iiinova — where your digital self keeps evolving

Reposted by James Dalziel

Dr. Wendy Bohon @drwendyrocks.bsky.social · 03/09/2026

Have you seen the @sfchronicle.com article “New calculations raise the odds of a major Bay Area earthquake”? Here’s my hot take. 🔥 Article 👉 www.sfchronicle.com/bayarea/arti...

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James Dalziel @j-dalziel.bsky.social · 02/09/2026

With the recent spate of large-magnitude earthquakes that have had noticeable impacts on the local area, it's an interesting question to pose if, & if so why, earthquakes are becoming more common. Here's what the data says: theconversation.com/are-earthqua...

theconversation.com

Are earthquakes becoming more common? Here’s what the numbers say

Scientists have been able to catalogue the largest earthquakes for a very long time.

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James Dalziel @j-dalziel.bsky.social · 26/02/2026

I recently published the pre-print for a paper based on my MRes thesis at the University of Bristol, ahead of submitting for peer review: "Seismic Efficiency during Volcanic Unrest: Insights from the 2010 Eyjafjallajökull Eruption". Available here: doi.org/10.31223/X52...

doi.org

Seismic Efficiency during Volcanic Unrest: Insights from the 2010 Eyjafjallajökull Eruption

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James Dalziel @j-dalziel.bsky.social · 14/01/2026

The (Re)Insurance-Academia Global Earthquake (RIAGE) workshop will be held at UCL, May 18-19 & is free to attend, in-person spaces limited but online also available. Opportunities to submit abstracts for oral/poster presentations across 6 thematic sessions. Details & registration here:

ucl.ac.uk

First RIAGE — (Re)Insurance-Academia Global Earthquake Workshop

The first RIAGE Workshop is a space for academics and industry experts to explore cutting‑edge earthquake risk research, CAT modelling, and resilience strategies for global insurance.

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James Dalziel @j-dalziel.bsky.social · 12/01/2026

In the first of many conferences for this year (more on that soon), I really enjoyed attending & presenting at the 2026 VMSG Annual Meeting. Interesting conversations about volcanic hazard management, climatic implications, science communication & insurance. Plus a Lancaster volcanology reunion!

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James Dalziel @j-dalziel.bsky.social · 19/12/2025

Given the degree of aerosols ejected from the 2022 Tonga eruption, this report gives detailed findings on the resulting atmospheric impacts. It shows a small but measurable cooling effect, resulting in a surface temperature change x10 smaller than Pinatubo 1991.

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Reposted by James Dalziel

British Geological Survey @bgs.ac.uk · 19/12/2025

Malaysia faces substantial risks from rainfall-triggered landslides driven by extreme meteorological conditions. BGS has been awarded funding to support the country's climate resilience plan, focusing on minimising economic & social impacts from these hazard events. www.bgs.ac.uk/news/bgs-awa...

Cliff face stabilised with rock bolts and rock netting following rockfall adjacent to a residential apartment block in Kuala Lumpur. This is one of hundreds of critical slopes monitored by the Department of Mineral and Geoscience in Malaysia. On the left of the image is a large pylon and in the centre is a road with a small red digger on the left. To each side of the photo is a large hill covered in foliage.

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Reposted by James Dalziel

Dr. Wendy Bohon @drwendyrocks.bsky.social · 08/12/2025

M 7.6 earthquake 73 km ENE of Misawa, Japan earthquake.usgs.gov/earthquakes/...

Map showing the location of the earthquake offshore of northern Japan. The earthquake is marked by star. Concentric rings of different colors show the level of shaking generated by the earthquake.

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Reposted by James Dalziel

Dr. Judith Hubbard @judithgeology.bsky.social · 08/12/2025

Here is the latest tsunami information for the M7.6 earthquake that just struck offshore northern Japan. The warnings are for waves up to 3 m, but the highest waves measured so far are <0.5 m. It is still possible for larger waves to arrive. 1/2 www.jma.go.jp/bosai/map.ht... ⚒️ 🧪

Map showing tsunami warnings and measured wave heights for the 2025-12-09 M7.6 earthquake offshore Japan.

