Maureen Padden

Maureen Padden

@maureenpadden.bsky.social

McMasterU teaching professor interested in all things environmental and geological.

43 Followers 69 Following 1 Posts Joined Sep 2024
1 week ago

Pacific Ocean Floor by MARIE THARP, Bruce Heezan, and Heinrich Berann, *as published in* the National Geographic. There, fixed it.😉

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2 weeks ago
Map of South America showing how shaking from the 2010 M8.8 central Chile earthquake was experienced. The strongest shaking was in central Chile, but people in highrises as far away as Sao Paulo, Brazil felt gentle swaying (no damage).

DYK that the 2010 M8.8 Chile earthquake caused highrises in Sao Paulo, Brazil (~2900 km away) to sway? (no damage) earthquake.usgs.gov/earthquakes/...
In North America this suggests that a M9 Cascadia #earthquake could be felt (no damage) by people in highrises as distant as Toronto and Chicago.
⚒️🧪

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1 month ago

Geology in Wired!

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1 month ago
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Gladys Mae West obituary: mathematician who pioneered GPS technology She made key contributions to US cold-war science despite facing huge barriers as a Black woman.

No joke: I got angry hate mail today for writing an obituary of a Black woman scientist—because the person felt she did didn’t deserve the recognition.

Which just makes me want to share it again: www.nature.com/articles/d41...

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1 month ago
An oblique view of a glaciated landscape on Mars. A lobate valley glacier extends towards the viewer from a small valley, and terminates in a lobe. Flow-related structures are visible on the surface.

5 days left to apply for a postdoc job with me, working on Martian glaciation!

Advert: tinyurl.com/6rzzk5d4

Relevant for glaciologists, geomorphologists, ice flow modellers, GIS or deep learning folks.

Closes 19th Jan. Queries via email.

📸HiRISE / @theseaning.bsky.social

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2 months ago
Map of southwest Ontario showing how today's M2.0 earthquake was felt in various nearby communities.

And there it is… Canada’s first felt #earthquake of 2026 - in a region that doesn’t have earthquakes so often!
This M2.0 earthquake (at 11:19 EST today) occurred 32 km south of Windsor, #ON and was felt by many.
Details and to report shaking:
www.earthquakescanada.nrcan.gc.ca/recent/2026/...
⚒️🧪

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2 months ago

The School of Earth, Environment and Society (SEES) at McMaster is particularly interested in applications from experts in Al, environmental science, climate resilience, and/or Arctic studies. If this aligns with your expertise, we would love to hear from you!

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2 months ago

These chairs offer $1 million per year for full professors or $500,000 per year for associate professors, over eight years.

McMaster is seeking many scholars with ambitious research programs that tackle emerging global and national challenges in many disciplines.

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2 months ago
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Canada Impact+ Research Chairs Nominees - Research & Innovation [...]Read More...

McMaster University is inviting top-tier researchers currently working abroad to join one of the world's leading research institutions through the prestigious Canada Impact+Research Chairs program.

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research.mcmaster.ca/home/support...

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2 months ago
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Bedmap - Ever wondered what the land underneath the frozen ice of Antarctica looks like? We released the most detailed map of Antarctica's hidden landscape, revealing ice up to 4,757m thick and filling major knowledge gaps across the continent.

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2 months ago
A row of small glass bottles shaped like maple leaves, filled with maple syrup in varying shades from deep amber to light golden. The bottles have gold-colored caps and are lined up on a wooden surface outdoors, with a blurred natural background. The syrup inside glows warmly in the light, highlighting the detailed leaf veins embossed on the glass.

Happy Maple Syrup Day!
Canada produces 80% of the world's pure maple syrup, and Quebec produces 91% of Canada's maple syrup.
It is something that is quintessentially Canadian.
This is its history.

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3 months ago
Image description:  A person sitting on a rocky peak, and  a panoramic view of blue mountains. Text reads:' EGU Happy International Mountains Day'.

⛰️ Happy International Mountain Day!

📸: Pantone of Blue Mountains, light scattering. By Manon Berger on imaggeo.egu.eu

📸: A moment of rest in an ever-changing landscape. By Sjoukje de Lange on imaggeo.egu.eu

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3 months ago
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M7.6 earthquake strikes offshore Honshu, Japan Japan issues "Subsequent Earthquake Advisory" due to elevated (but still low) risk of triggered megaquake

⚒️ 🧪 Japan just issued a “Subsequent Earthquake Advisory” following a M7.6 earthquake offshore Honshu. What does that mean?

Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”?

earthquakeinsights.substack.com/p/m76-earthq...

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3 months ago
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Building Better Weather Networks - Eos A lack of weather data often leaves African communities vulnerable. Convergent efforts to improve observational networks throughout the continent are slowly filling the gaps.

Better weather and climate data in Africa could save lives and improve livelihoods. Multiple international efforts are at work improving these networks.

eos.org/features/bui...

Read more in our year-end issue: bit.ly/Eos-Nov-Dec2025

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3 months ago
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M5.8 in northwestern China: aftershock of 2024 M7.0 Wushi earthquake Well-studied earthquake sequence includes "blind" mainshock with surface-rupturing aftershock

A M5.8 earthquake struck NW China today - an aftershock of the 2024 M7 Wushi earthquake. Although slip in the M7 mainshock did not reach the surface, a M5.7 aftershock a week later produced a remarkable surface scarp. Did the latest M5.8 do the same thing? We're waiting for data to find out.

