Earthquake wtbf: 04/11/2005 17:08:54 GMT, M=6.8, S22.04 E170.56, 67.6km 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