Lightnews — Scholar-powered news

Alka Tripathy-Lang @dralkatrip.bsky.social · 5d

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. ⚒️🧪

Temblor, Inc. @temblorinc.bsky.social · 5d

Tsunami early warning systems offer important information about impending waves. New systems, like one that uses prompt elastogravity signals (or PEGS) can increase the timeliness and accuracy of warnings. For more, check out Temblor's latest, by @beccapox.bsky.social

temblor.net/earthquake-i...

Upgrading Tsunami Warning Systems for Faster and More Accurate Alerts - Temblor.net

Tsunami early warning systems offer important information about impending waves. New systems can increase the timeliness and accuracy of warnings. By Rebecca Owen, Science Writer (@beccapox and @bec...

temblor.net

1 8

Reposted by Alka Tripathy-Lang

Dr. Wendy Bohon @drwendyrocks.bsky.social · 16d

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.

Dr. Wendy Bohon @drwendyrocks.bsky.social · 16d

M 4.3 - 2 km ESE of Berkeley, CA

earthquake.usgs.gov/earthquakes/...

Map of the San Francisco Bay Area showing the location of the earthquake marked by a star and the level of shaking marked by different colors.

1 11 61

Alka Tripathy-Lang @dralkatrip.bsky.social · 23d

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. 🧪⚒️

3 6

Alka Tripathy-Lang @dralkatrip.bsky.social · 25d

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. ⚒️🧪

Temblor, Inc. @temblorinc.bsky.social · 25d

Just 10 days after the Kamchatka tsunami hit the shores of Samoa, the island nation received a payout from the Pacific Catastrophe Risk Insurance Company. Temblor played a role in this process.

temblor.net/earthquake-i...

2025 Kamchatka tsunami triggered rapid insurance payout in the South Pacific - Temblor.net

Just 10 days after the Kamchatka tsunami hit its shores, the island nation of Samoa received a payout from the Pacific Catastrophe Risk Insurance Company (PCRIC), a regional development insurer. ...

temblor.net

5

Alka Tripathy-Lang @dralkatrip.bsky.social · 28d

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. ⚒️🧪

Temblor, Inc. @temblorinc.bsky.social · 28d

Temblor's analysis of the July 2025 magnitude 8.8 Kamchatka quake explores some mysteries (a moderate tsunami, a curious eruption), and finds that the 10-day foreshock was exceptionally productive.

temblor.net/earthquake-i...

Huge July 2025 Kamchatka earthquake followed unusually productive foreshock sequence - Temblor.net

A large foreshock that struck 10 days before the magnitude 8.8 Kamchatka earthquake brought the epicentral megathrust patch closer to failure and produced an exceptionally abundant burst of aftershock...

temblor.net

4 8

Reposted by Alka Tripathy-Lang

Seismological Society of America @seismosocam.bsky.social · 29d

📣 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...

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…

www.seismosoc.org

1 2 3

Reposted by Alka Tripathy-Lang

JMARS @jmars-gis.bsky.social · Sep 3

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!

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.

3 6

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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 🙃).

1 4

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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

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

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

I've never used it!

1

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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!

1

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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.

1 1

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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!

1 1

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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.

1 1

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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

1

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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

1 2

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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

1 2

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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.

2 4

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 29

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).

1 3

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 28

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

David Ho @davidho.bsky.social · Aug 28

You want to see this new geologic map of the contiguous US that the USGS just released.

Cooperative National Geologic Map | NGMDB

Explore the Cooperative National Geologic Map, a unified view of our Nation's geology, with interactive layers and geologic data.

ngmdb.usgs.gov

2 4 19

Reposted by Alka Tripathy-Lang

Seismological Society of America @seismosocam.bsky.social · Aug 20

🔥PRESS RELEASE🔥Revisiting an Enigma on California’s North Coast: The Mw 6.5 Fickle Hill Earthquake of 21 December 1954 #BSSA

What lies beneath Fickle Hill? The answer may help solve an earthquake mystery that has puzzled seismologists for decades.

PAPER: pubs.geoscienceworld.org/ssa/bssa/art...

1 1 3

Reposted by Alka Tripathy-Lang

Ryan J Hollister @phaneritic.bsky.social · Aug 6

Finally got a chance to process some of my backpacking photos from Late July. I hope to share some pretty photos and general geoscience descriptions of the area in the coming weeks. For now, here’s a sunset reflection on a small pond next to Lower Golden Trout Lake in the John Muir Wilderness.

A glowing orange mountain range is reflected into a small high Sierra pond at sunset. There are some granite rocks in the pond that are also reflecting, and the rims of the small pond are ported by larger granite, boulders and glacial, attics with grasses around the fringe of the pond and some Pine trees that are small interspersed.

4 7 79

Reposted by Alka Tripathy-Lang

John Ristau 🇨🇦 🇳🇿 @earthquakenz.bsky.social · Aug 4

During a tsunami warning we always caution that a tsunami arrives as a series of waves and the first arrival is not always the largest. Larger tsunami arrivals can occur hours later. We can see this from the recent M 8.8 Kamchatka earthquake.🧪

1 6 44

Reposted by Alka Tripathy-Lang

Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · Aug 1

I'll be on sabbatical starting January 1, 2026, and if anyone is looking for a guest speaker for department seminars, I'm happy to discuss possible dates. Reskeet widely! 🧪⚒️

A man kneeling on a glacier and working on a laptop next to a stupid, fallen-over weather station, and with a US Army Blackhawk helicopter in the background.

1 25 68

Alka Tripathy-Lang @dralkatrip.bsky.social · Aug 1

This reminds me of the Cloos and Shreve papers from the 1980s.

1 1