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Reposted by James Dalziel

Dr. Erik Klemetti Gonzalez @eruptions.site · 07/12/2025

Big week for webcams getting wiped out by volcanoes.

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James Dalziel @j-dalziel.bsky.social · 25/11/2025

This paper by Dervisi et al. is a fascinating development in the world of earthquake aftershock prediction. Past WRN research partnerships have looked at forecasting aftershock hazard based on strain rate data, so it'd be interesting to see how this ML model performs in comparison.

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Reposted by James Dalziel

Fumihiko Ikegami @fikgm.bsky.social · 10/11/2025

The underwater seismometer network is so great, as evidenced from yesterday's EQ off-Tohoku. Reposting unofficial visualization by x.com/kotoho76/sta...

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James Dalziel @j-dalziel.bsky.social · 09/10/2025

Seismologists & risk modellers are always aiming to better understand relationships between quakes on major faults. This Science article, based on Goldfinger et al. (2025), uses palaeoseismology to find possible stress triggering between the Cascadia subduction zone & northern San Andreas fault:

science.org

Big U.S. West Coast earthquakes could come as a one-two punch

Cascadia and San Andreas fault zones appear to generate synchronized earthquakes

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James Dalziel @j-dalziel.bsky.social · 30/09/2025

This brilliant initiative & resulting White Paper gives important insights into the geohazards affecting Indonesia, challenges & research priorities for better understanding of hazard, & recommended solutions to address challenges, strengthen resilience & improve disaster risk reduction.

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Reposted by James Dalziel

Kristen Cook @kristencook.bsky.social · 23/09/2025

The Matai’an landslide dam in eastern Taiwan has failed this afternoon (eos.org/thelandslide...), flooding Guangfu, about 15 km downstream focustaiwan.tw/society/2025.... Even in the middle of a typhoon, the resulting flood produced a detectable seismic signal at stations ~40 km away.

Seismic waveforms and power spectral density plots showing the signal of a landslide lake outburst flood.

Planet satellite image from August 2025 of a large landslide blocking a river and creating a lake.

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James Dalziel @j-dalziel.bsky.social · 24/09/2025

This article, based on a recent Seismological Research Letters paper from scientists at the Statewide California Earthquake Center (SCEC), examines occurrence of supershear earthquakes, the need for updated hazard planning & suitable building design to reflect risks: dornsife.usc.edu/news/stories...

dornsife.usc.edu

'Supershear' earthquakes a major threat to California, say scientists

USC Dornsife researchers say powerful, fast-moving quakes will strike the Golden State, urge stronger building codes and better monitoring

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Reposted by James Dalziel

Scott St. George @scottstgeorge.paleohydrology.com · 15/09/2025

Yet another Nat Cat job? Actually, we're searching for TWO experts, specialized in tropical cyclones or earthquakes. US or UK, remote work definitely an option. Great job for an ECR physical scientist looking to join the insurance/reinsurance industry! eedu.fa.em3.oraclecloud.com/hcmUI/Candid...

eedu.fa.em3.oraclecloud.com

Natural Catastrophe Analyst - Earthquake/Hurricane Specialist

An exciting opportunity to join an established research network team at Willis (a WTW business), helping clients understand and manage risk while shaping the Willis “view of risk.” Using your scientif...

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Reposted by James Dalziel

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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James Dalziel @j-dalziel.bsky.social · 15/08/2025

This paper by Meredith et al. (2025) examines global city exposure to volcanic hazards, using metrics such as population and distance to GVP Holocene volcanoes to quantify and rank cities at risk. This data has also been visualised through a web app. nhess.copernicus.org/articles/25/...

nhess.copernicus.org

Cities near volcanoes: which cities are most exposed to volcanic hazards?

Abstract. Cities near volcanoes expose dense concentrations of people, buildings, and infrastructure to volcanic hazards. Identifying cities globally that are exposed to volcanic hazards helps guide l...

