If you look at the Online EarthQuake Arrival Predictor, it shows the 5.7 mag EQ in Japan, along with many others.  This is just the largest in the last day or so.  I've overlayed the predicted arrival time of the Rayleigh waves on the STS2 ground seismometers and the BS stage2 inertial sensors--see attached.  Unfortunately the IFO was not in lock at the time.

Anyway, need a bigger EQ still to assess the prediction as the Ground sensors.  Just to be more thorough, I shifted and extended the plot a little and now include the predicted arrival times of the P & S waves, second attachment.  I got rid of the Z ground seismometer and added the transmitted arm power for a IFO indicator.  Did the arrival of the p wave ring up the BS ISI?  Ehh I don't think so given the ground seismo unless the prediction is off by ~90 seconds.  But I think the prediction could be off by that much given the complexity of travel paths and assumptions of the velocitys.  With this data set I'd say the ISI is being beat around by the locking attempts, not by this red earthquake.