Jeremy Preston

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Kilauea's Eruption Has Made So Much Lava That It's Making New Land Along The Coast

This won’t come as much of a surprise to volcanologists, or anyone living on Hawaii’s Big Island, but it’s something that has nevertheless stirred …

New insight into Earth's crust, mantle and outer core interactions

A new study by the University of Liverpool, in collaboration with the Universities of Lancaster and Oslo, sheds light on a longstanding question that …

Scientists use 4D scanning to predict behavior of volcanoes

Scientists are using the latest in 4D technology to predict the behaviour of lava flows and its implications for volcanic eruptions.<p>The results …

Water appeared while Earth was still growing

Up until about ten years ago, scientists thought they had a pretty good picture of how the moon and Earth came to co-exist. Then more precise …

Meteorites

Detecting volcanic eruptions

To borrow from a philosophical thought experiment: If a volcano erupts in a remote part of the world and no one hears it, does it still make a …

Earth Science

Understanding the Earth under Hawaii

In the 1960s, some 50 years after German researcher Alfred Wegener proposed his continental drift hypothesis, the theory of plate tectonics gave …

Geology

The secrets of garnet reveal source of water to fuel powerful volcanoes and earthquakes

Among geologists who study powerful earthquakes and volcanoes, there is a mystery: as one of Earth’s tectonic plates slides beneath another in a …

Scientists capture sounds of volcanic thunder

Researchers report in a new study that they’ve documented rumblings of volcanic thunder for the first time, a feat considered nearly impossible by …

Scientists helping to improve understanding of plate tectonics

Scientists at The Australian National University (ANU) are helping to improve understanding of how rocks in Earth’s hot, deep interior enable the …

Earth Science

Another clue for fast motion of the Hawaiian hotspot

The island chain of Hawaii consists of several volcanoes, which are fed by a “hotspot.” In geosciences a “hotspot” refers to a phenomenon of columnar …

New study reveals the secret of magmas that produce South Africa's national treasures

South Africa’s history and economy has been built on its rich natural treasures of a number of precious metals, stones and minerals.<p>The country’s …

Tiny crystals could help predict volcanic eruptions

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 …

The Kazbek disaster: a cryoclastic debris flow

What makes a volcano dangerous? Clearly, the severity of any eruption plays a role. So does the presence of people nearby. But it is not always the …

Giant lava dome confirmed in Japan's Kikai Caldera

Since the Kobe Ocean Bottom Exploration Center (KOBEC) was established in 2015, it has carried out three survey voyages to the Kikai Caldera, south …

Hard Rock Zone

A while ago, I asked Twitter for suggestions of topics for future posts. A great one came from Brian Romans, a Prof at Virginia Tech and a …

Hard Rock Zone

Pretty isn’t it? The white crystals caught my eye, as they did that of three different geologists of the British Geological Survey, who between them …

Speed of metamorphism: heating up

Published in the 1830s, Charles Lyell’s ‘<i>Principles of Geology</i>‘ is one of the founding texts of the subject. Part of a generation of Geologists who …

The many metamorphoses of the Moine

In a companion post I introduced you to a metamorphic rock with an apparently simple history. Using traditional geological techniques on this single …

Iceland Volcano May Be Ready to Erupt

The earthquakes are a telltale sign that pressure is building up in the Bárðarbunga volcano system, triggering an eruption down the line.<p>Iceland's Bárðarbunga volcano system was racked by four large earthquakes at the end of October. The rumbles, reported as magnitudes 3.9, 3.2, 4.7, and 4.7, are a …

National Parks

Ultrafast eclogitisation through overpressure

My blogging torpor has been ended by a super-interesting new paper that links together many of my favourite topics. It includes eclogites, …

Hard Rock Zone

Note: For a blog post on Mount Agung, see This is a repost, originally written in 2015. Small edits have been made, and some new (old) images added. …

Reventador and Sumaco: two jungle volcanoes on the Amazon slope

I’ve been fascinated with the scenario of an active volcano poking above the jungle. Back in 2009, I experienced it when I visited Costa Rica and …

Italy's Supervolcano Is Even More Dangerous Than We Thought

Campi Flegrei, Italy’s supervolcano, is one of the most dangerous in the world, not least because over 1 million people live in the barrel of its gun.<p>…

There's Something Wrong With One Of Hawaii's Volcanoes

Thanks to its overly dramatic and rather persistent earthquake swarms, Yellowstone Caldera – America’s most infamous supervolcano – is getting all …

Hawaii Volcanoes National Park

An Iceland Enigma – The Thórsmörk Ignimbrite

<i>Today we welcome a guest post by volcanologist Dave McGarvie. Dave is a senior lecturer at the Open University and studies volcanoes in Iceland and</i> …

Earth Science

Hard Rock Zone

Someone once said that Iceland is one big volcano. Obviously, this is not true. In fact, it is not even one big volcanic system. Parts of Iceland are …

A fresh view on volcanic plumbing systems

Volcanic eruptions such as Mount St. Helens’ in 1980 show the explosiveness of magma moving through Earth’s crust. Now geologists are excited about …

Geology

Crystals help volcanoes cope with pressure

University of Alaska Fairbanks researchers have discovered that volcanoes have a unique way of dealing with pressure — through crystals.<p>According to …

Crystals

What's The Most Dangerous Supervolcano In The World?

Say the word “supervolcano” and you’ll immediately think of Yellowstone and its violent past – but what about its future? When will the next …

Volcanoes

When Is a Caldera a Caldera?

<b>Léon Prunelle</b> / Originally published September 30, 2014<p><i>This is a re-post of an article by Henrik, written during the Bardarbunga eruption when the</i> …