Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Volcanic eruptions more complex and harder to predict

10.10.2008
New research by a team of US and UK scientists into volcanoes has found that they function in a far more complex way than previously thought, making future eruptions even harder to predict.

The findings by scientists at the University of East Anglia (UEA) in the UK and Penn State University and the University of Arkansas in the US, will be published in the journal Science on Friday October 10.

The principal discovery is that rather than ‘ballooning’ at depth, as previously thought, the pressurised magma in fact recharges the volcano repeatedly, causing episodic eruptions at the surface.

The research was conducted on the Caribbean island of Montserrat, a UK territory on which the Soufrière Hills Volcano has been erupting since 1995. It has caused widespread damage to the island and its infrastructure, resulting in the displacement of so many people that the island’s population has reduced from 13,000 to just 4,500. In 1997, avalanches of hot rocks, known as pyroclastic flows, destroyed the capital town of Plymouth and the island’s airport. More than 20 people were killed.

The team of scientists and colleagues at the Montserrat Volcano Observatory measured the surface flux of lava through detailed topographic surveys of the lava dome and deposits. They also measured the response of the ground surface around the volcano using GPS (global positioning system) to assess the amount of inflation or deflation in response to magma movement. They have developed a physical model to reconcile these measurements and provide a picture of how magma moves from the mid-crust to the surface.

Richard Herd of the University of East Anglia said: “I worked on Montserrat for seven years and saw at first hand the terrible devastation inflicted by the Soufrière Hills Volcano.

“Our findings show volcanic eruptions to be even more complex than we had originally believed and illustrate the urgent need for further research into this and other volcanoes.”

‘Implications of Magma Transfer Between Multiple Reservoirs on Eruption Cycling’ by Derek Elsworth, Joshua Taron and Barry Voight (all Penn State University), Richard Herd (University of East Anglia and Glen Mattioli (University of Arkansas) is published in Science on October 10.

Press Office | alfa
Further information:
http://www.uea.ac.uk

Further reports about: Magma ballooning hot rocks pyroclastic flows volcanic volcanic eruptions volcano

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

Smallest transistor worldwide switches current with a single atom in solid electrolyte

17.08.2018 | Physics and Astronomy

Robots as Tools and Partners in Rehabilitation

17.08.2018 | Information Technology

Climate Impact Research in Hannover: Small Plants against Large Waves

17.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>