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Reposted by James Dalziel

Jascha Polet @jascha.bsky.social · 31/07/2025

Just to illustrate how long waves from a #tsunami can keep going, this is a tide gauge record from Crescent City CA (known for its sensitivity to tsunami waves due to bathymetric and resonance effects) showing significant wave activity still continues 24+ hours after their first arrival. 🧪⚒️

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Reposted by James Dalziel

British Geological Survey @bgs.ac.uk · 31/07/2025

Kamchatka earthquake highlights the advances in tsunami early warning systems 🌊 🛰️ BGS Prof David Tappin, Marine Geologist & tsunami expert explains how the Kamchatka event highlighted the improved mitigation measures now in place. www.bgs.ac.uk/news/kamchat...

A National Oceanic & Atmospheric Administration (NOAA) diagram illustrating how tsunami wave information in the deep ocean is transmitted to tsunami warning centers (right)

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James Dalziel @j-dalziel.bsky.social · 03/07/2025

This article, based on Yanites et al. (2025) in Science, discusses how hazardous events such as earthquakes, wildfires, & storms accelerate erosion & sediment transport, increasing sensitivity & risk of cascading hazards such as landslides & floods: theconversation.com/hurricane-he...

theconversation.com

Hurricane Helene set up future disasters, from landslides to flooding – cascading hazards like these are now upending risk models

Risk models can’t rely just on the past anymore. A team of geoscientists suggests new ways to forecast evolving hazards in real time as cascading disaster risk worsens.

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Reposted by James Dalziel

John Cassidy @earthquakeguy.bsky.social · 22/06/2025

Earthquakes in eastern #Canada? June 23, 2010 - a damaging M5 #earthquake in western Québec was felt in Ontario, #Québec and as far away as Washington DC. It triggered landslides and produced the strongest shaking ever felt in #Ottawa (~60 km away): earthquakescanada.nrcan.gc.ca/pprs-pprp/pu... ⚒️🧪

Maps showing how the June 23, 2010 M5 earthquake near Val des Bois, Quebec, was felt across eastern North America (to a distance of nearly 1000 km). Map on the right is a closeup of felt shaking reports from the epicentral region where some damage occurred and landslides were triggered.

Photo of a red barn that was impacted by a landslide following a M5 earthquake in Quebec. Brown soils outline the landslide, with green grassy fields and trees in the background.

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James Dalziel @j-dalziel.bsky.social · 19/06/2025

On 17-18th June, explosive eruptions at Mt. Lewotobi Laki-Laki on the Indonesian island of Flores sent ash >11.5km above sea level. This highlights volcanic hazards on varying scales; pyroclastic flows & lahars threatening local communities, & ash leading to flight cancellations & delays.

theguardian.com

Bali flights cancelled after Indonesian volcano spews 10km-high ash tower

Mount Lewotobi Laki-Laki on the island of Flores, east of Bali, erupted on Tuesday afternoon, leading to several airlines cancelling flights

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Reposted by James Dalziel

Dr. Erik Klemetti Gonzalez @eruptions.site · 02/06/2025

The VAAC report for the Etna eruption today mentions a plume reaching 6,500 m / ~21,000 feet.

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Reposted by James Dalziel

Jascha Polet @jascha.bsky.social · 02/06/2025

Pyroclastic flows at Etna have been confirmed by INGV ⚒️🌋

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Reposted by James Dalziel

Mojtaba Rajabi @geostress.bsky.social · 21/05/2025

Pleased to announce the 4th major release of the @wsmproject.bsky.social, the biggest update of the database since the project began. With thousands of new data, the 2025 WSM brings the most comprehensive picture yet of Earth's present-day stress field. #Geomechanics W: www.world-stress-map.org

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Reposted by James Dalziel

Dave Petley @davepetley.bsky.social · 22/05/2025

On 21 May 2025, a house was destroyed by a dramatic quick clay landslide at Sainte Monique in Quebec, Canada. Fortunately, no-one was killed:- eos.org/thelandslide... There is also excellent drone footage of the aftermath on Youtube, posted by Radio-Canada Info:- www.youtube.com/watch?v=G4JB...

