
        <p>We&#39;re still here - it has just been a very difficult time, but this week we&#39;re talking about Hurricane Melissa and Halloween Candy!</p>

<ul>
<li><a href="https://en.wikipedia.org/wiki/Hurricane_Melissa" rel="nofollow">Hurricane Melissa</a></li>
<li><a href="https://www.youtube.com/watch?v=O_LIuonLTiQ" rel="nofollow">Video Inside the Hurricane</a></li>
</ul>

<h2>Fun Paper Friday</h2>

<ul>
<li>Trick or Treat! Maybe it should be Treat or Toy? Find out in this week&#39;s Fun Paper!</li>
<li><a href="https://www.sciencedirect.com/science/article/pii/S1499404606603357" rel="nofollow">Schwartz, Marlene B., Eunice Y. Chen, and Kelly D. Brownell. &quot;Trick, treat, or toy: children are just as likely to choose toys as candy on Halloween.&quot; Journal of nutrition education and behavior 35.4 (2003): 207-209.</a></li>
</ul>

<h2>Contact us:</h2>

<p><strong>Show</strong></p>

<ul>
<li><a href="https://www.patreon.com/dontpanicgeo" rel="nofollow">Support us on Patreon!</a></li>
<li><a href="http://www.dontpanicgeocast.com" rel="nofollow">www.dontpanicgeocast.com</a></li>
<li><a href="https://twitter.com/dontpanicgeo" rel="nofollow">@dontpanicgeo</a></li>
<li><a href="mailto:dontpanicgeocast@gmail.com" rel="nofollow">dontpanicgeocast@gmail.com</a></li>
</ul>

<p><strong>John Leeman</strong></p>

<ul>
<li><a href="http://www.johnrleeman.com" rel="nofollow">www.johnrleeman.com</a></li>
<li><a href="https://twitter.com/geo_leeman" rel="nofollow">@geo_leeman</a></li>
</ul>

<p><strong>Shannon Dulin</strong></p>

<ul>
<li><a href="https://twitter.com/ShannonDulin" rel="nofollow">@ShannonDulin</a></li>
</ul>
      

<description>We're still here - it has just been a very difficult time, but this week we're talking about Hurricane Melissa and Halloween Candy!
Hurricane Melissa (https://en.wikipedia.org/wiki/Hurricane_Melissa)
Video Inside the Hurricane (https://www.youtube.com/watch?v=O_LIuonLTiQ)
Fun Paper Friday
Trick or Treat! Maybe it should be Treat or Toy? Find out in this week's Fun Paper!
Schwartz, Marlene B., Eunice Y. Chen, and Kelly D. Brownell. "Trick, treat, or toy: children are just as likely to choose toys as candy on Halloween." Journal of nutrition education and behavior 35.4 (2003): 207-209. (https://www.sciencedirect.com/science/article/pii/S1499404606603357)
Contact us:
Show
Support us on Patreon! (https://www.patreon.com/dontpanicgeo)
www.dontpanicgeocast.com (http://www.dontpanicgeocast.com)
@dontpanicgeo (https://twitter.com/dontpanicgeo)
dontpanicgeocast@gmail.com
John Leeman
- www.johnrleeman.com (http://www.johnrleeman.com)
- @geo_leeman (https://twitter.com/geo_leeman)
Shannon Dulin
- @ShannonDulin (https://twitter.com/ShannonDulin)
</description>

We're still here - it has just been a very difficult time, but this week we're talking about Hurricane Melissa and Halloween Candy!

Episode 422 - "Melissa"


        <p>This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went!</p>

<ul>
<li><a href="https://leemangeophysicalllc.github.io/GEARS/2025/2025_summer_home.html" rel="nofollow">GEARS Workshop</a></li>
</ul>

<h2>Fun Paper Friday</h2>

<ul>
<li><a href="https://www.researchgate.net/profile/Andreas-Hejnol/publication/230766195_The_mouth_the_anus_and_the_blastopore_-_open_questions_about_questionable_openings/links/09e415040d58e94fcc000000/The-mouth-the-anus-and-the-blastopore-open-questions-about-questionable-openings.pdf" rel="nofollow">Hejnol, Andreas, and Mark Q. Martindale. &quot;The mouth, the anus, and the blastopore—open questions about questionable openings.&quot; Animal Evolution: Genomes, Fossils, and Trees (2009): 33-40.</a></li>
</ul>

