Thursday, November 9, 2017

Doublet Earthquake

We just learned about the Blind Thrust.

Another type of earthquake is the Doublet Earthquake.

We learned before that most earthquakes have a big mainshock, with a smaller beginning called a foreshock, and a smaller quake after called the aftershock.

Sometimes two big earthquakes happen at the same time very near each other.
When this happens, it's like a double quake, just like the name doublet earthquake.
So when this happens there are two foreshocks, two mainshocks and two aftershocks.
It can be very hard for seismologists to figure out which quakes came from which fault.

(from: wikipedia - doublet earthquake)

Kid Facts - Blast from the past: Iron Ore