SpeedrooGuessroo · All speeds

How fast do earthquake S-waves travel?

12,600 km/hAbout 7,830 mph · Orbit

About 3.5 km a second, arriving after the P-waves.

That's about 220 times a red kangaroo's top speed (56 km/h).

12,600 km/h
the speed of sound

By speed: an earthquake S-wave is about 10× faster than the speed of sound.

Think you can guess? Play today's Speedroo

Things about as fast

Many real things vary, so we use a typical or official figure. Spotted a mistake? Email [email protected].