La Palma is a volcano is the Canary Islands that has recently been active.
Links:
Satellite captures La Palma volcano creating strange cloud ripple
#111 - Largest Underwater Volcanic Eruption Recorded
The Flannelcasters talk about the largest underwater volcanic eruption ever recorded, off the coast of Mayotte.
Links:
Largest Underwater Eruption Ever Recorded Gives Birth to Massive New Volcano
#110 - Well of Hell (and Other Sinkholes)
The Flannelcasters talk about the Well of Hell in Yemen, and some other notable sinkholes around the world.
Links:
Cavers discover snakes and waterfalls inside Yemen's infamous 'Well of Hell' in world-first descent
Cavers descend into Yemen's 'Well of Hell' for first time
This Hellish Desert Pit Has Been On Fire for More Than 40 Years
#109 - The Great Unconformity
The Great Unconformity in some locations has nearly a billion years of missing time in the rock record. We talk about what it is and new insights on how it formed.
#108 - Kola Superdeep Borehole
This week the Flannelcasters talk about the Kola Superdeep Borehole - the deepest borehole ever drilled by humans, extended nearly 12 km below the surface of the Earth.
Links:
Ask Smithsonian: What’s the Deepest Hole Ever Dug?
The deepest hole we have ever dug
How Deep Is the Deepest Hole in the World?
Underground unearthly: What the world's deepest well told about