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Mike Cassidy

@mikevolc.bsky.social
572 followers 394 following 43 posts

Volcano Scientist | Associate Prof @unibirmingham.bsky.social | Research Affiliate @cser.bsky.social | Co-founder @gvra.bsky.social | Geology | Environmental change and sustainability | Dad of 2 | First gen

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Reposted by Mike Cassidy
Nick Barber 🌋 @volcannick.bsky.social · 19/01/2026
Really cool summary of a recent paper in Geology (gift link 🎁): www.nytimes.com/2026/01/16/s...
nytimes.com
If the Volcanic Eruption Doesn’t Scare You, the Mudflow Should
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Dr. Erik Klemetti Gonzalez @eruptions.site · 25/11/2025
Campi Flegrei and Vesuvius in the Bay of Naples area are extremely hazardous. Millions of people live in or near restless volcanoes. Not sure if we're looking at a catastrophic eruption in our lifetime, but a repeat of 1538 Monte Nuovo would still be dramatic.
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Melaine Le Roy @subfossilguy.bsky.social · 12/12/2025
New study found the largest lahar of the last millennium occurred at Mt Rainier (4.392 m, WA) at the end of the year 1507! 🏔️🌊⌚ Wonderful tree rings... 🥰🌲💍 pubs.geoscienceworld.org/gsa/geology/...
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Nick Barber 🌋 @volcannick.bsky.social · 04/12/2025
This is a must read. A point that resonates with me: the hubris of administrators to decide what is worthy of a degree. You want to create a school where students can study climate change, yet you plan to fire all the geographers, paleontologists, climatologists, and sedimentologists??
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Mike Cassidy @mikevolc.bsky.social · 25/11/2025
While I was writing an article for the @uk.theconversation.com about why the world's little-known volcanoes may pose the greatest threat, an eruption from a volcano that has had no major documented eruption since the ice age erupted: #HayliGubbi volcano, Ethiopia theconversation.com/the-worlds-l...
theconversation.com
The world’s little-known volcanoes pose the greatest threat
In regions like the Pacific, South America and Indonesia, an eruption from a volcano with no recorded history occurs every seven to ten years.
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David Pyle @davidmpyle.bsky.social · 25/11/2025
Fascinating and timely work on the intrusion that preceded the #HayliGubbi eruption - this will turn out to be a very valuable example for volcanologists!
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Dr. Erik Klemetti Gonzalez @eruptions.site · 23/11/2025
I whipped up a new post/newsletter extra for the Hayli Gubbi eruption. First time I've had to post an extra edition! #volcano #eruption eruptions.beehiiv.com/p/eruptions-...
eruptions.beehiiv.com
Eruptions Newsletter Extra for November 23, 2025
Unexpected eruption from Hayli Gubbi in Ethiopia.
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Culture Volcan @culturevolcan.bsky.social · 27/10/2025
#volcan #volcano #Taal 🇵🇭 Des explosions phréatiques ou préatomagmatiques parfois assez spectaculaires sont observées dans le lac/Some relatively impressive phreatic or phreatomagmatic explosions are observed in the lake www.youtube.com/watch?v=Enjx...
youtube.com
Multiple minor eruptions rock Taal Volcano on Oct. 26
YouTube video by Manila Bulletin
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Mike Cassidy @mikevolc.bsky.social · 20/10/2025
An important vote for volcanologists/IAVCEI members that you might have missed (see page 49 in Newsletter), about a "proposal change to allow a president to run for multiple terms of office" Vote here: www.iavceivolcano.org/proposal-cha...
