We performed time domain moment tensor inversion using broadband waveform data recorded at a broadband seismic station in the Philippines to investigate its applicability. We used a time domain moment tensor inversion code (TDMT_INVc) in this study. The Green’s functions are computed by frequency wavenumber integration program. We utilized broadband waveform data recorded at a seismic station at Davao; the station code is DAV. The waveform data were retrieved from the Incorporated Research Institutions for Seismology-Data Management Center (IRIS-DMC). We analyzed two earthquakes that occurred near station DAV. They are the events that occurred on September 18, 2009 (Mw 5.7) and May 31, 2010 (Mw 5.9). We used three one-dimensional crust structure models to compute Green’s functions. They were model iasp91 and the two other models (J1 and S1) from CRUST 2.0. The obtained solutions of the focal mechanisms were compared to the Global CMT. In terms of focal mechanisms and variance reductions, we obtained better solutions when we used model J1 as a crust structure. We performed inversions over a range of source depth. The variations of variance reductions as a function of depths show the clear peaks, which suggests that it is possible to determine a good focal depth. It is difficult to have a tight constraint for focal depth using the variance of residuals divided by the percent double-couple in our analyses. Since another seismic station in the study area has been upgraded to a broadband station recently, it will be possible to improve the accuracy of focal mechanism determination by the procedure used in this study.