Edwin Nissen

February 21, 1993, died on this day aged 105 years, Danish seismologist Inge Lehman.
She discovered that the Earth has a inner core announcing it in 1936 with the shortest title for a paper ever: P' - after the seismic discontinuity between core and mantle shown by the P-waves

The Department of Earth Sciences and St Peter's College are recruiting an Associate Professor (or Professor) in Earth Surface Processes to join our thriving academic community!

earth.web.ox.ac.uk/vacancies

A thread for the 15-year anniversary of the 2011 Christchurch earthquake. I won’t have a chance to post it on the day, so I’m doing it a couple days early. Note that the work I’m posting was carried out by many brilliant people. 1/

The Archers. It’s been running since 1951 and is past 20,000 episodes

⚒️🧪 friends, let's make sure @agu.org knows we all want them to get completely off the Nazi cesspool. 3...2...1....go! (that means like and reskeet this!)

@agucryo.bsky.social @agu-h3s.bsky.social @aguseismology.bsky.social @agucatchhydro.bsky.social @aguscipolicy.bsky.social @gec-agu.bsky.social

The inevitable Keely Hodgkinson–Femke Bol showdown is going to be spectacular!

Better still, tax profits from property sales like most other countries do (heck even the US). Time to tax unearned income, not just earned income

Yeah I meant taking the burden off grad students who have enough on their plate. Agree that senior PhDs should be reviewing too though

Grad student-led papers should be included too

⚒️🧪Fiery Mud Volcano Eruption!

The Daşmərdan (Dashmardan) mud volcano in Azerbaijan erupted ~16:50 on the 30th Jan 2026. The eruption lasted ~15 mins and was accompanied by a pillar of flame several hundred meters high. Daşmərdan had previous documented eruptions in 1866, 1954, 1976, 1986 and 2011.

Try eating a little less meat. Pretty sure all of those animals were raised in cramped, cruel conditions, and yet you complain about a few extra dollars from your wallet?

The lack of obvious internal deformation *within* the landslide is amazing. Must be a very simple failure plane?

This is great. That orange crosswalk is ^so^ dangerous. I once saw a driver blast through while a pedestrian was mid way across, missing causing a fatality by inches.

Colourful map showing the tectonic plates of the Cascadia subduction zone from Northern California to northern Vancouver Island.

Cartoon map showing the tectonic setting of the Cascadia subduction zone, where the Juan de Fuca plate slips beneath the North American Plate from California to northern Vancouver Island.

326 years ago tonight (9 p.m. Jan. 26, 1700) a M~9 Cascadia subduction earthquake rocked the west coast from #VancouverIsland to northern California. The Juan de Fuca Plate slipped up to 20 m, causing a large tsunami, strong shaking and landslides
www.earthquakescanada.nrcan.gc.ca/historic-his...
⚒️🧪

“Christian” Noem most definitely requires inverted commas

Thank you Dave and Victoria Council for making such great progress on safe cycling infrastructure across YYJ. There’s still a long way to go but it is truly appreciated 🙏

B.C. has seen a lake tsunami before — and it could happen again | CBC News In 2007, a massive landslide crashed into B.C.'s Lake Chehalis, triggering a tsunami that surged 38 metres up the shore — one of the most dramatic inland waves ever recorded. CBC’s Johanna Wagstaffe l...

Exciting to see lake tsunami research in the spotlight! I joined CBC to talk about our work at Chehalis Lake and how we can go about better understanding lake tsunami hazard here in BC. #Geohazards #LakeTsunami #ScienceCommunication

Learn more about the Dec 2025 M7 Hubbard Glacier Earthquake and landslides with AEC Director Michael West and USGS Landslide Specialist Kate Allstadt on Feb. 5, 12-1 pm Pac Time. Register here: my.eeri.org/events/event...

NISAR Sample Data Products Available | NASA Earthdata NISAR L-band data products are now available, giving users a first look at data products from NISAR acquisitions.

Sample data from the NASA-ISRO SAR (NISAR) L-band imaging radar is now available from the NASA EarthData system. These are preliminary products with some caveats but include an interferogram for the November 2025 volcanic eruption in Ethiopia. www.earthdata.nasa.gov/news/nisar-s...

Cat wandered in front of the camera during the #aurora long exposure

Dr. Gladys West, Mathematician Whose Work Made GPS Possible, Dies at 95 ALEXANDRIA, VA — Dr. Gladys West, the pioneering mathematician whose work laid the foundation for modern GPS technology, has died. She passed away

Dr. Gladys West, the pioneering mathematician whose work laid the foundation for modern GPS technology, has died. She was 95.

One of my favourite trivia questions is how many (or which) countries Canada shares a land border with. Maybe it’ll be more than two soon, given the damage being done to the union…

Very interesting! This seems to match @ezgikarasozen.bsky.social’s relocated EQ catalogue which shows scattered seismicity right along the coastline and in a few places just offshore. Fortunately there shouldn’t be much of a tsunami hazard as the faults are buried and earthquakes mostly M6 or less.

Yay! Now for the parking lots along Wharf St. The inner waterfront should for all to enjoy, not just parked cars. Are there any plans to improve this area too?

Will Greaves (@wgreaves.bsky.social) Poli sci prof, local dad, lucky guy. Member of Parliament for Victoria. Global and Canadian politics, Arctic, climate, people, jokes. https://willgreaves.ca/

Hey @wgreaves.bsky.social I get that the wheels of power move slowly but can the Govt of Canada please stop using the child abuse imagery generator X?

Ice are the ultimate snowflakes

Poor souls, hard to think of a worse way to go 💔

Many congratulations Paula, this is wonderful news!

Pretty sure half their subscribers are only in it for the Wordle nowadays

Rock avalanche below Mt King George triggered by the 6 December 2025 Hubbard Glacier Earthquake. The runout distance is 1.4 km.

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...