Edwin Nissen
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faultydata.bsky.social
Edwin Nissen
@faultydata.bsky.social
2K followers 310 following 120 posts
Professor/Canada Research Chair in seismology in Victoria BC 🇨🇦. Earthquakes, active tectonics, remote sensing. Proud cat dad.
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Reposted by Edwin Nissen
davepetley.bsky.social
A sensational guest post by Derek Cronmiller, Theron Finley Panya Lipovsky and Jan Dettmer of the Yukon Geological Survey: Photos and Preliminary Observations from an Overview Flight of the 6 December 2025 Hubbard Glacier Earthquake, Yukon Territory, Canada.
eos.org/thelandslide...
Rock avalanche below Mt King George triggered by the 6 December 2025 Hubbard Glacier Earthquake. The runout distance is 1.4 km.
January 5, 2026 at 7:36 AM
faultydata.bsky.social
@overleaf.com is a prime example of AI enshittification. With its new AI tools (that no-one asked for) slowing the website down, I have to wait thirty seconds for the text & cursor to catch up after every sentence I write. 🤦‍♂️ If it ain’t broke, etc. etc. #AcademicSky #Research #HigherEd
December 30, 2025 at 5:48 PM
faultydata.bsky.social
⛏️🌋 Dreamy views of the Cascade volcanoes this weekend from the southern tip of Vancouver island: that’s Mt Baker looming behind Victoria, and Glacier Peak poking through the clouds behind Race Rocks
Mt Baker, a conical stratovolcano, with Victoria and the Salish Sea in the foreground Glacier Peak, with Race Rocks lighthouse in the foreground
December 29, 2025 at 5:44 PM
Reposted by Edwin Nissen
watershedlab.bsky.social
On FB, Yukon Geological Survey posted some spectacular photos of landslides & snow avalanches triggered by the magnitude 7.0 earthquake on Dec 6 in the St Elias Mountains. Here are some of my favs. @geocron.bsky.social @theronfinley.bsky.social @davepetley.bsky.social @ksvenenvig.bsky.social 🧪⚒️
Landslides on the arete between Mt Vancouver and Mt Logan. Elevation difference between the central peak and the glacier is 500 m. Large landslides on the southwest side of Mt King George. The main debris lobe on the right is approximately 1000 m wide. The elevation difference between the peak and glacier is approximately 1900 m. Landslides on the west side of Mt King George. The central debris lobe is 500 m wide. Large landslide on the southwest side of Mt King George. The main debris lobe is 1800 m wide, and material traveled approximately 6 km from the source area.
December 15, 2025 at 10:44 PM
Reposted by Edwin Nissen
oxuniearthsci.bsky.social
New fully-funded DPhil project with Professor Richard Walker (@richardthomasw.bsky.social) researching the extent, timing, and cause of Quaternary uplift along the Atlantic margin of Morocco!

For more information visit our website
www.earth.ox.ac.uk/extent-timin...
Extent, timing, and cause of Quaternary uplift along the Atlantic margin of Morocco
Primary Supervisor: Richard Walker
www.earth.ox.ac.uk
December 11, 2025 at 10:00 AM
Reposted by Edwin Nissen
earthquakeandrew.bsky.social
A follow up with another few days of events. Now relocations of almost 600 earthquakes. These preliminary results suggest the main shock lies on a different fault a km or so SW, with most aftershocks tracing the possible Totschunda-Fairweather Connector Fault. Thoughts, @julieelliott.bsky.social?
December 10, 2025 at 7:38 AM
Reposted by Edwin Nissen
earthquakeandrew.bsky.social
Very preliminary relocation results from the December 6th #Alaska - #Yukon #earthquake, The Hubbard Glacier Earthquake. Double difference locations (343) derived from catalog epicentres (372), both manual and automatic. Squares are catalog epicentres, circles are relocations.
December 8, 2025 at 7:38 AM
Reposted by Edwin Nissen
theronfinley.bsky.social
I was on CBC's Yukon Morning today speaking about Saturday's Hubbard Glacier M7.0 earthquake and its aftershocks.

