Earthquake whaf: 03/31/2005 01:39:05 GMT, M=6.0, S18.57 E176.03, 10.0km 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