Earthquake lpbg: 07/31/2004 14:44:22 GMT, M=4.7, N43.35 W126.81, 10km 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