<h2>Contact us:</h2>

<p><strong>Show</strong></p>

<ul>
<li><a href="https://www.patreon.com/dontpanicgeo" rel="nofollow">Support us on Patreon!</a></li>
<li><a href="http://www.dontpanicgeocast.com" rel="nofollow">www.dontpanicgeocast.com</a></li>
<li><a href="https://twitter.com/dontpanicgeo" rel="nofollow">@dontpanicgeo</a></li>
<li><a href="mailto:dontpanicgeocast@gmail.com" rel="nofollow">dontpanicgeocast@gmail.com</a></li>
</ul>

<p><strong>John Leeman</strong></p>

<ul>
<li><a href="http://www.johnrleeman.com" rel="nofollow">www.johnrleeman.com</a></li>
<li><a href="https://twitter.com/geo_leeman" rel="nofollow">@geo_leeman</a></li>
</ul>

<p><strong>Shannon Dulin</strong></p>

<ul>
<li><a href="https://twitter.com/ShannonDulin" rel="nofollow">@ShannonDulin</a></li>
</ul>
      

<description>This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went!
GEARS Workshop (https://leemangeophysicalllc.github.io/GEARS/2025/2025_summer_home.html)
Fun Paper Friday
Hejnol, Andreas, and Mark Q. Martindale. "The mouth, the anus, and the blastopore—open questions about questionable openings." Animal Evolution: Genomes, Fossils, and Trees (2009): 33-40. (https://www.researchgate.net/profile/Andreas-Hejnol/publication/230766195_The_mouth_the_anus_and_the_blastopore_-_open_questions_about_questionable_openings/links/09e415040d58e94fcc000000/The-mouth-the-anus-and-the-blastopore-open-questions-about-questionable-openings.pdf)
Contact us:
Show
Support us on Patreon! (https://www.patreon.com/dontpanicgeo)
www.dontpanicgeocast.com (http://www.dontpanicgeocast.com)
@dontpanicgeo (https://twitter.com/dontpanicgeo)
dontpanicgeocast@gmail.com
John Leeman
- www.johnrleeman.com (http://www.johnrleeman.com)
- @geo_leeman (https://twitter.com/geo_leeman)
Shannon Dulin
- @ShannonDulin (https://twitter.com/ShannonDulin)
</description>

This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went!

Episode 421 - "Come work for you"


        <p>This week we are back and discussing the recent large earthquake in Russia!</p>

<h2>Fun Paper Friday</h2>

<ul>
<li>Is that viral video of a fault rupture form a security camera real? This paper checks it out.</li>
<li><a href="https://pubs.geoscienceworld.org/ssa/tsr/article/5/3/281/659624/Curved-Fault-Slip-Captured-by-CCTV-Video-During" rel="nofollow">Kearse, Jesse, and Yoshihiro Kaneko. &quot;Curved Fault Slip Captured by CCTV Video During the 2025 M w 7.7 Myanmar Earthquake.&quot; The Seismic Record 5.3 (2025): 281-288.</a></li>
</ul>

<h2>Contact us:</h2>

<p><strong>Show</strong></p>

<ul>
<li><a href="https://www.patreon.com/dontpanicgeo" rel="nofollow">Support us on Patreon!</a></li>
<li><a href="http://www.dontpanicgeocast.com" rel="nofollow">www.dontpanicgeocast.com</a></li>
<li><a href="https://twitter.com/dontpanicgeo" rel="nofollow">@dontpanicgeo</a></li>
<li><a href="mailto:dontpanicgeocast@gmail.com" rel="nofollow">dontpanicgeocast@gmail.com</a></li>
</ul>

<p><strong>John Leeman</strong></p>

<ul>
<li><a href="http://www.johnrleeman.com" rel="nofollow">www.johnrleeman.com</a></li>
<li><a href="https://twitter.com/geo_leeman" rel="nofollow">@geo_leeman</a></li>
</ul>

<p><strong>Shannon Dulin</strong></p>

<ul>
<li><a href="https://twitter.com/ShannonDulin" rel="nofollow">@ShannonDulin</a></li>
</ul>
      

<description>This week we are back and discussing the recent large earthquake in Russia!
Fun Paper Friday
Is that viral video of a fault rupture form a security camera real? This paper checks it out.
Kearse, Jesse, and Yoshihiro Kaneko. "Curved Fault Slip Captured by CCTV Video During the 2025 M w 7.7 Myanmar Earthquake." The Seismic Record 5.3 (2025): 281-288. (https://pubs.geoscienceworld.org/ssa/tsr/article/5/3/281/659624/Curved-Fault-Slip-Captured-by-CCTV-Video-During)
Contact us:
Show
Support us on Patreon! (https://www.patreon.com/dontpanicgeo)
www.dontpanicgeocast.com (http://www.dontpanicgeocast.com)
@dontpanicgeo (https://twitter.com/dontpanicgeo)
dontpanicgeocast@gmail.com
John Leeman
- www.johnrleeman.com (http://www.johnrleeman.com)
- @geo_leeman (https://twitter.com/geo_leeman)
Shannon Dulin
- @ShannonDulin (https://twitter.com/ShannonDulin)
</description>

This week we are back and discussing the recent large earthquake in Russia!

