TEOTWAWKI 10: Earthquakes
Publisher |
PhysicsPodcast.com
Media Type |
audio
Categories Via RSS |
Physics
Science
Publication Date |
Aug 19, 2017
Episode Duration |
00:25:25

Let’s talk about earthquakes. As we know, the Earth’s crust is made up of tectonic plates – vast plates of rock that shift around due to convection and the motion of fluid in Earth’s mantle. They, roughly speaking “join together” at fault-lines. But in reality, the plates can’t slide past each other frictionlessly; what tends to happen is that they “catch” on each other, stick for a while – with pressure building, because whatever predominant force is pushing them along is building up pressure and elastic strain energy. Then, eventually, it all becomes too much, and they slip dramatically, releasing all that built-up energy quickly and causing vibrational waves to propagate, which we feel as Earthquakes. For this reason, they occur predominantly around faultlines, like the San Andreas fault that runs through California, and others in Japan, South America, and the middle east. But do earthquakes have the power to destroy the world or even wreak major damage on human civilization as a whole? Let's find out.

This episode currently has no reviews.

Submit Review
This episode could use a review!

This episode could use a review! Have anything to say about it? Share your thoughts using the button below.

Submit Review