Why Do Transform Faults Slide Sideways?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do transform faults slide sideways?

The Big Idea

At a transform fault, two plates slide past each other sideways. They snag and stick, and the stress builds up. Then they suddenly slip, and that makes an earthquake!

Slide Past

Step one: slide past. At a transform fault, one plate slides one way, and the other plate slides the opposite way. They move side by side, like two cars passing on a road.

Stick and Build

Step two: stick and build. The rough edges snag each other, so the plates get stuck. Meanwhile, the plates keep pushing, and stress slowly builds up.

Sudden Slip

Step three: a sudden slip. Finally the rock breaks free and jumps forward, sometimes by several meters. That sudden slip sends out waves, and we feel them as an earthquake.

A Closer Look

Let's take a closer look! The plates move sideways past each other. Rough spots make them stick, like Velcro. Stress keeps building up. Then they slip, and the ground shakes.

Quick Facts

Quick facts! The San Andreas Fault in California is a famous transform fault. The Queen Charlotte Fault off Haida Gwaii in Canada is another one. It caused a magnitude 7.8 earthquake in 2012. Plates move a few centimeters a year, about as fast as your fingernails grow, so the stress builds very slowly.

Think Like a Scientist

Now, think like a scientist! Press two pieces of sandpaper together, with the rough sides facing. Slide them slowly. Notice how they stick and then jump. That is how a fault builds stress and then slips.

Outro

Transform faults slide sideways, and a sudden slip makes an earthquake. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!