Earthquake 33191: 1/23/2004 07:31:34 AKST, M=3.7, N63.59 W145.84, 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