Earthquake tiac: 01/16/2005 08:25:04 GMT, M=6.2, S25.54 W176.33, 16.0km 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