Where in the indian subcontinent is the deccan plateau located?

It is located in Southern India!

Explanation:

The name Deccan comes from a Sanskrit word "Daksina" meaning South.  This large plateau forms a triangle surrounded by 3 mountain ranges. It extends through many states of India, Andhra pradesh, Kerala, Tamil Nadu to name a few. It cover a major part of the southern India

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.