Question

c) Define the following terms - epicentre • fault • aftershocks ​

Answer 1

Epicenter is the point on the earth’s surface where the effects of a sudden movement (earthquake) are felt most strongly.

In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements.

Aftershocks are earthquakes that follow the largest shock of an earthquake sequence. They are smaller than the mainshock and within 1-2 rupture lengths distance from the mainshock.  In general, the larger the mainshock, the larger and more numerous the aftershocks, and the longer they will continue.