  Recycled millisecond pulsars are susceptible to starquakes as they are
continuously accreting matter from their binary companion. A starquake happens
when the rotational frequency of the star crosses its breaking frequency. In
this study, we perform a model analysis of an accreting neutron star suffering
a starquake. We analyze two models: a spherical star with accreting mountains
and a deformed star with accreting mountains. We find that as the star crosses
the breaking frequency and suffers a starquake there is a sudden change in the
continuous gravitational wave signal arriving from them. It is interesting to
note that the amplitude of the gravitational wave signals increases suddenly
for the spherical star. In contrast, for the deformed star, the amplitude of
the continuous gravitational wave signal decreases suddenly. This sudden change
in the continuous gravitational wave signal in recycled millisecond pulsars can
be a unique signature for such pulsars undergoing a starquake.
