Earthquake yyan: 06/05/2005 08:28:50 GMT, M=5.7, N23.65 W108.37, 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