Why is the equatorial zone referred to as "the doldrums"

a) the weather in the equatorial zone is consistently stormy all year long.
b) the equatorial zone has consistently calm winds, which makes it difficult to navigate
c) the equatorial zone has consistently strong winds which makes it difficult to navigate
d) none of the above

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.

answer biscay bay;