Episode 420 - "Tourist Destination" Kamchatka Earthquake


        <p>We&#39;re hitting the open road — geologically speaking. This episode kicks off our new state-by-state series covering the most fascinating, scenic, or just plain weird geologic stops in the U.S. We’re going alphabetically (because of course we are), starting with Alabama, Alaska, and Arkansas. Some sites we&#39;ve visited, others are firmly on our dream list, but every pick is guaranteed to bring a bit of science to your next adventure.</p>

<h2>Alabama</h2>

<ul>
<li>Cheaha Mountain</li>
<li>Cathedral Caverns</li>
</ul>

<h2>Alaska</h2>

<ul>
<li>Wrangell-St. Elias National Park</li>
<li>Mendenhall Glacier</li>
</ul>

<h2>Arkansas</h2>

<ul>
<li>Crater of Diamonds State Park</li>
<li>Blanchard Springs Caverns</li>
</ul>

<h2>Fun Paper Friday</h2>

<ul>
<li><a href="https://www.osti.gov/servlets/purl/2324804" rel="nofollow">Frost, Mungo, et al. &quot;Diamond precipitation dynamics from hydrocarbons at icy planet interior conditions.&quot; Nature astronomy 8.2 (2024): 174-181.</a></li>
</ul>

<h2>Contact us:</h2>

<p><strong>Show</strong></p>

<ul>
<li><a href="https://www.patreon.com/dontpanicgeo" rel="nofollow">Support us on Patreon!</a></li>
<li><a href="http://www.dontpanicgeocast.com" rel="nofollow">www.dontpanicgeocast.com</a></li>
<li><a href="https://twitter.com/dontpanicgeo" rel="nofollow">@dontpanicgeo</a></li>
<li><a href="mailto:dontpanicgeocast@gmail.com" rel="nofollow">dontpanicgeocast@gmail.com</a></li>
</ul>

<p><strong>John Leeman</strong></p>

<ul>
<li><a href="http://www.johnrleeman.com" rel="nofollow">www.johnrleeman.com</a></li>
<li><a href="https://twitter.com/geo_leeman" rel="nofollow">@geo_leeman</a></li>
</ul>

<p><strong>Shannon Dulin</strong></p>

<ul>
<li><a href="https://twitter.com/ShannonDulin" rel="nofollow">@ShannonDulin</a></li>
</ul>
      

<description>We're hitting the open road — geologically speaking. This episode kicks off our new state-by-state series covering the most fascinating, scenic, or just plain weird geologic stops in the U.S. We’re going alphabetically (because of course we are), starting with Alabama, Alaska, and Arkansas. Some sites we've visited, others are firmly on our dream list, but every pick is guaranteed to bring a bit of science to your next adventure.
Alabama
Cheaha Mountain
Cathedral Caverns
Alaska
Wrangell-St. Elias National Park
Mendenhall Glacier
Arkansas
Crater of Diamonds State Park
Blanchard Springs Caverns
Fun Paper Friday
Frost, Mungo, et al. "Diamond precipitation dynamics from hydrocarbons at icy planet interior conditions." Nature astronomy 8.2 (2024): 174-181. (https://www.osti.gov/servlets/purl/2324804)
Contact us:
Show
Support us on Patreon! (https://www.patreon.com/dontpanicgeo)
www.dontpanicgeocast.com (http://www.dontpanicgeocast.com)
@dontpanicgeo (https://twitter.com/dontpanicgeo)
dontpanicgeocast@gmail.com
John Leeman
- www.johnrleeman.com (http://www.johnrleeman.com)
- @geo_leeman (https://twitter.com/geo_leeman)
Shannon Dulin
- @ShannonDulin (https://twitter.com/ShannonDulin)
</description>

Pack your bags — we’re hitting the geologic road! In this episode of Don't Panic Geocast, John and Shannon kick off a new series exploring the best geo-themed road trip stops in every U.S. state, starting with Alabama, Alaska, and Arkansas. From crystal hunting to tectonic tales, it’s a mix of places we’ve explored and destinations still on our bucket list. Whether you're planning a trip or just dreaming of one, this is the geo-travel inspo you didn’t know you needed.

