Earthquake rybr: 12/12/2004 16:03:36 GMT, M=5.5, S3.48 E145.18, 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