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3 months ago

Lead, Tin, and trace element analysis sheds light on trade of Tin from Cornwall across Bronze Age Europe ⚒️🧪

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3 months ago
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The McMaster Ecohydrology Lab presents the 2025 #NobelPeatPrize nominees! We encourage the #peatland community to give each of these wonderful papers a read.

The winner will be announced on December 11th. #PeatPaper

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4 months ago
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M6.8 earthquake offshore Japan preceded by upward cascade of foreshocks What do we know about seismic hazard in the Japan-Kuril subduction zone?

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A M6.8 earthquake struck offshore Japan today - another large earthquake from the subduction zone that produced two recent great earthquakes. The earthquake was preceded by a "cascade up": foreshocks progressively increasing in maximum magnitude.

What do we know? What might happen next?

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4 months ago
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Hurricane Melissa Breaks Records Hurricane Melissa made landfall in southwestern Jamaica on October 28. It set records along the way.

Hurricane Melissa recently battered Jamaica and the Caribbean. Learn how hot seas led to a record-breaking storm in this new map from #MapsDotCom

ow.ly/vhNg50Xm4jK
#gischat 🌊🧪 #geogchat #geogsky

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4 months ago
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.

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.
🧪🌊⚒️

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4 months ago
Tight chevron folding in the cliffs near Millook Haven. Lighter beds are more competent sandstones while darker strata are mudstones. Pale sandstones and darker mudstones in alternating turbidite sequence. Beds are overturned with younging to the right. Lumpy texture on right-hand sandstone bed are load casts where the denser sand sunk down into the less dense mudstone underneath. Eroded flame structures visible. Red rucksack for scale. View from the cliff looking down onto the foreshore. Clear bedding is visible with a tight plunging synform on the left and a tight plunging antiform on the right. Grey skies and sea behind. Evidence of soft sediment deformation, with contorted slumped bedding. Darker discontinuous mudstone strata within the paler sandstone in the centre, and vice versa to the right.

Thoroughly enjoying checking out the spectacular folded and overturned Carboniferous-aged turbidities near Millook Haven on the NE Cornish coast.

Lovely sedimentary structures - graded bedding, slumps, load casts, flutes, all subsequently squeezed into tight chevron folds ::chef’s kiss::

⚒️🧪🌍

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6 months ago
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M7.4 earthquake shakes Kamchatka: largest aftershock of the M8.8 earthquake How does it fit into the seismic sequence?

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A M7.4 earthquake struck Russia's Kamchatka peninsula today: the largest aftershock so far of the great M8.8 on July 29th.

What do we see in the seismic data so far? And what are the chances of a triggered earthquake next door?

earthquakeinsights.substack.com/p/m74-earthq...

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6 months ago
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Seismic swarm rattles northern Nevada There is no supervolcano here, despite claims in disreputable tabloids

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If you've seen breathless reporting about a seismic swarm near a "supervolcano" in northern Nevada, don't worry: that is just where Yellowstone was, 15 million years ago. There is no supervolcano there now.

But the swarm, and the geology here, is pretty neat! Read about it in our latest post:

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6 months ago
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This Is Geoscience - GEOSCIENTIST New campaign ‘This is Geoscience’ aims to showcase the discipline's value to society and highlight the opportunities a geoscience career offers.

This Is Geoscience is a new campaign launched by @geolsoc.bsky.social to showcase the sector's societal value and highlight career opportunities for the geoscientists of tomorrow.

Discover more here: geoscientist.online/sections/new...

#geoscience #geology #careers

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6 months ago
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For #ThinSectionThursday, a bryozoan grainstone/rudstone from the Permian of Western Australia.

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6 months ago
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Die marine Kohlenstoffsenke schwächelt Ein internationales Forschungsteam unter Leitung der ETH Zürich zeigt anhand von Messungen, dass die Weltmeere während der beispiellosen marinen Hitzewelle im Jahr 2023 deutlich weniger CO2 aufgenomme...

Ein internationales Forschungsteam unter Leitung der ETH Zürich zeigt anhand von Messungen, dass die Weltmeere während der beispiellosen marinen Hitzewelle im Jahr 2023 deutlich weniger CO2 aufgenommen haben als erwartet.

ethz.ch/de/news-und-...

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6 months ago
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The ocean carbon sink is ailing Measurements analysed by an international research team led by ETH Zurich show that the global ocean absorbed significantly less CO₂ than anticipated during the unprecedented marine heatwave in 2023.

ethz.ch/en/news-and-...
Measurements analysed by an international research team led by ETH Zurich show that the global ocean absorbed significantly less CO₂ than anticipated during the unprecedented marine heatwave in 2023.

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6 months ago
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Deadly M6 earthquake strikes northeastern Afghanistan Shallow thrust faulting in a highly vulnerable region

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A magnitude 6 earthquake struck northeastern Afghanistan just before midnight on August 31st. Vulnerable homes built of mud, brick, stone, and wood collapsed; the reported death toll has exceeded 800 people.

Why do earthquakes occur here, what happened in this one, and why was it so deadly?

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6 months ago

⚒️ 🌎🌍🌏

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