Alka Tripathy-Lang

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Full disclosure, I have not read the paper yet. I've only read the abstract and scanned the figures. ⚒️

Bubbles, spatter, lava, and tremor linked in Icelandic eruption of Geldingadalir | EarthScope Consortium Comparing seismic data and drone imagery near a churning lava lake shows the signal of bursting bubbles.

Double, double, toil and trouble... oh wait no. Bubbles, spatter, lava and tremor, there we go! For @earthscope.org, I dove into a paper that used drone footage from Geldingadalir's lava lake + seismic data to explore the source of volcanic tremor. ⚒️🧪

www.earthscope.org/news/bubbles...

Map of the Puget Sound and Vancouver Island region showing the location of tiny ETS tremors (not earthquakes and not felt) from September 15 - October 15. Locations are colour-coded by time.

Right on schedule! More than 10,000 tiny tremors (not felt) have rolled through #PugetSound and southern #VancouverIsland over the past 30 days. This is Episodic Tremor and Slip (ETS) and occurs here every 12-16 months:
www.earthquakescanada.nrcan.gc.ca/pprs-pprp/pu...
Also - it is #ShakeOut day!
⚒️🧪

Photograph of a human hand holding two long pieces of rock. The left rock has alternating layers of red, dark grey and light grey. The right rock has many fine undulating layers of alternating grey, green, and black.

Oxidised (left) and unoxidised 3.2 billion year old banded iron formation. These samples are from drill core and were only a couple of meters apart. #geology #paleontology

Potassium-40 isotopic evidence for an extant pre-giant-impact component of Earth’s mantle - Nature Geoscience Some mafic rocks have a ⁴⁰K/³⁹K ratio lower than all other terrestrial samples, according to isotopic composition analyses, suggesting parts of Earth’s mantle have retained their composition prior to ...

"we propose this Potassium-40 deficit represents primitive proto-Earth mantle domains that largely escaped mantle mixing after the [moon-forming] giant impact and exist in the present-day deep mantle, contributing to some modern hotspot volcanism" ⚒️
www.nature.com/articles/s41...

Chicago’s seismicity captured by single seismic station | EarthScope Consortium Model catalogs quarry blasts, heavy machinery noise, and other anthropogenic signals that can muddy seismic data.

My latest for @earthscope.org combines Silurian reef systems with seismology! The highlighted research looks at how to parse noisy seismic data from a single station in the Chicago area. ⚒️🧪

www.earthscope.org/news/chicago...

Tomorrow is ShakeOut!

On October 16 you can join geologists from the @cageosurvey.bsky.social at Tech Interactive in San Jose and in the California Natural Resources Agency Building as we talk about earthquake science and how to be earthquake ready.

I'm incredibly honored to be a part of this team and proud of this award!!! But I'm just a very small part of this program. Anita Marshall @bakingsodavolc.bsky.social deserves all the credit for the idea, the passion, the grunt work, and for its success!!! ⚒️🧪🔭

A new map charts sediment thickness across the continental US | EarthScope Consortium No single map of sediment thickness across the conterminous U.S. existed that used a consistent method — until this new one based on Transportable Array seismic data.

My latest for @earthscope.org, a dive into mapping sediment thickness across the US with Transportable Array data! ⚒️

www.earthscope.org/news/a-new-m...

‘Turning to Stone’ paints rocks as storytellers and mentors Part memoir, part geology explainer, Marcia Bjornerud’s latest book explores the hidden wisdom of Earth’s rocks.

Highly recommend:
1. Science on a Mission by Naomi Oreskes (www.sciencenews.org/article/new-...)
2. The Last Days of the Dinosaurs by Riley Black (www.sciencenews.org/article/dino...)
3. Turning to Stone by Marcia Bjornerud (www.sciencenews.org/article/turn...)

For @temblorinc.bsky.social, @beccapox.bsky.social writes about interesting new developments in tsunami early warning using prompt elastogravity waves, a small-amplitude, fast-moving seismic wave. ⚒️🧪

This earthquake was originally reported as a magnitude 4.6 but was downgraded to a magnitude 4.3.

Remember, there is a trade off between speed and accuracy. As more data becomes available the initial reports are likely to be adjusted to reflect our improved understanding.

Feature not bug.

What went well, and what needs to be improved when it comes to major earthquakes that shake Istanbul? In @temblorinc.bsky.social 's latest, experts explore aspects of a recent M6.2 earthquake that shook the city and reportedly caused panic. 🧪⚒️

How does insurance work when it comes to events like tsunamis? This short Temblor article describes one way path, built on NOAA's tsunami monitoring efforts. 10 days after the Kamchatka tsunami hit Samoa, the country received a payout from PCRIC. ⚒️🧪

Long but interesting! Check out @temblorinc.bsky.social's latest on the July 2025 Kamchatka earthquake, in which Temblor scientists look at stress transfer associated with 2 foreshocks. They also compare the mainshock to a similar 1952 quake, explore some tsunamis, and consider an eruption. ⚒️🧪

SSA Seeks New BSSA Editor-in-Chief | Seismological Society of America 15 August 2025—The Seismological Society of America announces its search for the next Editor-in-Chief (EIC) of the Bulletin of the Seismological Society of America (BSSA), its flagship, peer-reviewed…

📣 SSA is seeking nominations for the Editor-in-Chief of the Bulletin of the Seismological Society of America #BSSA. Nominations are open through October 2025.
⭐ Full Job Description: www.seismosoc.org/news/ssa-see...
⭐ Nomination Link: www.seismosoc.org/publications...

A computer screen showing a tool that allows for the display and analysis of planetary maps and other data known as JMARS. The tool is currently showing a large portion of the surface of Mars in false-color infrared, centered around the Mariner Valley.

JMARS VIRTUAL TRAINING: New User Introduction

Tuesday, September 16, 2025, 9am-1pm MST.

This is intended for New Users interested in learning the basics of JMARS software. Please sign up to participate at:

tinyurl.com/mum73suk

DEADLINE for registration is September 9th!

Just downloaded! Going to love this when we go camping in a few weeks. Thanks for the rec! I'll use both the USGS site and RockD and report back my thoughts (if I remember to come back to this thread 🙃).

Map of border region of Nevada (South), Idaho and Oregon that's meant to show precambrian geology.

pC geology-only fail. Definitely... not what those boundaries look like between Idaho, Oregon and Nevada.

I've never used it!

I'm glad to find that this is easy to do on the phone as well. I'm happily using two fingers to cruise around California at the moment!

So, to answer @callanbentley.bsky.social's question: in some ways, it could be so much better. But it's a pretty neat resource to have available to the general public. Anyone can pull this up on their phone and see what kinds of rocks they're in, how old they are, and what they're called.

Another gripe: I can't zoom in as much as I need! Maybe I'm just zoomed out too much to see, and it *is * actually correct! I can't tell!

For example, I zoomed into the region where I did my MS thesis, and it's... not quite right? It has different lithologies on either side of the road. Definitely not true, but you'd need to look at papers or go there to know this.

There is absolutely so much detail missing, especially at the outcrop scale.

The thick red line sucks, especially when you're zoomed out.

I can't decide what I think about the options for synthesis/source/geomaterial/age.

I like the layer options; pC versus Pre-Q versus Q versus all. This was actually useful to me last night to fact check something I read, wherein I needed to see where all pC rocks were in the western US.

Prepare for a list!

I like that I can I can relatively easily see regional-scale geology. For me, this will be useful when we go to new places where I'm unfamiliar with the rocks. AND It's decent on my phone (I'm shocked by this).

Yes, yes I do want to see this new geologic map!