Earthquake sgae: 12/20/2004 03:58:42 GMT, M=5.0, S15.20 W75.08, 17.9km 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