Earthquake rqal: 12/04/2004 09:00:11 GMT, M=5.4, S3.41 E135.49, 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