Home Volcanoes

Volcanoes

Latest

An Underwater Volcanic Eruption. Credit: NSF and NOAA

How volcanoes explode in the deep sea

Geology Page - July 3, 2020

Alaska’s Umnak Island in the Aleutians showing the huge, 10-km wide caldera (upper right) largely created by the 43 BCE Okmok II eruption at the dawn of the Roman Empire. Landsat-8 Operational Land Imager image from May 3, 2014

Eruption of Alaska’s Okmok volcano linked to period of extreme cold in ancient Rome

Study proves that magma chambers are huge masses of crystals with just a very small amount of melt

Three water-filled maars in the Eifel, Germany (Gemündener Maar, Weinfelder Maar, Schalkenmehrener Maar). Created by volcanic activity, maars are also found in other parts of Europe and on other continents, but Eifel-Maars are the classic example worldwide.

New hints of volcanism under the heart of northern Europe

Yellowstone National Park is an American national park located in Wyoming, Montana, and Idaho.

Discovery of ancient super-eruptions indicates the Yellowstone hotspot may be waning

El Niño events and high-latitude Eurasian warming are usually observed after large tropical eruptions. However, simulations of climate impacts by volcanos show large biases when compared with observations, calling for substantial improvements in climate models. The graph depicts the change in zonally averaged surface temperature in observations (the shaded part) and simulations (the line) after large tropical volcanic eruptions. The equation denotes the chemical reaction in the stratosphere. Credit: Advances in Atmospheric Sciences

Philippine volcanic eruption could prompt El Nino warming next winter

Geology Page - June 6, 2020

Credit: Pohang University of Science & Technology (POSTECH)

Volcanic eruptions reduce global rainfall

Geology Page - May 28, 2020

Picture of the Santa Maria volcano in Guatemala. Credit: Zorn et al. 2020, Nature

How drones can monitor explosive volcanoes

Geology Page - May 26, 2020

The only remnants of Pūhāhonu that are above sea level (Gardner Pinnacles). Credit: NOAA

Researchers reveal largest and hottest shield volcano on Earth

Geology Page - May 17, 2020

Why a big volcanic blow-up at the popular travel destimation Santorini 3200 years ago, but just a few hundred kilometers away, no drama at the volcanoes on Aegina , Methana and Poros islands? Thin sections of the lavas from these four volcanoes yield some of the reasons why. Some minerals only form at greater depths - and the hornblende in the lava from Aegina island indicates that the magma chambers there are deeper than the those underneath the Santorini caldera. But plate tectonics add another, hidden reason also, found research from the University of Johannesburg. Credit: Prof Marlina A. Elburg, University of Johannesburg

A tale of two kinds of volcanoes

Geology Page - May 12, 2020

Applied Geochemistry (2020). DOI: 10.1016/j.apgeochem.2020.104572

Scientists reveal mineralogical and geochemical characteristics of hydrocarbon-bleached rocks in mud...

Geology Page - May 12, 2020

Photomicrograph in crossed polars of precious-metal bearing peridotite. Note the optical zoning (light/dark bands) in the plagioclase (grey coloured mineral) in the central part of the image. The occurrence of this zoning was the focus of the study in question. The width of the image frame is 4 mm. Credit: Nat. Geosci. (2020).

Scientists find evidence of how platinum metals form under 60 million-year-old...

Geology Page - May 3, 2020

Lava streaming from an active vent during the 2018 eruption of Kīlauea Volcano

Excessive rain triggered 2018 Kīlauea volcano eruption, study finds

Geology Page - April 25, 2020

This model shows how iron- and magnesium-rich magma (green) is formed at great depth and can move along the outer edges of the large Altiplano-Puna magma body (APMB)(red) to gradually force its way up to the surface during a volcanic eruption. Eruptions with such lava are uncommon and provide a unique insight into the processes that take place deep inside the Earth under the Andes. Credit: Osvaldo Gonzalez Maurel

New study takes the pulse of a sleeping supervolcano

Geology Page - April 25, 2020

Geysers in Yellowstone National Park attest to the presence of a supervolcano, which is currently dormant. An eruption of this explosive volcano would impact the entire planet. Credit: © P.H. Barry

A new tool to predict volcanic eruptions

Geology Page - April 17, 2020

Volcanic gas emissions in Northern Iceland

New geochemical tool reveals origin of Earth’s nitrogen

Geology Page - April 17, 2020

Volcanic eruption

Volcanic carbon dioxide emissions helped trigger Triassic climate change

Geology Page - April 17, 2020

The ash plume from the Kilauea volcano on the big island of Hawaii was pictured May 12, 2018, from the International Space Station. Credit: NASA

New NASA radar looks to monitor volcanoes and earthquakes from space

Geology Page - April 7, 2020

Minoan eruption of Thera. Satellite image of Thera, November 21, 2000. Credit: NASA, public domain

Tree rings could pin down Thera volcano eruption date

Geology Page - April 2, 2020

volcanic eruption in australia

South American volcano showing early warning signs of ‘potential collapse’

Geology Page - February 21, 2020

The Siberian Traps, the scene of ancient volcanic eruptions 252 million years ago that led to a massive extinction of life on Earth. CCNY researchers Ellen Gales and Benjamin Black obtained samples for their study there.

A twist in the story of volcanic eruptions and mass extinctions

Geology Page - February 10, 2020

For nearly a week, a series of earthquakes have been shaking the area around Grindavik, not far from the steaming waters of the "Blue Lagoon," a popular geothermal spa in southwestern Iceland on the Reykjanes Peninsula

Icelandic volcano swell signals potential eruption

Geology Page - January 27, 2020

Whakaari/White Island, New Zealand. On December 9, 2019, several Australians were among the dozens of tourists who were killed, injured, or went missing when the volcano erupted. Credit: Rfleming/public domain.

Survey reveals low awareness of volcanic hazards in Australia

Geology Page - December 22, 2019

Volcano F. Credit: GEOMAR

Volcano F is the Origin of the Floating Stones

Geology Page - December 10, 2019

A new petit-spot volcano at the oldest section of the Pacific Plate Credit: Tohoku University

Researchers discover a new, young volcano in the Pacific

Geology Page - December 10, 2019

12 3...31 Page 1 of 31

MOST POPULAR

Volcanic rocks hold clues to Earth’s interior

November 25, 2015

Carbon dioxide emissions can be securely stored in underground rocks, with minimal possibility of the gas escaping from fault lines back into the atmosphere, research by the University of Edinburgh has shown. Credit: Johannes Miocic

Fault lines are no barrier to safe storage of CO2 below...

January 27, 2019

Just what sustains Earth’s magnetic field anyway?

June 2, 2016

Oldest pine fossils reveal fiery past

March 11, 2016

MORE ARTICLES

A new study shows that giant ore deposits are tightly distributed above where rigid rocks that comprise the nuclei of ancient continents begin to thin, far below the surface (white areas). Redder areas indicate the thinnest rocks beyond the boundary; bluer ones, the thickest. Circles, triangles and squares show known large sediment-hosted deposits of different metals. (Adapted from Hoggard et al., Nature Geoscience, 2020)

Geologists identify deep-earth structures that may signal hidden metal lodes

USGS map highlights earthquake risk zones. Blue boxes indicate areas of high activity of human-caused earthquake due to deep bore fluid injection.

Earthquakes are triggered well beyond fluid injection zones

Moonstone

Mineral Researches

Moonstone : What Is Moonstone Gemstone? How Is The Moonstone Formed?

The world’s biggest volcano is a magnetic mix-up