Pre-monsoon rainfall in Karnataka and Kerala is known as mango shower (also known as April rains or summer showers). It helps in the ripening of mangoes.
Marmagao Port is located at the mouth of the Zuvari-estuary in Goa. It is an important iron ore exporting seaport. It is connected to Karnataka via Konkan Railways.
The main reason for the earthquakes in India is the tectonic movement. The Indian plate is continuously hitting at Asia plate at a rate of approximately 47 mm/year (anticlockwise).