01 JobTime - event record time, Format: DD:MM:YY:HH:MM:SS
02 MS_EVENT_ID - only unique to this file list
03 MS_EVENT_TYPE - all are microearthquakes unless a perf shot
04 MS_LOC_SNR - location signal-to-noise ratio (SNR), based on scanning location stack, I use this one over MS_DET_SNR
05 MS_DET_SNR - signal SNR based on detection (e.g., STA/LTA)
06 QC_LOC_T0 - event computed origin time (s)
07 QC_LOC_X - event location east (m)
08 QC_LOC_Y - event location north (m)
09 QC_LOC_Z - event location depth (m), with respect to MSL, +up, -down
10 QC_DISTANCE - computed distance of event from the receiver array center (m)
11 QC_EIGVAL_MAX - location error ellipsoid, major axis length (m)
12 QC_EIGVAL_MID - location error ellipsoid, mid axis length (m)
13 QC_EIGVAL_MIN - location error ellipsoid, mimor axis length (m)
14 QC_EIGVEC_MAX_E - location error ellipsoid, unit vector major axis direction east
15 QC_EIGVEC_MAX_N - location error ellipsoid, unit vector major axis direction north
16 QC_EIGVEC_MAX_U - location error ellipsoid, unit vector major axis direction up
17 QC_EIGVEC_MID_E - location error ellipsoid, unit vector mid axis direction east
18 QC_EIGVEC_MID_N - location error ellipsoid, unit vector mid axis direction north
19 QC_EIGVEC_MID_U - location error ellipsoid, unit vector mid axis direction up
# the minimum axis direction can be computed as the cross product the major and mid axes
20 SP_RADIUS - spectral source parameter, radius (m)
21 SP_MOMENT - spectral source parameter, moment scalar (N m)
22 SP_POTENCY - spectral source parameter, potency (cubic meters)
23 SP_STRESS_DROP - spectral source parameter, static stress drop (Pa)
24 SP_MAGNITUDE - spectral source parameter, moment magnitude (using Hanks and Kanamori's: Mw = log10(Mo)/1.5 - 6.0, with Mo in N m)
25 SP_LOCAL_MAGNITUDE - local magnitude, not computed
26 SP_ENERGY - spectral source parameter, radiated seismic energy (J)