Taxonomy term


Ecuadorian volcano plays its pipe

An active volcano in central Ecuador may be the largest musical instrument on Earth: After eruptions in 2015, Cotopaxi’s newly configured crater started emitting distinctly musical rumblings that scientists may be able to use to monitor future activity at the volcano.

24 Oct 2018

Down to Earth With: Volcanologist Scott Rowland

When Scott Rowland returned to his home on Oahu after earning a bachelor’s degree in geology at Oregon State University, intent on heading to graduate school, he was torn between studying volcanoes or groundwater. Ultimately, he chose to study Hawaii’s basalt lavas as a graduate student at the University of Hawaii at Manoa.

14 Aug 2018

Searching for the volcanic origins of iron ore

Most iron ore comes from sedimentary deposits. However, a sizeable minority is mined from volcanic rocks, including those found along the Coastal Cordillera of northern Chile, and in Kiruna, Sweden.

09 Aug 2018

Plumbing Masaya's lava lake

In recent years, volcanic activity at Nicaragua’s Masaya Volcano has been relatively benign, with small eruptive episodes occasionally producing a lava lake in a summit crater that has become one of the country’s top tourist attractions.

24 Jul 2018

Hazards in paradise: Indonesia prepares for natural disasters

Indonesia is a lushly beautiful and tectonically active country that is prone to natural disasters, including eruptions, earthquakes, tsunamis, fires, floods, tornadoes and landslides. What is the country doing to monitor and prepare for such hazards and are those efforts working?

06 Jul 2018

Unprecedented exploration of undersea volcano yields surprising results

Underwater volcanic eruptions happen every day, but because of the vastness of the ocean and the great depth of water blocking the view, catching an active eruption is a game of chance. In fact, the largest-known underwater eruption of the past century was something of a fluke discovery. In July 2012, an airline passenger spotted a huge pumice raft floating in the South Pacific during a flight to Auckland, New Zealand. Upon landing, she alerted researchers, and scientists confirmed the 400-square-kilometer pumice raft near the Havre Seamount using NASA satellite imagery.

18 Apr 2018

Looking under Lusi: Indonesian mud volcano linked to nearby volcanic complex

On May 29, 2006, a massive mud eruption in East Java, Indonesia, began spewing as much as 180,000 cubic meters — the volume of 72 Olympic-sized swimming pools — of hot muddy debris each day from several vents, quickly burying nearby villages and forcing the relocation of more than 60,000 people. Almost 12 years later, the eruption, nicknamed Lusi, continues to produce more than 80,000 cubic meters of mud a day, and nobody knows how long the oozing will continue. In a new study, however, scientists have gotten the clearest look yet of the roots of the mud volcano and its possible connection to a nearby volcanic complex that may be driving the eruption.

01 Feb 2018

Caldera clays may hold key to lithium independence

Most of the world’s lithium is mined in South America and Australia. New research suggests that the United States may have its own untapped lithium supplies in lake deposits in the calderas left behind by large volcanic eruptions. In the study, published in Nature Communications, researchers detail a new way to detect deposits of the silvery white metal in places such as Crater Lake in southern Oregon.

28 Nov 2017

Ice (Re)Cap: November 2017

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

14 Nov 2017

Geomedia: Books: Vivid anecdotes abound in "Eruption: The untold story of Mount St. Helens"

The 1980 eruption of Mount St. Helens was a pivotal event in the geologic careers of many volcanologists. Maybe it drove them to the geosciences, maybe it opened a door for more monitoring and research jobs in the United States, or maybe it was just an excellent example that the lower 48 states are volcanically active. However, as seminal as the 1980 eruption was, it happened almost 20 years before most of today’s college students were even born. To them, the eruption is another example from history, like Pelée or Vesuvius. They likely don’t have the same visceral reaction to it as those who remember it (even if, like me, you were still in preschool when the eruption occurred.)

26 Oct 2017