Table 3

Station-Instrument Histories


INSTRUMENT C7A
FBA: Natural frequency = 85 Hz
Damping = 0.55 critical
Coil constant = 0.0068
Anti-alias filter: 50 Hz, 30 dB/octave

TIME       GAIN(dB)CLOCK CORR.(sec)
Ch1Ch2Ch3
0151952242424-0.0024
0161803181818-0.0133
0171511181818-0.0177
0181904181818-0.0142
0192025181818-0.0135
0201635181818-0.0116
0211611181818-0.0081
0221735-0.0001

 
INSTRUMENT C7V
VEL: Natural frequency = 2 Hz
Damping = 0.60 critical
Coil constant = 0.5
Anti-alias filter: 50 Hz, 30 dB/octave

TIME       GAIN(dB)CLOCK CORR.(sec)
Ch1Ch2Ch3
0151953181818-0.0024
0161804242424-0.0093
0171609242424-0.0136
0181904242424-0.0192
0181905242424-0.0172
0192152303030-0.0146
0201643303030-0.0123
0211608363636-0.0109
0221735-0.0095

 
INSTRUMENT C8A
FBA: Natural frequency = 85 Hz
Damping = 0.55 critical
Coil constant = 0.0068
Anti-alias filter: 50 Hz, 30 dB/octave

TIME       GAIN(dB)CLOCK CORR.(sec)
Ch1Ch2Ch3
0161917181818-0.0072
0171636181818+0.0349
0181831181818+0.0717
0191950181818+0.1957
0201659181818+0.2673
0211817181818+0.3455
0221715+0.4232

 
INSTRUMENT C8V
VEL: Natural frequency = 2 Hz
Damping = 0.60 critical
Coil constant = 0.5
Anti-alias filter: 50 Hz, 30 dB/octave

TIME       GAIN(dB)CLOCK CORR.(sec)
Ch1Ch2Ch3
0161917242424-0.0072
0171637242424-0.0051
0191953303030+0.0117
0201702303030+0.0232
0211315363636+0.0372
0221715+0.0507

 
INSTRUMENT C7V
VEL: Natural frequency = 2 Hz
Damping = 0.60 critical
Coil constant = 0.5
Anti-alias filter: 70 Hz, 30 dB/octave

TIME       GAIN(dB)CLOCK CORR.(sec)
Ch1Ch2Ch3
0162045240000-0.0077
0171721303030+0.0033
0181932303030-0.0119
0182105303030-0.0123
0191756303030-0.0073
0201553303030+0.0004
0211544303030+0.0097
0222008+0.0150

 
INSTRUMENT CBA
VEL: Natural frequency = 85 Hz
Damping = 0.55 critical
Coil constant = 0.0068
Anti-alias filter: 50 Hz, 30 dB/octave

TIME       GAIN(dB)CLOCK CORR.(sec)
Ch1Ch2Ch3
0192110242424-0.0227
0201725242424-0.0364
0211720181818-0.0447
0221610-0.0532


U.S. Geological Survey

Open-File Report 82-777

Local Multi-Station Digital Recordings of
Aftershocks of the January 9th, 1982
New Brunswick Earthquake