plateau was driven in part by a huge zone of melted rock in the crust, known as a magma body.

Enormous dome in central Andes driven by huge magma body beneath it (cryptodome)

The Altiplano-Puna plateau is a high, dry region in the central Andes that includes parts of Argentina, Bolivia, and Chile, with vast plains punctuated by spectacular volcanoes. In a study published October 25 in Nature Communications, researchers used remote sensing data and topographic modeling techniques to reveal an enormous dome in the plateau. About 1 kilometer (3,300 feet) high and hundreds of miles across, the dome sits right above the largest active magma body on Earth.

IMAGE: Japan's highest mountain, Mount Fuji, cutting through the clouds. New candidate for 'missing element' in Earth's core. Image copyright Science Photo Library Japanese scientists believe they have established the identity of a "missing element" within the Earth's core.

New candidate for 'missing element' in Earth's core

They have been searching for the element for decades, believing it makes up a significant proportion of our planet's centre, after iron and nickel. Now by recreating the high temperatures and pressures found in the deep interior, experiments suggest the most likely candidate is silicon. The discovery could help us to better understand how our world formed. Pahoehoe flows over A'a. Awesome science lesson in Hawaii. Ailsa Craig-the ghost island where Olympic curling stones are 'made' This tiny island, with its head poking out of the Firth of Clyde, is around 16 kilometers from mainland Scotland.

Ailsa Craig-the ghost island where Olympic curling stones are 'made'

The island has the nickname “Paddy’s Milestone,” thought to have come about as the island is halfway on the sea-ferry route between Glasgow and Belfast. This route was followed by Irish laborers (paddy being an informal, sometimes derogatory, term for an Irishman) going to Glasgow to seek work. Formed as a plug in an ancient volcano, the small island has had a rather checkered history, especially considering its size. ***Drone close ups of volcanic eruption. Pouring lava on ice. *****Popocatepetl, Mexico in eruption as seen from an airliner! WOW! Photo: Anders Sotelo Cauduro. South Sandwich Islands: volcanic arc in a polar climate. The last time I wrote an article for Volcanocafe it was a guest post about the Galapagos Islands, but now I’m a new member of the Volcanocafe writing team (a little bit more about me later).

South Sandwich Islands: volcanic arc in a polar climate

Deep in the South Atlantic Ocean lies an archipelago of uninhabited volcanic islands, the South Sandwich Islands. A British overseas territory located within the sub-Antarctic region. The South Sandwich Islands consists of 11 islands, they are Zavodovski, Visokoi, Leskov, Candlemas, Vindication, Saunders, Montagu, Bristol, Bellingshausen, Cook, and Thule all formed as a result of the subduction of a part of the South American Plate underneath the Scotia Plate as well as numerous seamounts. Because of the remote location of the islands and the volatile nature of the seas and climate, human expeditions are very rare so we have to almost always rely on satellite imagery for observations subject to weather.

Map of the South Sandwich Islands. *What a volcano eruption looks like from space: the Sarychev eruption in June 2009 from #ISS #SundayScience. Volcanic hazards: 1 Overview - OpenLearn - Open University - S186_1. Powerpoint: The geography of Iceland's spectacular waterfalls explained #GeographyTeacher. A rare look inside Sean Connery's mind and a million pound volcano. Much to the disgust of a BBC reporter! @007. Cryptodome in central Andes driven by huge magma body beneath it. A new analysis of the topography of the central Andes shows the uplifting of the Earth's second highest continental plateau was driven in part by a huge zone of melted rock in the crust, known as a magma body.

Cryptodome in central Andes driven by huge magma body beneath it

The Altiplano-Puna plateau is a high, dry region in the central Andes that includes parts of Argentina, Bolivia, and Chile, with vast plains punctuated by spectacular volcanoes. In a study published October 25 in Nature Communications, researchers used remote sensing data and topographic modeling techniques to reveal an enormous dome in the plateau. Iceland drills hottest hole to tap into energy of molten magma. Courtesy Statoil By Fred Pearce in Reykjavik Drilling into hot rocks to tap geothermal energy is one thing.

Iceland drills hottest hole to tap into energy of molten magma

Drilling deep enough to tap the energy from magma oozing into volcanoes is quite another, offering a massive increase in the potential to exploit Earth’s inner heat. A flyover of the jets of Enceladus! :) @NASAJPL @CassiniSaturn #DPSEPSC. Large #magma #bubbles pop and rip their surfaces into #lava filaments, releasing pressurized pockets of #volcanic gas. Via Howard Townsend. Volcanoes might have forced early humans out of Africa, altering the course of our evolution. Réunion - Wikipedia.

Réunion[discuss spelling] (French: La Réunion, pronounced: [la.ʁe.y.njɔ̃]; previously Île Bourbon) is an island and region of France in the Indian Ocean, east of Madagascar and 175 kilometres (109 mi) southwest of Mauritius. As of 2014[update], it had a population of 844,994.[1] The island has been inhabited since the 17th century, when people from France, Madagascar and Africa settled there. Slavery was abolished on 20 December 1848 (a date celebrated yearly on the island), after which indentured workers were brought from South India, among other places.

The island became an overseas department of France in 1946. United States: Temperatures at the depth of 10 km. William Bell Scott Ailsa Craig 1860. Smithsonian. How Earthquakes and Volcanoes Reveal the Beating Heart of the Planet. Six submerged volcanoes pose threat to Naples. A Trio of Plumes in the South Sandwich Islands. On September 29, 2016, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this false-color image (MODIS bands 7-2-1) showing volcanic activity in the South Sandwich Islands. Located in the South Atlantic Ocean, the uninhabited South Sandwich Islands include several active stratovolcanoes. Due to their remote location, these volcanoes are some of the least studied in the world, though satellites often catch them erupting. Air pollution from Icelandic volcanoes. Lava fountains, Holuhraun, Iceland 29 September 2016 by Anja Schmidt and Claire Witham In September 2014, a huge volcanic eruption in Iceland emitted up to nine times as much sulphur dioxide per day as all European industry combined.

Indonesia evacuates tourists after volcano eruption. Image copyright Reuters Indonesian authorities have evacuated some 1,100 tourists after a volcano erupted at one of the country's most popular hiking destinations. Mount Barujari on Lombok island erupted on Tuesday, shooting ash 2,000m (6,500 ft) into the air. Officials are still searching for several hundred tourists who remain missing, according to the country's disaster agency. There have been no reports of injuries caused by the eruption. Nearly 400 foreign and local tourists have been registered since Sunday to climb the mountain, according to the Disaster Mitigation Agency's spokesman Sutopo Purwo Nugroho. What is the #energy budget of a #hydrothermal #eruption? Our new article out now. Volcanology Articles : If Europa Has Ice Plumes, Maybe They Work Like Earth’s Volcanoes.

What If Every Volcano on Earth Erupted at Once? Etna erupting - Sicily, Italy. Krakatoa - Objectivity (early citizen science) #84. *****Why Don't We Just Throw All Our Garbage Into Volcanoes? Pyroclastic flows move like this: Turbidity current. Holuhraun lava flow (as if in another place) Tourists flock to Kilauea Volcano lava streams. Volcano seismicity at long-dormant stratovolcanoes.