Coincidentally, I got an audible alert on my phone for the M7.6 earthquake in Japan while we were on air!

www.cbc.ca/listen/live-...
www.cbc.ca
December 8, 2025 at 4:45 PM
faultydata.bsky.social
My take on why the proposed northern pipeline is incredibly risky without 1st doing some basic geological due diligence. BC’s N Coast & interior are criss-crossed with faults but seismic & geodetic monitoring is rudimentary and we simply don’t know what’s active.
www.theguardian.com/world/2025/d...
‘There’s no monitoring of earthquakes’: new British Columbia pipeline could spell catastrophe, experts warn
Project on ‘very poorly understood’ terrain and likely to pass through Rocky Mountain trench, which researchers say poses immense geological hazard
www.theguardian.com
December 3, 2025 at 11:56 PM
Reposted by Edwin Nissen
watershedlab.bsky.social
Today in @theguardian.com from @leylandcecco.bsky.social: "‘There’s no monitoring of earthquakes’: new BC pipeline could spell catastrophe, experts warn" w/ @faultydata.bsky.social & I on geophysical unknowns @mark-carney.bsky.social @davidebybc.bsky.social 🧪⚒️

www.theguardian.com/world/2025/d...
‘There’s no monitoring of earthquakes’: new British Columbia pipeline could spell catastrophe, experts warn
Project on ‘very poorly understood’ terrain and likely to pass through Rocky Mountain trench, which researchers say poses immense geological hazard
www.theguardian.com
December 3, 2025 at 12:58 PM
Reposted by Edwin Nissen
allochthonous.bsky.social
⚒️ Here's a worthy geoheritage cause; the Scottish Geology Trust is running a crowdfunding campaign for a "Deep Time Trail" at Siccar Point ahead of the 300th anniversary of James Hutton's Birth next year. 4 days left to contribute!
Building the James Hutton Deep Time Trail
We are raising vital funds for a new Deep Time Trail at Siccar Point to celebrate the life and legacy of James Hutton for his Tercentenary.
www.crowdfunder.co.uk
November 26, 2025 at 1:20 PM
Reposted by Edwin Nissen
watershedlab.bsky.social
I wrote about the under-appreciated hazard of landslide-triggered tsunamis, which need serious consideration in discussions of new pipelines from Alberta 🧪⚒️
@theglobeandmail.com @davidebybc.bsky.social @natural-resources.canada.ca @mark-carney.bsky.social @ucalgaryscience.bsky.social
New northwest pipeline risks hazard of landslide tsunamis
Major Projects Office needs to be wary in its planning for pipeline projects to tidewater
www.theglobeandmail.com
November 19, 2025 at 5:26 PM
Reposted by Edwin Nissen
drlauragregory.bsky.social
Fieldwork, labwork, earthquakes and more!! Get in touch if you're interested in doing a PhD with me @earthandenvleeds.bsky.social
Please share, and check out details here: yes-dtn.ac.uk/research/the...
The inner workings of the earthquake cycle: New insight from integrating Quaternary fault activity, microstructures, and geophysics - Yorkshire Environmental Sciences • Doctoral Training Network
Summary Fault activity is now known to be highly dynamic, with observable spatial and temporal variability in earthquake recurrence and the style of fault slip. This exciting project explores the unde...
yes-dtn.ac.uk
November 18, 2025 at 10:22 AM
Reposted by Edwin Nissen
tyolsen.bsky.social
STORY: 4 years after the 2021 floods and landslides, major promises linger. There is no federal money to stop a future Nooksack Flood of Sumas Prairie. There is no national flood insurance program. And BC's new Flood Strategy lacks the funding to actually see it through.
thetyee.ca/News/2025/11...
BC’s Flood Prevention Promises Remain Unfulfilled | The Tyee
After the 2021 atmospheric river, governments preached averting over recovery. Locals remember. Do politicians?
thetyee.ca
November 17, 2025 at 5:21 PM
faultydata.bsky.social
This is the view I woke up to (hungover) on the first day of the new millennium🇳🇵
profpaulbarrett.bsky.social Paul Barrett @profpaulbarrett.bsky.social · Nov 7
Sunrise on the Annapurna range
November 7, 2025 at 9:41 PM
Reposted by Edwin Nissen
rapbastardz.bsky.social
New ad dropped:
Trump standing looking indifferent while a man possibly dies next to him. A few bald men hold his legs up in the air as if he’s going to take a giant shit or give birth. Sure, maybe it’s to help the blood flow to his head faster. Either way, graphic reads “Trump care, concepts of a plan since 2015.”
November 6, 2025 at 6:25 PM
Reposted by Edwin Nissen
wukaimi.bsky.social
The Faculty of Chemistry and #EarthSciences @uni-jena.de currently has two #geojob openings for #professorships: (1) General #Geophysics and (2) Geographical #RemoteSensing / #Earth #Observation. www.nature.com/naturecareer... @dgg-news.bsky.social @dvgeo.bsky.social @dggv-1848.bsky.social
photographic view featuring the tower of the building of the Institute of Geosciences in Jena towards west. The institute is located on a Pleistocene strath terrace of the Saale river, c. 50 m above the city centre (feturing some skyscrapers in the middle of the photo). The forested plateau in the background of the photo is formed by mesas exposing Middle Triassic strata ('Muschelkalk'). Jena is a thriving university town offering very high living standards and a cool place to be ;-)
November 1, 2025 at 3:47 PM
Reposted by Edwin Nissen
earthquakeguy.bsky.social
Fish in the forest, seaweed in trees?
Yes - 13 years ago tonight, the M7.8 #HaidaGwaii earthquake generated the world's largest #tsunami of 2012. Runup to 13m in some inlets left seaweed in trees and fish in the forest. If you are near water and feel long and strong shaking, go to high ground.
🧪🌊⚒️
A photo of seaweed in trees and a GPS unit to measure the height above sea level. The seaweed in the trees was deposited by the October 27th, 2012 tsunami generated by an offshore M7.8 earthquake. GSC photo.
October 27, 2025 at 10:51 PM
Reposted by Edwin Nissen
schoolshake.bsky.social
Tuesday's 530am #earthquake was a well-timed follow-up to #ShakeOutBC. The early timing and quiet schools resulted in the event being nicely recorded on all #SchoolShake instruments. If you felt it, you can still report it here www.earthquakescanada.nrcan.gc.ca/dyfi-lavr/fo...
October 24, 2025 at 11:01 PM
Reposted by Edwin Nissen
drwendyrocks.bsky.social
Today marks 36 years since the devastating Loma Prieta earthquake in Northern California.

