Earthquake smbk: 12/26/2004 06:22:02 GMT, M=5.5, N10.67 E92.33, 38.9km 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