COMET Scientist Professor David Pyle (University of Oxford) is the recipient of the 2024 Murchison Medal, awarded by the Geological Society of London for his considerable contributions to the field of volcanology.
The Murchison Medal is awarded to geologists who have contributed significantly to ‘hard’ rock studies. David is an internationally recognised volcanologist who has made outstanding contributions to understanding volcanic deposits and processes, using pioneering methods to characterise and classify tephra fall deposits and infer erupted volumes.
The Geological Society will host a formal awards ceremony on 12 June with more details of the day to be shared via its magazine Geoscientist, website and social media channels.
Congratulations David from all of your colleagues at COMET!
In November 2023, a state of emergency was suddenly declared in a fishing town in Iceland, Grindavík, and all residents were rapidly evacuated. In the space of around 6 hours, escalating seismic activity was felt: large cracks and fault movements occurred at the earth’s surface, and homes, businesses and infrastructure were destroyed.
This devastation was caused by huge amounts of magma moving at an unprecedented speed below the surface, which rushed into a crack that opened up below the town. The intrusion that formed was approximately 15-kilometres-long and extended around 1-5 km deep, with widening of up to 8 meters.
The processes and timescales behind the formation of major cracks, or “dikes”, aren’t currently fully understood but the international team of researchers behind a paper published in Science today have revealed new findings that shed some light on how these hazardous events occur.
Using detailed satellite observations alongside seismic measurements and physical modelling, the team of investigators led by University of Iceland and the Icelandic Meteorological Office, found that the magma flow rate under the surface of the earth reached an ultra-rapid and previously unrecorded speed of 7400 cubic meters per second. The study also shows that huge amounts of magma can be forced into cracks due to fracturing in the earth and tectonic stress, without much pressure coming from underlying magma source that feeds it. These findings demonstrate a significant hazard potential for this volcanic system and others with similar features, which can result in large-volume magmatic eruptions on the surface.
COMET Scientist, Professor Andy Hooper, was a key member of the team of investigators:
“Nothing like these rates of magma flow have ever been measured before. Luckily, the magma did not make it to the surface at that time, but this helps us understand how magma-filled cracks that are tens of kilometres long may have formed in the past.”
The events in November were the beginning of the activity in the affected area around Grindavík. Smaller magma intrusions occurred in December 2023 and January 2024, which unfortunately culminated in large eruptions and further devastation in the town, and a new, ongoing eruption started this morning (February 8th 2024).
VMSG has recently announced its 2024 award winners and we are delighted to announce that COMET staff researcher Edna Dualeh has been named as the recipient of the 2024 Willy Aspinall Prize for an outstanding paper on applied volcanology.
Edna’s work on St. Vincent was part of her PhD with COMET Scientist Susanna Ebmeier and COMET Director, Tim Wright both based at the University of Leeds.
A group from the University of Bristol’s volcanology group represented COMET at the recent Girls into Geoscience careers day at the University of Plymouth. The group, consisting of MSc Volcanology students Alex Daniels, Anne-Marie Molina, Hannah Ellis, and PhD Student Ben Ireland, delivered a workshop showcasing a range of volcanological phenomena.
Anne-Marie and Alex had the following to say about the experience:
“We were at Plymouth University representing COMET for an event called “Girls into Geoscience”, where we talked about the different areas of volcanology to try and encourage these girls to pursue a career in geoscience! We wanted to pique their interest by showcasing volcanic rocks, drone imagery, and had a simulation of a volcanic eruption with a Coke and Mentos experiment.
We loved seeing the girls get involved with the interactive activities which they may not have access to in a classroom and loved their questions for us. It was really rewarding to see the girls understand volcanic processes through our experiment and get a sense of the intricacies which take place prior to a volcanic eruption in different settings around the world. This was an amazing opportunity to speak to so many girls with different backgrounds that came together with an interest in geoscience. It felt great to be able to inspire some of them with our own stories and hopefully they’ll pursue a career in geoscience!
We hope to be back representing COMET at this great event next year!”
From July 4 – 9 this year, a team from the University of Oxford, University of East Anglia and the University of the West Indies, Seismic Research Centre and Montserrat Volcano Observatory ran a multi-sensory installation as one of nine showcase exhibits at the Royal Society’s summer exhibition. Over six days, thirty volunteers helped to run the installation, manage the enthusiastic crowds of children and adults, and showcase aspects of volcanic and geophysical research.
The exhibit was designed around the ‘Curating Crises’ project funded by AHRC and NERC, which is exploring historical unrest at Caribbean volcanoes using data sources from archives – including the National Archives, the Royal Society, the British Geological Survey and the Montserrat Public Library.