Google Earth image of the site of the 21 May 2025 quick clay landslide at Sainte Monique in Canada.

A drone image of the site of the 21 May 2025 quick clay landslide at Sainte Monique in Canada. Still from a drobe video posted to Youtube by Radio-Canada Info.

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Reposted by James Dalziel

Copernicus ECMWF @copernicusecmwf.bsky.social · 16/05/2025

In 2024, Europe saw average to slightly above-average fire danger for most of the year, with the highest values in September. Around 110,000 hectares burnt in Portugal that month, accounting for around a quarter of the overall total burnt area in Europe for the year. bit.ly/4ctJySA #ESOTC2024 #C3S

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Reposted by James Dalziel

Henning @geohenning.bsky.social · 15/05/2025

This is a photo of the surface rupture we saw in the webcam footage of the Myanmar #earthquake. The webcam was positioned on the opposite side behind the gate. Source is the YouTube channel that also posted the footage. 🧪⚒️ youtube.com/@sagaingeart...

Photo of a road, the asphalt is torn apart and cracked from the bottom of the image into the distance. This is a result of an earthquake surface rupture. The road leads to a gate with white walls and some grass in front of it. Overcast sky.

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James Dalziel @j-dalziel.bsky.social · 14/05/2025

Incredible footage of sudden ground displacement from the recent Myanmar earthquake. It took me a few watches to understand & believe what I was seeing!

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Reposted by James Dalziel

UK COMET @uk-comet.bsky.social · 28/04/2025

We hope everyone attending European Geosciences Union (EGU) 2025 has a fantastic week and don't miss the following COMET talks and posters. You can check out the full hashtag#EGU25 programme on the EGU website www.egu25.eu

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Reposted by James Dalziel

British Geological Survey @bgs.ac.uk · 23/04/2025

SEISMIC INFORMATION : SEA OF MARMARA (WESTERN TURKEY) 23 APRIL 2025 09:49 The following preliminary information is available for this earthquake: LAT/LONG : 40.840° North / 28.142° East DEPTH : 10 km MAGNITUDE : 6.2 Mw LOCALITY : Sea of Marmara, 75 km west of Istanbul, Turkey

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Reposted by James Dalziel

Stormrider @kwh.bsky.social · 15/04/2025

USGS provides interactive ground motion maps for 14 earthquake scenarios on the Elsinore fault, ranging from M 6.8 to M 7.7 (many combinations of different fault sections) so you can see what shaking it is capable of producing in the future earthquake.usgs.gov/scenarios/ca...

earthquake.usgs.gov

BSSC2014 (Scenario Catalog)

USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards

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Reposted by James Dalziel

Scripps Institution of Oceanography @scrippsocean.bsky.social · 15/04/2025

🫨 Yeah, we felt it, too. Today's #earthquake occurred near the Elsinore Fault Zone and reached a magnitude of 5.2, according to scientists with @igpp-sio.bsky.social. You can view the seismic wavefield animation by Scripps Oceanography PhD candidate John Rekoske.

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Reposted by James Dalziel

Stephen Hicks @seismo-steve.bsky.social · 31/03/2025

Friday's M7.7 Mandalay, Myanmar earthquake - do we need to rethink earthquake hazard models? A little summary and discussion - hopefully in relative simple terms - by me, over on LinkedIn: www.linkedin.com/posts/sphick...

linkedin.com

Friday's M7.7 Mandalay, Myanmar earthquake - do we need to rethink… | Stephen Hicks

Friday's M7.7 Mandalay, Myanmar earthquake - do we need to rethink earthquake hazard models? Hours after Friday's earthquake, media reports focussed on the…

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James Dalziel @j-dalziel.bsky.social · 28/03/2025

Although the effects of today's Sagaing quake are most severe in places like Mandalay, shaking in Bangkok may seem surprising given it's ~1000km from the epicentre. This is due to long period ground motion, amplified by a deep sedimentary basin comprised of soft alluvial clay. (1/2)

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Reposted by James Dalziel

Anthony Lomax @alomaxnet.bsky.social · 03/03/2025

NLL-SSST-coherence high-precision earthquake location catalog for the 2025 #Santorini #Amorgos #earthquake swarm. Based on data from Institute of Geodynamics of the National Observatory of Athens (NOA-IG). Download & details: doi.org/10.5281/zeno...

