Earthquake swdi: 01/04/2005 12:34:01 GMT, M=5.1, N4.05 E94.39, 30.0km depth, Bias: pga=0.00 pgv=0.00 Seismic Stations Explanation of Flags M - Manually flagged T - Outlier G - Amplitude off scale or below noise I - Incomplete data N - Not in list of known stations