Earthquake smad: 12/26/2004 01:48:49 GMT, M=5.8, N5.41 E94.46, 32.7km 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