shakedown.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
A community for live music fans with roots in the jam scene. Shakedown Social is run by a team of volunteers (led by @clifff and @sethadam1) and funded by donations.

Administered by:

Server stats:

269
active users

#subduction

0 posts0 participants0 posts today
John E. Bartley, III (D) K7AAY<p><a href="https://www.wweek.com/news/schools/2025/03/26/the-truth-about-portlands-brick-schools-is-scarier-than-fiction/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">wweek.com/news/schools/2025/03</span><span class="invisible">/26/the-truth-about-portlands-brick-schools-is-scarier-than-fiction/</span></a> <a href="https://pdx.social/tags/PDX" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PDX</span></a> <a href="https://pdx.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> <a href="https://pdx.social/tags/BigOne" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BigOne</span></a> <a href="https://pdx.social/tags/quake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>quake</span></a> <a href="https://pdx.social/tags/Portland" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Portland</span></a> <a href="https://pdx.social/tags/PortlandOR" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PortlandOR</span></a> <a href="https://pdx.social/tags/PortlandOregon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PortlandOregon</span></a> <a href="https://pdx.social/tags/schools" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>schools</span></a> <a href="https://pdx.social/tags/PPS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PPS</span></a> <a href="https://pdx.social/tags/PortlandPublicSchools" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PortlandPublicSchools</span></a></p>
Bill Minarik<p>A Gigapan image of <a href="https://fosstodon.org/tags/omphacite" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>omphacite</span></a> from Jenner, California.</p><p>The glorious green omphacite is surrounded by assorted other minerals.</p><p><a href="https://www.gigapan.com/galleries/7874/gigapans/17328" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">gigapan.com/galleries/7874/gig</span><span class="invisible">apans/17328</span></a><br>Ron Schott</p><p><a href="https://fosstodon.org/tags/MinCup24" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MinCup24</span></a> <a href="https://fosstodon.org/tags/Geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Geology</span></a> <a href="https://fosstodon.org/tags/Eclogite" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Eclogite</span></a> <a href="https://fosstodon.org/tags/Subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Subduction</span></a></p>
Jascha Polet<p>Shallow M7.1 <a href="https://mastodon.social/tags/earthquake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>earthquake</span></a> off the coast of Miyazaki, <a href="https://mastodon.social/tags/japan" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>japan</span></a> widely felt. Based on location and mechanism, likely a <a href="https://mastodon.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> thrust event, with some <a href="https://mastodon.social/tags/tsunami" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tsunami</span></a> generating potential.<br><a href="https://earthquake.usgs.gov/earthquakes/eventpage/us6000nith/executive" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">earthquake.usgs.gov/earthquake</span><span class="invisible">s/eventpage/us6000nith/executive</span></a></p>
Matt Willemsen<p>The Nature of Mantle Flow May Depend on the Type of Slab Subducting<br><a href="https://eos.org/research-spotlights/the-nature-of-mantle-flow-may-depend-on-the-type-of-slab-subducting" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">eos.org/research-spotlights/th</span><span class="invisible">e-nature-of-mantle-flow-may-depend-on-the-type-of-slab-subducting</span></a> <a href="https://mastodon.social/tags/MantleFlow" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MantleFlow</span></a> <a href="https://mastodon.social/tags/Tectonics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Tectonics</span></a> <a href="https://mastodon.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> <a href="https://mastodon.social/tags/slab" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>slab</span></a> <a href="https://mastodon.social/tags/convection" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>convection</span></a> <a href="https://mastodon.social/tags/dislocationcreep" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dislocationcreep</span></a></p>
Matt Willemsen<p>“A Total Surprise” – Geologists Uncover New Origin Story for Deadly Seattle Fault<br><a href="https://scitechdaily.com/a-total-surprise-geologists-uncover-new-origin-story-for-deadly-seattle-fault/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">scitechdaily.com/a-total-surpr</span><span class="invisible">ise-geologists-uncover-new-origin-story-for-deadly-seattle-fault/</span></a> <a href="https://mastodon.social/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>geology</span></a> <a href="https://mastodon.social/tags/tectonics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tectonics</span></a> <a href="https://mastodon.social/tags/seattle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>seattle</span></a> <a href="https://mastodon.social/tags/faullt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>faullt</span></a> <a href="https://mastodon.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> <a href="https://mastodon.social/tags/obduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>obduction</span></a> <a href="https://mastodon.social/tags/tear" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tear</span></a> <a href="https://mastodon.social/tags/unzip" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>unzip</span></a> <a href="https://mastodon.social/tags/gravity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gravity</span></a> <a href="https://mastodon.social/tags/magnetic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>magnetic</span></a> <a href="https://mastodon.social/tags/seismic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>seismic</span></a></p>
