Volcanoes

Volcanoes News -- ScienceDaily Volcano News and Research. Latest scientific research on how volcanoes work, predicting volcanic eruptions, climate change due to volcanic eruption and more.

  • Scientists decipher the magma bodies under Yellowstone
    on April 16, 2018 at 10:56 pm

    Using supercomputer modeling, scientists have unveiled a new explanation for the geology underlying recent seismic imaging of magma bodies below Yellowstone National Park. […]

  • New insight into how Giant's Causeway and Devils Postpile were formed
    on April 12, 2018 at 12:57 pm

    A new study by geoscientists has identified the temperature at which cooling magma cracks to form geometric columns such as those found at the Giant's Causeway in Northern Ireland and Devils Postpile in the USA. […]

  • Great magma erup­tions had two sources
    on April 3, 2018 at 12:58 pm

    New research may explain controversies related to great magma eruptions. […]

  • Did highest known sea levels create the iconic shape of Mount Etna?
    on March 30, 2018 at 12:56 pm

    New research suggests the Mediterranean Sea may have played a major role in the development of its iconic shape tens of thousands of years ago. […]

  • Detecting volcanic eruptions
    on March 29, 2018 at 11:08 pm

    A case study of an eruption of Calbuco in Chile was used to evaluate data delivered by infrasound sensors. […]

  • Wider coverage of satellite data better detects magma supply to volcanoes
    on March 28, 2018 at 5:07 pm

    Using satellite imaging, researchers for the first time identified a major magma supply into a reservoir extending almost two miles from the crater of a volcano in Nicaragua. […]

  • Underwater volcano behavior captured by timely scientific expedition
    on March 14, 2018 at 2:20 pm

    Researchers got a rare opportunity to study an underwater volcano in the Caribbean when it erupted while they were surveying the area. […]

  • Ash from dinosaur-era volcanoes linked with shale oil, gas
    on March 13, 2018 at 2:17 pm

    Nutrient-rich ash from an enormous flare-up of volcanic eruptions toward the end of the dinosaurs' reign kicked off a chain of events that led to the formation of shale gas and oil fields from Texas to Montana. […]

  • A new discovery that makes possible prediction immediately before plasma loss
    on March 1, 2018 at 3:36 pm

    In phenomena occurring in nature and in society, it is often commented that "Something may happen at any time, but it is difficult to predict when that something may occur." Solar flares, volcanic eruptions, extreme rainfall, and economic crises are examples of this. Such cases are called sudden phenomena. Prediction of sudden phenomena is one of the important issues in physics. By comparing physical processes related to sudden phenomena by researchers from various fields, new research is being initiated in which we fully understand sudden phenomena and what we understand leads to predictions of those phenomena. […]

  • Another clue for fast motion of the Hawaiian hotspot
    on February 27, 2018 at 2:07 pm

    Recent studies have suggested that the Hawaiian hotspot moved relatively quickly southward in the period from 60 to about 50 million years ago. This hypothesis is supported by a new study. Researchers have evaluated new rock dating of the Rurutu volcanic chain and added data from the Hawaiian-Emperor chain and the Louisville chain. It shows that the Hawaiian-Emperor hotspot displays strong motion between 60 and 48 million years ago. […]

  • New insight into how magma feeds volcanic eruptions
    on February 22, 2018 at 3:35 pm

    Researchers have provided new insights into how molten rock (magma) moves through the Earth's crust to feed volcanic eruptions. Using laboratory experiments involving water, jelly and laser imaging, researchers were able to demonstrate how magma magma flows through the Earth's crust to the surface through magma-filled cracks called dykes. […]

  • Scientists eavesdrop on volcanic rumblings to forecast eruptions
    on February 16, 2018 at 7:26 pm

    Sound waves generated by burbling lakes of lava atop some volcanoes point to greater odds of magmatic outbursts. This finding could provide advance warning to people who live near active volcanoes. […]

  • Giant lava dome confirmed in Japan's Kikai Caldera
    on February 9, 2018 at 3:07 pm

    Researchers have confirmed that a giant lava dome was created in the Kikai Caldera, south of Japan's main islands after the caldera-forming supereruption 7,300 years ago. The dome is in the world's largest class of post-caldera volcano, with a volume of over 32 cubic kilometers. It is possible that currently a giant magma buildup may exist under the Kikai Caldera. […]

  • Tidal cycles could help predict volcanic eruptions
    on January 24, 2018 at 4:41 pm

    A study of a New Zealand volcano suggests that a volcanic system's response to tidal forces could provide a tool for predicting a certain type of eruption. […]

  • Tiny crystals could help predict volcanic eruptions
    on January 23, 2018 at 3:19 pm

    They can be as small as a grain of salt, but tiny crystals that form deep in volcanoes may be the key for advance warnings before volcanic eruptions. Volcanologists have said the research provided new information that could lead to more effective evacuations and warning communications. […]

  • Atmospheric changes leave their mark in tree rings
    on January 18, 2018 at 7:29 pm