The tag line for the exhibit was ‘sense, detect, imagine’. The idea was to explore how people living near a volcano might sense unrest; and how the detection of unrest feeds into the imagining, or interpretation, of what is happening underground, and what might happen next. To create sensory elements of the installation we had objects including an early 1900’s gramophone trumpet, with the sounds of bubbling geysers; an ash-covered cord telephone (from the 1990’s) with recorded eye-witness accounts of activity on Montserrat, and some tactile pots carved from scoria, impregnated with a mysterious ‘volcano scent’ that had been created for the exhibition. The highlight of the exhibit was the imaginarium – a ‘light up’ floor, controlled by a raspberry Pi. We ran this in two modes – one to represent the seismicity and movement of magma beneath La Soufrière, St Vincent during the 2021 eruption; and the second to run an interactive game on uncertainty and unrest, where the floor transformed into a map view of an island, which then turns out be a volcano.
The exhibit was busy for the whole of the exhibition, with over 4000 visitors to the building over the final weekend alone. Those who dropped by included Janice Panton, the Government of Montserrat representative; Turner-prize winning artist Veronica Ryan, and Cecil Browne, a Vincentian author. The exhibit is portable (with a van!) and will have another outing at the Oxford Festival of Science and Ideas in October.
Thank you to all of our volunteers, funders, and to the artists and creatives – Output Arts, Ωmega ingredients and Lizzie Ostrom – who helped to turn a 2-page vision statement into a physical exhibit in a little over six months!
Written by Professor David Pyle, University of Oxford
Bridie Davies (UEA, now Manchester) checking the sound from the gramophone trumpet.Stacey Edwards (UWI-SRC) and Jenni Barclay (UEA) checking the pendulum array and smelling stones.The final stages of the uncertainty game. The volcano on the island has erupted, and places where people have chosen to live (represented by toys) have been affected by ash fallout (purple) or pyroclastic flows (orange).
COMET scientist, Dr Susanna Ebmeier has been recognised at the European Space Agency (ESA)-European Geosciences Union (EGU) excellence awards.
The awards celebrate the innovative use of Earth observation data.
Dr Ebmeier, from the University of Leeds, won the individual award for her work using satellite images to further the scientific understanding of volcanic processes.
Satellite technology means researchers can take measurements that show how the Earth’s surface is moving in volcanic areas with a precision of a few millimetres.
That information means that Dr Ebmeier and her colleagues are able to see how molten rock is moving beneath the Earth’s surface, as well as learn about the growth and stability of volcanoes themselves.
The prize winners, from across Europe, have been celebrated at the EGU’s General Assembly which took place in Vienna on 25 April.
Congratulations to Susi from all your COMET colleagues!
On 6 February, a 7.8-magnitude earthquake struck the East Anatolian Fault affecting large areas of Southern Türkiye and Northern Syria. This was followed by a 7.5-magnitude event approximately 9 hours later, around 60 miles to the north. To date more than 37,000 people are confirmed to have died, large numbers of people are affected across the region and the damage to buildings and infrastructure is significant.
Images from ESA’s Sentinel-1A satellite captured on 9/10 February clearly showed the physical effects of the earthquake on the ground, including deformation of up to 6 metres along a 300km section of the fault, and the second event causing a second ~125km rupture. Many population centres sit close to these zones, explaining the significant human impact of the event.
By combining Sentinel-1A imagery from before and after the earthquake, COMET scientists have been able to measure surface deformation that is clearly visible in InSAR and pixel offset tracking data sets shown below:
In addition to the results from the satellite radar data, we have also used the pre- and post-event optical images from Sentinel-2 to estimate ground movement in the earthquakes also using pixel tracking:
The processing outputs from Sentinel-1A data are available for download at our LiCSAR system event page. The results from Sentinel-2 are available here.
The images above contain modified Copernicus Sentinel-1 and Sentinel-2 data analysed by the Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET). Data processing uses JASMIN, the UK’s collaborative data analysis environment (http://jasmin.ac.uk).
For more information on why and how COMET responds to earthquake events read this article by our Director – Professor Tim Wright.
This year, COMET celebrates International Women & Girls in Science Day 2023 by promoting some of the high-quality science that women have achieved, as part of and in collaboration with members of COMET. We would also like to recognise and emphasise that women are still facing many barriers along their scientific career path. More information can be found on the UN website: https://www.un.org/en/observances/women-and-girls-in-science-day
The BGA is delighted to announce that COMET associate, Dr. Zoe Mildon from University of Plymouth, is the Bullerwell Lecturer for 2023! Zoe’s research is focused on understanding tectonics, active faulting and earthquakes. She currently holds a prestigious UKRI Future Leaders Fellowship investigating earthquake interaction and seismic hazard.
The BGA is delighted to announce that Dr Tim Craig from University of Leeds, is the Bullerwell Lecturer for 2022. The main focus of his research is the relation between intraplate earthquakes and tectonics. Tim completed his PhD in 2013 on the topic Constraining Lithosphere Rheology using Earthquake Seismology at Bullard Laboratories in University of Cambridge; this was followed by a PDRA position in pRais, before moving to Leeds in 2015.
Congratulations Tim from all your colleagues at COMET!
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