Julie Webgirl - Just Your Luck<p>I think I figured it out.</p><p>The mass delusion of this mass infection event.</p><p>I've told the story of how I got into <a href="https://masto.ai/tags/EmergencyPrep" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EmergencyPrep</span></a>... Local govt held a community meeting about preparing for a 9.0+ <a href="https://masto.ai/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> zone <a href="https://masto.ai/tags/earthquake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>earthquake</span></a> hitting the <a href="https://masto.ai/tags/PNW" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PNW</span></a>. Power co, water co, etc all gave useful advice.</p><p>Then the fire chief stood up there and said</p><p>"We're not coming to help you"</p><p>Shock from the audience...</p><p>Then the yelling ... 1/</p><p><a href="https://masto.ai/tags/Covid" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Covid</span></a> <a href="https://masto.ai/tags/CovidIsNotOver" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CovidIsNotOver</span></a> <a href="https://masto.ai/tags/MaskUp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MaskUp</span></a> <a href="https://masto.ai/tags/CovidCautious" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CovidCautious</span></a></p>
Jascha Polet<p>Map of <a href="https://mastodon.social/tags/philippines" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>philippines</span></a> M7.6 <a href="https://mastodon.social/tags/earthquake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>earthquake</span></a> sequence (in purple) with mechanisms for largest aftershocks. The M6.9 was another <a href="https://mastodon.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> interface event, but the M6.6 was not. <a href="https://mastodon.social/tags/Aftershocks" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Aftershocks</span></a> are located all the way to (and possibly past) the trench.</p>
Jascha Polet<p>M7.4 shallow <a href="https://mastodon.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> thrust <a href="https://mastodon.social/tags/earthquake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>earthquake</span></a> in <a href="https://mastodon.social/tags/Alaska" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Alaska</span></a> in Shumagin segment of subduction zone<br><a href="https://www.emsc-csem.org/Earthquake_information/earthquake_map.php?id=1529242" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">emsc-csem.org/Earthquake_infor</span><span class="invisible">mation/earthquake_map.php?id=1529242</span></a></p>
💧🌏 Greg Cocks<p>Post-Subduction Tectonics Induced By Extension From A Lithospheric Drip<br>--<br><a href="https://doi.org/10.1038/s41561-023-01201-7" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.1038/s41561-023-012</span><span class="invisible">01-7</span></a> &lt;-- shared paper<br>--<br><a href="https://techhub.social/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GIS</span></a> <a href="https://techhub.social/tags/spatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spatial</span></a> <a href="https://techhub.social/tags/mapping" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mapping</span></a> <a href="https://techhub.social/tags/formation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>formation</span></a> <a href="https://techhub.social/tags/mechanical" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mechanical</span></a> <a href="https://techhub.social/tags/data" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>data</span></a> <a href="https://techhub.social/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>geology</span></a> <a href="https://techhub.social/tags/structuralgeology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>structuralgeology</span></a> <a href="https://techhub.social/tags/platetectonics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>platetectonics</span></a> <a href="https://techhub.