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Kristín Jónsdóttir @krjonsdottir.bsky.social · 26/02/2025

IMO's models suggest the volume of magma accumulated beneath Svartsengi has exceeded the amount present before the eruption that began on November 20, 2024. It is anticipated that an eruption may start in Sundhnúksgígaröð with very short warning. Below latest IMO news:

en.vedur.is

Increased likelihood of an eruption on the Sundhnúkur crater row | News | Icelandic Meteorological office

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James Dalziel @j-dalziel.bsky.social · 10/02/2025

With geoscientists keeping a close eye on the seismicity around Santorini over the past couple of weeks, this work by the BGS using machine learning to enhance detection & short-term forecasting for advising emergency services & at-risk communities is fascinating: www.bgs.ac.uk/news/artific...

bgs.ac.uk

Artificial intelligence is proving a game changer in tracking the Santorini earthquake swarm - British Geological Survey

An online tool that shows which roads are most likely to cause river pollution is being expanded to assess pollution from agricultural areas.

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James Dalziel @j-dalziel.bsky.social · 07/02/2025

A brilliant and comprehensive record of the volcanoes dotted around Europe, complete with their various characteristics and unique hazards to be aware of.

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Reposted by James Dalziel

Jorge Ginés 🎃👻🇪🇺 🌍🛰️ @lithospheric.jorgegines.com · 31/01/2025

NASA's UAVSAR radar has detected that parts of the Palos Verdes Peninsula in Los Angeles County are sliding toward the ocean at rates up to 10 cm per week, following heavy rainfall in 2023 and 2024. ⚒️🧪 #geology #geohazards #remotesensing

nasa.gov

NASA Radar Imagery Reveals Details About Los Angeles-Area Landslides - NASA

Analysis of data from NASA radar aboard an airplane shows that the decades-old active landslide area on the Palos Verdes Peninsula has expanded.

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Reposted by James Dalziel

Adam Pascale @seislologist.bsky.social · 30/01/2025

For context, Geoscience Australia have updated their NSHA (National Seismic Hazard Assessment) Map, and two areas have been classified as higher hazard than the previous map from 5 years earlier. These areas don't suddenly have a higher chance of earthquake activity. Hazard ratings aren't prediction

abc.net.au

Geoscience Australia releases high-risk updated earthquake zones

Geoscience Australia says Darwin and the Latrobe Valley are more likely to experience "strong ground shaking". The latter is among the sites the Coalition has identified as a potential home for a nucl...

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Reposted by James Dalziel

Dave Petley @davepetley.bsky.social · 28/01/2025

A new paper in the journal Landslides (Li et al. 2025) explores a large landslide at the Xinjing open-pit coal mine in Inner Mongolia, which killed 53 people. It shows that measurable movement was occurring 18 months before the collapse. eos.org/thelandslide... Image by Planet Labs.

SkySat image of the 23 February 2023 coal mine landslide at the Xinjing open-pit coal mine in Inner Mongolia, China. It shows a large failure in the side of the pit, with debris clogging the floor of the mine.
Image copyright Planet Labs, used with permission.

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Reposted by James Dalziel

Dr. Wendy Bohon @drwendyrocks.bsky.social · 16/01/2025

“After a wildfire, the hazard to the public is not over,” said Jeremy Lancaster, California’s state geologist. …The two major hazards after a wildfire are flash flooding and post-fire debris flows.” www.nytimes.com/2025/01/16/c...

nytimes.com

The Next Threat to L.A.? Rainfall That Could Cause Landslides

While firefighters begin containing the Los Angeles wildfires, the land left behind is at a higher risk of floods and debris flows.

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