Episode 419 - "Diamonds Everywhere" A States


        <p>What makes a mineral a favorite? In this fun and down-to-earth episode, John and Shannon swap stories about the minerals they love most — and why. Along the way, they unpack cool crystal habits, formation environments, fieldwork memories, and the aesthetic appeal of minerals from museum specimens to muddy boots.</p>

<p>Shannon shares her appreciation for:</p>

<p>Hematite – With its metallic luster and planetary significance.<br>
Goethite – A subtle but important iron oxide-hydroxide.<br>
Smithsonite – Beautiful colors and a fascinating history in ore geology.</p>

<p>John counters with:<br>
Ulexite – “TV rock,” with fiber-optic properties that never fail to wow.<br>
Uraninite – A dense, radioactive reminder of geologic power and energy.<br>
Tourmaline – A colorful, complex favorite of mineral collectors and scientists alike.</p>

<h2>Fun Paper Friday</h2>

<ul>
<li><a href="https://iopscience.iop.org/article/10.3847/2041-8213/ade3d3/pdf" rel="nofollow">James, C. W., et al. &quot;A nanosecond-duration radio pulse originating from the defunct Relay 2 satellite.&quot; The Astrophysical Journal Letters 987.1 (2025): L16.</a></li>
</ul>

<h2>Contact us:</h2>

<p><strong>Show</strong></p>

<ul>
<li><a href="https://www.patreon.com/dontpanicgeo" rel="nofollow">Support us on Patreon!</a></li>
<li><a href="http://www.dontpanicgeocast.com" rel="nofollow">www.dontpanicgeocast.com</a></li>
<li><a href="https://twitter.com/dontpanicgeo" rel="nofollow">@dontpanicgeo</a></li>
<li><a href="mailto:dontpanicgeocast@gmail.com" rel="nofollow">dontpanicgeocast@gmail.com</a></li>
</ul>

<p><strong>John Leeman</strong></p>

<ul>
<li><a href="http://www.johnrleeman.com" rel="nofollow">www.johnrleeman.com</a></li>
<li><a href="https://twitter.com/geo_leeman" rel="nofollow">@geo_leeman</a></li>
</ul>

<p><strong>Shannon Dulin</strong></p>

<ul>
<li><a href="https://twitter.com/ShannonDulin" rel="nofollow">@ShannonDulin</a></li>
</ul>
      

<description>What makes a mineral a favorite? In this fun and down-to-earth episode, John and Shannon swap stories about the minerals they love most — and why. Along the way, they unpack cool crystal habits, formation environments, fieldwork memories, and the aesthetic appeal of minerals from museum specimens to muddy boots.
Shannon shares her appreciation for:
Hematite – With its metallic luster and planetary significance.
Goethite – A subtle but important iron oxide-hydroxide.
Smithsonite – Beautiful colors and a fascinating history in ore geology.
John counters with:
Ulexite – “TV rock,” with fiber-optic properties that never fail to wow.
Uraninite – A dense, radioactive reminder of geologic power and energy.
Tourmaline – A colorful, complex favorite of mineral collectors and scientists alike.
Fun Paper Friday
James, C. W., et al. "A nanosecond-duration radio pulse originating from the defunct Relay 2 satellite." The Astrophysical Journal Letters 987.1 (2025): L16. (https://iopscience.iop.org/article/10.3847/2041-8213/ade3d3/pdf)
Contact us:
Show
Support us on Patreon! (https://www.patreon.com/dontpanicgeo)
www.dontpanicgeocast.com (http://www.dontpanicgeocast.com)
@dontpanicgeo (https://twitter.com/dontpanicgeo)
dontpanicgeocast@gmail.com
John Leeman
- www.johnrleeman.com (http://www.johnrleeman.com)
- @geo_leeman (https://twitter.com/geo_leeman)
Shannon Dulin
- @ShannonDulin (https://twitter.com/ShannonDulin) 
</description>

In this episode of Don't Panic Geocast, John and Shannon dive into their favorite minerals, sharing what makes these crystalline companions so captivating. From shimmering hematite to vividly colored tourmaline, they explore mineral properties, formation quirks, and the stories behind their top picks. Whether you're a rockhound or just curious, this episode is sure to spark your inner mineral nerd.

Episode 418 - "I like the crystal habit"

John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.


Don't Panic Geocast

Details

Recent Episodes