Earthquake qgai: 10/31/2004 05:14:01 GMT, M=5.3, S4.61 E133.75, 19.1km 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