Earthquake mjaq: 08/20/2004 17:37:53 GMT, M=5.3, N23.86 E123.36, 24.2km 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