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> <a href="https://techhub.social/tags/tectonics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tectonics</span></a> <a href="https://techhub.social/tags/lithosphere" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lithosphere</span></a> <a href="https://techhub.social/tags/model" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>model</span></a> <a href="https://techhub.social/tags/modeling" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>modeling</span></a> <a href="https://techhub.social/tags/Borneo" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Borneo</span></a> <a href="https://techhub.social/tags/magmatism" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>magmatism</span></a> <a href="https://techhub.social/tags/topography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>topography</span></a> <a href="https://techhub.social/tags/uplift" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>uplift</span></a> <a href="https://techhub.social/tags/Malysia" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Malysia</span></a> <a href="https://techhub.social/tags/spatialanalysis" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spatialanalysis</span></a> <a href="https://techhub.social/tags/remotesensing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>remotesensing</span></a> <a href="https://techhub.social/tags/seismology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>seismology</span></a> <a href="https://techhub.social/tags/seismic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>seismic</span></a> <a href="https://techhub.social/tags/geophysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>geophysics</span></a> <a href="https://techhub.social/tags/gravity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gravity</span></a> <a href="https://techhub.social/tags/gravational" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gravational</span></a> <a href="https://techhub.social/tags/volcanic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>volcanic</span></a> <a href="https://techhub.social/tags/vulcanism" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vulcanism</span></a> <a href="https://techhub.social/tags/arc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>arc</span></a> <a href="https://techhub.social/tags/simulation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>simulation</span></a> <a href="https://techhub.social/tags/simulations" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>simulations</span></a> <a href="https://techhub.social/tags/crust" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>crust</span></a> <a href="https://techhub.social/tags/mantle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mantle</span></a> <a href="https://techhub.social/tags/continent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>continent</span></a> <a href="https://techhub.social/tags/orogeny" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>orogeny</span></a></p>
Vicky Veritas<p>The Wilson Cycle Illustration: No Rock is Accidental</p><p>I had to share this much better picture of the Wilson Cycle with a volcanic island arc and double subduction. All the details are beautifully labelled. Gorgeous work, and the Wilson cycle still fits.</p><p>Image from: <a href="https://www.semanticscholar.org/paper/No-Rock-Is-Accidental!-Stratigraphy%2C-Structure%2C-and-Fichter-Whitmeyer/dc9f2638a08d4193fb887854024525dd7459d953" rel="nofollow noopener" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">semanticscholar.org/paper/No-R</span><span class="invisible">ock-Is-Accidental!-Stratigraphy%2C-Structure%2C-and-Fichter-Whitmeyer/dc9f2638a08d4193fb887854024525dd7459d953</span></a></p><p>Recap on Wilson Cycle: <a href="https://c.im/@vickyveritas/109623604569764070" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="ellipsis">c.im/@vickyveritas/10962360456</span><span class="invisible">9764070</span></a></p><p><a href="https://c.im/tags/TheWilsonCycle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TheWilsonCycle</span></a> <a href="https://c.im/tags/Rocks" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Rocks</span></a> <a href="https://c.im/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>geology</span></a> <a href="https://c.im/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> <a href="https://c.im/tags/ScienceMastodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ScienceMastodon</span></a> @geology</p>
Jascha Polet<p>Unexpected focal mechanism for M7.0 earthquake near <a href="https://mastodon.social/tags/Solomon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Solomon</span></a> Islands. I would have expected a shallow thrust <a href="https://mastodon.social/tags/earthquake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>earthquake</span></a> on the <a href="https://mastodon.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> interface, but it appear to be a steep <a href="https://mastodon.social/tags/normal" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>normal</span></a> <a href="https://mastodon.social/tags/faulting" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>faulting</span></a> event. As of yet, only possible <a href="https://mastodon.social/tags/tsunami" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tsunami</span></a> waves on the nearby Honiara sea level station are a few cms in amplitude.</p>
Jascha Polet<p>Today’s M6.9 shallow <a href="https://mastodon.social/tags/megathrust" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>megathrust</span></a> <a href="https://mastodon.social/tags/earthquake" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>earthquake</span></a> (approximate location as purple blob) in the context of the <a href="https://mastodon.social/tags/rupture" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rupture</span></a> areas of (numerous) previous <a href="https://mastodon.social/tags/subduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>subduction</span></a> events near <a href="https://mastodon.social/tags/Sumatra" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Sumatra</span></a> on a map from Putra et al. (2016)</p>