  We investigate an inverse source problem of the time-harmonic elastic wave
equation. Some novel sampling-type numerical schemes are proposed to identify
the moment tensor point sources in the Lam\'e system from near-field
measurements. Rigorous theoretical justifications are provided to show that the
locations and moment tensors of the elastic sources can be uniquely determined
from the multi-frequency displacement data. Several numerical examples are also
presented to illustrate the validity and robustness of the proposed method.
