Explanation:

The tremors are caused by the disturbance deep down inside the uppermost layer of the earth called the crust.The Earth's crust is a thin shell on the outside of the Earth, accounting for less than 1% of Earth's volume. It is the top component of lithosphere: a division of Earth's layers that includes the crust and the upper part of the mantle.The lithosphere is broken into tectonic plates that move, allowing heat to escape from the interior of the Earth into space.