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St Andrews Earth & Environmental Sciences @earthscista.bsky.social · 07/10/2025
Over the last six weeks, SEES scientists Mengwen, Patrick, Helen & Andrea jointed the Beyond EPICA – Oldest Ice project, which aims to analyse the oldest ice on Earth – up to 1.5 million years old, beyond the 800,000 years previously covered – to understand more about Earth's climate 🧊🧪🥼 @bas.ac.uk
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Dr. Erik Klemetti Gonzalez @eruptions.site · 02/10/2025
So, no more Smithsonian/USGS Weekly Volcanic Activity Report until the government reopens ...
media.tenor.com
a man in a maroon shirt with the words this is why we dont have nice things
ALT: a man in a maroon shirt with the words this is why we dont have nice things
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Isobel Yeo @isobelyeo.bsky.social · 30/09/2025
Great to see @mikeaclare.bsky.social @noc.ac.uk quoted in this piece in the Guardian today www.theguardian.com/news/2025/se... about the Hunga Volcano eruption and the subsequent telecommunications outage in 2022.
theguardian.com
Extremely offline: what happened when a Pacific island was cut off from the internet | Samanth Subramanian
A colossal volcanic eruption in January 2022 ripped apart the underwater cables that connect Tonga to the world – and exposed the fragility of 21st-century life
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Jenni Barclay @volcanojenni.bsky.social · 26/09/2025
www.beinghumanfestival.org/events/missi... Volcanic crises! Archives! The ‘real story’ between the lines. We’re performing a ‘staged reading’ and exploring two crises on #montserrat - with two wonderful playwrights as part of #beinghumanfestival. Come see us in London and also 1/2
beinghumanfestival.org
Missives - London
A crisis unravelling in letters. Many enquiries have tried to ‘learn lessons’ from crises provoked by natural hazards. Often, disaster is rooted in the misfiring communication and stalled decision-mak...
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Thomas R. Walter @trwalter.bsky.social · 24/09/2025
New paper alert. Volcanic crisis reveals coupled magma system at Santorini and Kolumbo. Great work led by Marius and Jens, thanks all for working on that together! It can be found in today’s issue of Nature. www.nature.com/articles/s41...
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Univ. Bristol Volcanology Group @bristolvolcanology.bsky.social · 17/09/2025
We are advertising for a 3-year "Senior Research Associate in Volcanic Petrology and Stratigraphy". Part of a Leverhulme-funded interdisciplinary research grant "Volcanic Histories", focused on research in the Eastern Caribbean. Closing: October 15th www.bristol.ac.uk/jobs/find/de...
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PAGES (Past Global Changes) @pages-ipo.bsky.social · 17/09/2025
PAGES September newsletter is out! Find out what the 2k Network, CRIAS, Human Traces, PO2, SISAL and VICS working groups are up to, and much more on the paleoscience calendar! ℹ️ pastglobalchanges.org/news/138628 @pastoxygen.bsky.social
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Dr. Erik Klemetti Gonzalez @eruptions.site · 16/09/2025
I shared this earlier, but this is *exactly* the point I try to make whenever I get the question about "which volcano will be the next to have a big eruption?" It is rarely the ones that are in the headlines at the time.
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Mike Cassidy @mikevolc.bsky.social · 16/09/2025
🌋 Excited to share my new essay in Aeon: one of the most underappreciated global risks isn’t an asteroid or supervolcano—it’s the eruptions we don’t see coming:
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Mike Cassidy @mikevolc.bsky.social · 16/07/2025
We think applying to grad school should be free. App fees create barriers to equity in academia—especially in the US, where students can pay $1,000+ just to be considered. Even waivers don’t fix this. We make the case in our Nature piece: www.nature.com/articles/d41...
nature.com
It should be free to apply to graduate school
Letter to the Editor
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Mike Cassidy @mikevolc.bsky.social · 16/06/2025
SIgn up to our newsletter if you haven't already!
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Mike Cassidy @mikevolc.bsky.social · 29/05/2025
If anyone's going to the @undrr.bsky.social Global Platform for Disaster Risk Reduction in Geneva next week, please reach out. Several of us from the charity @gvra.bsky.social will be there and would be keen to chat about it!
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Mike Cassidy @mikevolc.bsky.social · 11/04/2025
The St Vincent eruption shows that preparedness and early anticipatory action can avert a volcanic disaster!
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Mike Cassidy @mikevolc.bsky.social · 17/02/2025
Now that it's thought the sesimic activity around Santorini is caused by magma, authorities plan an emergency port. Important to note that the vast proportion of magmatic unrest on volcanoes doesn't lead to eruptions, but preparation is key in cases where they might.