    A new study shows the chemical register of climate change and global episodes such as volcanic eruptions in high-mountain centennial forests in the Iberian Peninsula (Spain). […]

  • Large volcanic island flank collapses trigger catastrophic eruptions
    on January 18, 2018 at 7:29 pm

    New research not only implies a link between catastrophic volcanic eruptions and landslides, but also suggests that landslides are the trigger. At the heart of Tenerife and standing almost 4 km high, Teide is one of the largest volcanoes on Earth. Over a period of several hundred thousand years, the previous incarnations of Teide have undergone a repeated cycle of very large eruptions, collapse, and regrowth. […]

  • A close-up look at an uncommon underwater eruption
    on January 10, 2018 at 7:13 pm

    A new article describes the first up-close investigation of the largest underwater volcanic eruption of the past century. […]

  • Chemical tipping point of magma determines explosive potential of volcanoes
    on December 13, 2017 at 7:35 pm

    Scientists provide evidence, for the first time, that a subtle tipping point of the chemistry of magmas clearly separates effusive from explosive eruptions worldwide. […]

  • New Tongan island made of 'tuff' stuff, likely to persist years, NASA shows
    on December 11, 2017 at 5:01 pm

    In late December 2014, a submarine volcano in the South Pacific Kingdom of Tonga erupted, sending a violent stream of steam, ash and rock into the air. The ash plumes rose as high as 30,000 feet (9 kilometers) into the sky, diverting flights. When the ash finally settled in January 2015, a newborn island with a 400-foot (120-meter) summit nestled between two older islands -- visible to satellites in space. […]

  • Unearthing the underground effects of earthquakes and volcanoes
    on December 6, 2017 at 5:25 pm

    Researchers analyzed high-resolution seismic velocity data from 36 seismograph stations across the island of Kyushu to identify variations before, during, and after the MW 7.0 2016 Kumamoto earthquake. Velocity decreased in the region of the rupture fault when the earthquake struck, and then gradually recovered, although this recovery showed spatial variability. This variability corresponded to aftershock concentration and volcanic activity. The findings may be useful for disaster prediction and preparedness. […]

  • Submarine volcanoes add to ocean soundscape
    on December 4, 2017 at 2:12 pm

    Most volcanoes erupt beneath the ocean, but scientists know little about them compared to what they know about volcanoes that eject their lava on dry land. […]

  • Eruption clues: Researchers create snapshot of volcano plumbing
    on November 29, 2017 at 5:02 pm

    Researchers have studied the journey of magma, or molten rock, in one of Europe's largest and most active volcanoes, Mount Etna. They applied several techniques to create a more accurate picture of the volcano's plumbing system and how quickly the magma rises to the top to cause an eruption. Their findings contribute to our understanding of how and when volcanoes erupt. […]

  • Time between world-changing volcanic super-eruptions less than previously thought
    on November 29, 2017 at 2:04 pm

    After analyzing a database of geological records dated within the last 100,000 years, a team of scientists has discovered the average time between so-called volcanic super-eruptions is actually much less than previously thought. […]

  • Is Agung going to blow?
    on November 28, 2017 at 4:35 pm

    With Mount Agung on eruption watch in Bali, a researcher notes that monitoring emissions from the volcano may aid volcanologists in determining whether or not an Agung eruption is imminent. […]

  • When magma prevents volcanic eruptions
    on November 27, 2017 at 5:47 pm

    Calderas are huge topographic depressions formed by large volcanic eruptions. They sometimes experience an inflation of their floor of up to a kilometer, caused by magma injection. This process, dubbed 'caldera resurgence,' remains one of the least understood in volcanology. Researchers now show that non-erupted magma left after the caldera-forming eruption behaves as a 'rubber sheet' that inhibits the rise of the newly injected magma. […]

  • Climate change could increase volcano eruptions
    on November 23, 2017 at 2:54 pm

    Shrinking glacier cover could lead to increased volcanic activity in Iceland, warn scientists in a new report. […]

  • Cool idea: Magma held in 'cold storage' before giant volcano eruption
    on November 6, 2017 at 8:22 pm

    Long Valley, California, has long defined the 'super-eruption.' About 765,000 years ago, a pool of molten rock exploded into the sky. Within one nightmarish week, 760 cubic kilometers of lava and ash spewed out in the kind of volcanic cataclysm we hope never to witness. A new study shows that the giant body of magma -- molten rock -- at Long Valley was much cooler before the eruption than previously thought. […]

  • Ice sheets may melt rapidly in response to distant volcanoes
    on October 24, 2017 at 3:06 pm

    Volcanic eruptions have been known to cool the global climate, but they can also exacerbate the melting of ice sheets, according to a new paper. […]

  • New magma pathways after giant lateral volcano collapses
    on October 23, 2017 at 6:55 pm

    Giant lateral collapses are huge landslides occurring at the flanks of a volcano. Such collapses are rather common events during the evolution of a large volcanic edifice, often with dramatic consequences such as tsunami and volcano explosions. These catastrophic events interact with the magmatic activity of the volcano, as new research suggests. […]