This video about that event starts with a baseball game, ends with a love story, and features both Jose Canseco and @haroldtobin.bsky.social 🧪

youtu.be/ReqW_Vsq_JM?...
M6.9 Loma Prieta earthquake
YouTube video by Dr. Wendy Rocks
youtu.be
October 17, 2025 at 3:33 PM
Reposted by Edwin Nissen
wukaimi.bsky.social
@sumikotsuka.bsky.social and I are looking for a postdoc (2 yrs) to work w/ us at @uni-jena.de and LIAG Hannover on constraining exhumation rates in #Albania using calcite/dolomite thermoluminescence thermochronology. www.structures.uni-jena.de/en/1012/open.... @paleoseismicity.bsky.social @dfg.de
Open Postdoc position
two-years full-time postdoc position open in our team, starting 1 January, 2026.
www.structures.uni-jena.de
October 17, 2025 at 8:10 PM
Reposted by Edwin Nissen
earthquakeguy.bsky.social
When #seismology meets #meteorology!
Ground shaking across #VancouverIsland is ramping up (but not felt) as the remnants of Tyhpoon Nakri approach the west coast.
The ground shaking started increasing just after midnight Pacific time (07:00 UTC on this figure) Oct. 17, as the storm gets closer.
⚒️🧪🌀🇨🇦
A plot of ground shaking on southern Vancouver Island over the past 24 hours (thanks to the IRIS Consortium: https://www.iris.edu/app/station_monitor/ Stronger ground shaking (not felt) is observed starting just after midnight (Pacific time) or 07:00 UTC as used on this plot, as the storm gets closer.
October 17, 2025 at 9:22 PM
faultydata.bsky.social
Spot the drone 👀 Our third visit to Quesnel BC where we’ve been mapping deformation of the aptly-named “Big Slide” using drone lidar. Last year, you could walk along that road! Expert piloting skills by @thatfaultguy.bsky.social
Photo from the top of a large landslide, where part of a road has fallen away. A tiny drone is (barely) visible in the sky above. Lots of fall foliage and Fraser River in the distance
October 8, 2025 at 3:53 AM
Reposted by Edwin Nissen
watershedlab.bsky.social
🚨FOUR tenure track positions in my dept @ucalgary.bsky.social @ucalgaryscience.bsky.social in applied & computational geophysics, subsurface geochemistry, sedimentary geology, and sustainable soil science. careers.ucalgary.ca/search/jobs?...

(please reskeet widely!) #academicsky 🧪⚒️🇨🇦
Opportunities matching 'earth'
Search 4 Careers available at University of Calgary.
careers.ucalgary.ca
October 3, 2025 at 5:57 PM
Reposted by Edwin Nissen
schoolshake.bsky.social
This mornings M3.0 felt earthquake near Duncan was well recorded on the #SchoolShake network. No damages expected, but a great reminder to be prepared.

Felt reports and details: www.earthquakescanada.nrcan.gc.ca/recent/2025/...
September 18, 2025 at 9:36 PM