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Dr. Erik Klemetti Gonzalez @eruptions.site · 06/02/2025
It does look like the Washington VAAC (Volcanic Ash Advisory Center) is still up and issuing alerts, but if that stops ... ho boy, that could get messy. The VAAC is a NOAA operation.
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Jenni Barclay @volcanojenni.bsky.social · 03/02/2025
Did you know that several @iavcei.bsky.social AWARDS are open for nominations at the moment! Re-vamped instructions can be found here www.iavceivolcano.org/call-for-nom... Each nomination needs 1 lead and 3 supporters. LEAD must be IAVCEI member. Awards support different career stages! 🧵
iavceivolcano.org
Call for nominations for the 2025 IAVCEI awards
The call for nominations for the following 2025 IAVCEI medals and awards is now open: Nominations must be submitted by 7 March 2025 (midnight Central European Time) and sent to the IAVCEI secretariat…
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Dr. Samantha Montano @samlmontano.bsky.social · 04/02/2025
This effectively ends all nsf-funded disaster research.
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Global Volcano Risk Alliance @gvra.bsky.social · 15/01/2025
Today marks 3 years since the powerful eruption of the Hunga Tonga volcano that generated a tsunami that struck Tonga & severed communication lines. This eruption was a key motivator for the formation of GVRA & our co-founders @mikevolc.bsky.social & @laramani14.bsky.social spoke to DW about it:
dw.com
Hunga-Tonga volcano eruption sparks concern – DW – 07/02/2024
When underwater volcano Hunga Tonga-Hunga Ha'apai erupted in the South Pacific in 2022 researchers were alarmed. The are now calling for closer volcano monitoring.
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Gavin Foster @thefosterlab.bsky.social · 14/01/2025
Do you have a burning question about Earth Sciences? Well Nature reviews earth and environment just launched "Ask and Expert": www.nature.com/articles/s43.... Just fill in this form forms.office.com/Pages/Respon... 🧪⚒️🌊
nature.com
Introducing ‘Ask an Expert’ - Nature Reviews Earth & Environment
Nature Reviews Earth & Environment is pleased to launch a new article type — Ask an Expert — that offers the public an opportunity to have their burning questions about Earth science answered.
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Centre for the Study of Existential Risk @cser.bsky.social · 07/01/2025
Curious about the types of topics covered in the MPhil in Global Risk and Resilience? Explore the links below to learn more about Environmental Risk: ⬇️
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Global Volcano Risk Alliance @gvra.bsky.social · 20/12/2024
We wanted to end the year with a big thank you to everyone for their wonderful support this year, and to wish you all a restful festive season! We're really excited for 2025 and look forward to engaging with you all in the New Year! 🌋🎁🎄
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VMSG @vmsg.bsky.social · 18/12/2024
We have now created our VMSG starter pack, feel free to share amongst your networks & keep adding your suggestions for students, staff & alumni to include!
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Jenni Barclay @volcanojenni.bsky.social · 17/12/2024
Shout out to our @vmsg.bsky.social community! With the fabulous annual meeting coming up after 🎄🎄Time to make a vmsg starter pack! Reply if you would like to join! 😊
media.tenor.com
a black and white photo of a volcano erupting with the words `` i lava you '' .
Alt: a black and white photo of a volcano erupting with the words `` i lava you '' .
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Gavin Foster @thefosterlab.bsky.social · 28/11/2024
Another example why the world needs more geologists and geoscientists. Another route for geology to save the world and a great way to make a job market for those leaving the oil and gas industry 🧪⚒️ www.nature.com/articles/d41...
nature.com
Geothermal power is vying to be a major player in the world’s clean-energy future
With technical advances and enthusiasm from policymakers, advocates say the time for next-generation geothermal has come.
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Mike Cassidy @mikevolc.bsky.social · 21/11/2024
@laramani14.bsky.social and I in today's @economist.com highlighting the implausible-sounding yet real risk from large volcanic eruptions.
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Global Volcano Risk Alliance @gvra.bsky.social · 13/11/2024
It's great to see more scientists agree with our mission for global volcano preparedness. This is a really important and insightful read for all:
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🇺🇦 @aireseo.bsky.social · 13/11/2024
#volcano #lewotobi True-colour loop of the ash plume from Indonesia’s Laki-Laki Lewotobi eruption today 13Nov 2024. Some Australia-Bali flights cancelled. Data courtesy JMA/JAXA @volcaholic1.bsky.social @volcanologist.bsky.social @simoncarn.bsky.social
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Mike Cassidy @mikevolc.bsky.social · 12/11/2024
Here's me and @laramani14.bsky.social on German news @dwnewstoday.bsky.social talking about the neglected state of Global Volcanic Risk:
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Henning @geohenning.bsky.social · 07/11/2024
The Lewotobi volcano activity remains high. Tonight there has been another high-magnitude eruption at 02:41 WITA from the northwest summit vent. Explosions continue, with ash columns up to 15.2 km high. ⚒️ 🌋 www.volcanodiscovery.com/lewotobi/new...
Photo of Lewotobi volcano at day. Volcano is not visible because of a dense light gray to gray ash cloud rising into the sky.
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Lara Mani @laramani14.bsky.social · 23/10/2024
Excited to finally share what @mikevolc.bsky.social & I have been working on for the past few years. We're extremely passionate about this mission & grateful for all the support we've received. But, there's so much to do & it needs all of us - so follow us to see how you can get involved! 🌋
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Matt Pritchard @mattepritchard.bsky.social · 23/10/2024
I am glad to serve on the Scientific Advisory Board for the Global Volcano Risk Alliance to help people arounid the world prepare for impactful eruptions. The 2022 Hunga Tonga Hunga Ha'apai eruption was a wake-up call we need to heed. www.globalvolcanoriskalliance.com/home
globalvolcanoriskalliance.com
Global Volcano Risk Alliance
Volcanoes pose globally catastrophic threats to society through their multi-hazard impacts that can alter the Earth's climate and disrupt our global critical systems. The direct and indirect impacts t...
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David Pyle @davidmpyle.bsky.social · 03/10/2024
Are you ready? The IF Oxford science and ideas festival starts this weekend; a community festival with over 100 events across the next 3 weeks. Take a look at the programme - there’s something for everyone! if-oxford.com/events/
Yellow volunteer T-shirt ready to be ironed in preparation for the  IF Oxford science and ideas festival ‘here to help’
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Gavin Foster @thefosterlab.bsky.social · 26/09/2024
www.nature.com/articles/d41... 🧪
nature.com
Universities are not just businesses, but an investment in future generations
Many UK universities are in a financial crisis. But the government is leaving them to flounder, treating higher education as a private-sector industry and research as a public investment. Many UK univ...
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Jenni Barclay @volcanojenni.bsky.social · 10/09/2024
🌋-ology is a subject dominated by 🌋! Those volcanoes are found in countries 🌍🌎🌏 But knowledge is disproportionately shared from Europe, North America, New Zealand and Japan, where only some of 🌋are found. We need to get better at collaboration and inclusion . 🍀 New papers reflect on this 1/4
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Mike Cassidy @mikevolc.bsky.social · 13/11/2023
New paper: Led by newly-awarded Dr, Anna Brookfield (& her first paper!): 'Magmatic volatile content and the overpressure ‘sweet spot’: implications for volcanic eruption triggering and style': authors.elsevier.com/a/1i2ys1LkU3...
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Mike Cassidy @mikevolc.bsky.social · 20/10/2023
NEW Open Acess paper🚨🌋: Lara Mani & I teamed up with ethicist Anders Sandberg to write 'The ethics of Volcano Geoengineering': shorturl.at/DXYZ5 published in Earth's Future.
shorturl.at
https://shorturl.at/DXYZ5
Wiley Online Library requires cookies for authentication and use of other site features; therefore, cookies must be enabled to browse the site. Detailed information on how Wiley uses cookies can be fo...
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Mike Cassidy @mikevolc.bsky.social · 11/10/2023
Thanks Pete!
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Pete Rowley @pyroclasticpete.bsky.social · 11/10/2023
Welcome @mikevolc.bsky.social everyone - large scale volcanism is his thing, and now Bluesky is too.
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