Loma Prieta Appendix C: Sample data file

Appendix C - Sample data file converted to ASCII for export

Use of hour code (A = 00, B = 01, . . . X = 23) shortens export filenames by one character and makes them PC-compatible. For example: 3472355P4.GAO -> 347X55P4.GAO.

Headers:
I010 = Year
I011 = Day (1-366)
I012 = Hour (0-23)
I013 = Minute (0-59)
I014 = Second (0-59)
I015 = Millisecond (0-999)
I020 = GEOS serial number
I027 = GEOS channel number: first active
I028 = GEOS channel number: this file
I029 = GEOS channel number: total
I031 = Number of data blocks
I032 = Index of last sample in last data block
I040 = Sensor serial number
I041 = Vertical orientation (degree, measured down from 0 = up)
I042 = Horizontal orientation (degree, measured clockwise from 0 = north)
I254 = Recorded motion type (1 = acceleration, 2 = velocity)
R005 = Sample rate (sample/second)
R006 = Component sample lag (second)
R040 = Station latitude (degree)
R042 = Station longitude (degree)
R044 = Station elevation (meter, above sea level)
R046 = Digitizing constant (count/volt)
R047 = Anti-alias filter corner frequency (hertz)
R048 = Anti-alias filter rolloff (poles, 6 dB/octave per pole)
R049 = Sensor natural frequency (hertz)
R050 = Sensor damping (fraction of critical)
R051 = Sensor sensitivity (volt/ground-motion-unit)
R052 = Amplifier gain (dB)

Notes:
I010 through I015 and R006 specify the time of the first sample in the file
Total samples in file = ( I031 - 1 ) × 256 + I032
Ground motion = COUNTS / ( R046 × R051 × G ) where G = 2 ^{( R052 / 6 )}

<<< program XASCII >>>
GSRSX0::DU2:[261200]3472355P4.GAO;1 -> 347X55P4.GAO
Headers
I(010) =    1989
I(011) =     347
I(012) =      23
I(013) =      55
I(014) =      46
I(015) =     132
I(020) =      24
I(027) =       1
I(028) =       4
I(029) =       6
I(031) =      14
I(032) =     192
I(040) =     188
I(041) =       0
I(042) =       0
I(254) =       2
R(005) =   0.2000000E+03
R(006) =   0.2500000E-02
R(040) =   0.3697298E+02
R(042) =  -0.1215665E+03
R(044) =   0.6800000E+02
R(046) =   0.3276800E+04
R(047) =   0.5000000E+02
R(048) =   0.7000000E+01
R(049) =   0.2000000E+01
R(050) =   0.7000000E+00
R(051) =   0.5000000E+00
R(052) =   0.4200000E+02
Data block #00001
     1     4     0     0     6     7     3     4     7     6     1    -4    -8
    -5    -1    -1     0     8    11     6     6    10     7     2     2     5
     6     4     0    -1     1     2    -2    -4     2     5     0    -1     1
     1     0     3     5     6     7     4     0     2     2    -1     0     4
     0    -5    -1     5     3     0     2     4     3    -1    -5    -3     3
     1    -1     4    11     8     3     6     7     4     3     5     6     5
     2    -1    -1     0    -2    -3     1     1    -3    -2     2     3     0
     1     4     6     6     4     3     6     7     3     4     8     6     0
     1     2    -1    -6    -4     0     1    -2    -5    -1     3     0    -2
     2     6     2     0     6     8     6     8    12    12     8     2    -1
    -1    -3    -8   -10    -6    -4    -4    -1     4     6     7    11    12
    11     7     2     0     2     0    -3     0     6     2    -1     2     4
     1     0     2     2     1    -1    -2     1     4     2     2     8     9
     4     3     5     3     1     0    -1    -1    -1    -4    -4    -1     0
    -2     2     8     6     3     6     7     4     3     3     1     0    -3
    -5    -1     2     1     3     9     6     0     0     1    -2    -5    -2
     2     3     0     0     7    13    11     7    10     9     1    -3    -2
    -4    -6    -4     0     4     4     2     3     9    10     6     6     7
     3    -1     0     1    -1    -1     1     5     5     1    -1     1     2
     0     0     3     2    -1    -1     1    -1    -1
Data block #00002
     1     4     3     2     1     1     2     0     1     4     3    -1     0
     4     4     2     4     5     5     4     0    -2    -1    -1    -1     2
     8     6     3     7     9     4     2     3     2     0    -4    -6    -2
    -1    -2     3    12    13     9     9    10     7     2    -1    -3    -4
    -6    -7    -3     1     1     1     6    10     7     7     8     5     0
    -4    -4    -4    -6    -6     0     6     3     2     8    12     8     3
     4     2    -1    -2    -1    -1    -2    -4     0     4     2     0     4
     8     3     0     1     2    -1    -2     0     2     1     0     2     8
     8     5     6     8     5     0     0    -1    -3    -2     0     3     4
     3     5     9     8     1     3     5     2    -2    -4    -3    -2     0
     2     2     2     6    16    47   109   200   280   289   194    34  -118
  -199  -207  -233  -337  -436  -412  -303  -219  -104   139   333   258    71
    56   186   241   162    48   -14   -19    -2     5    -6   -47   -70   -23
    50    84    66    49    78   107    84    20   -32   -16    27    19   -21
   -51   -76   -87   -58   -14   -16   -33    44   172   117  -147  -308  -173
    45    91     4   -41     5    51    19   -54   -61    40   154   185   157
   160   203   191    43  -182  -310  -223   -58   -20   -72   -69   -52  -106
  -158   -98    35   133   167   181   164    69   -71  -148   -97    -3    27
     7     1    31    67    74    47    21    30    63    84    64     9   -36
   -67  -117  -147   -80    19    31   -10   -26   -41
Data block #00003
   -74   -56    23    79    71    47    45    45    47    50     1   -97  -130
   -37    60    23  -106  -172   -91    79   187   149    85   128   162    41
  -137  -205  -148   -49    20    45    53    64    84   120   149   139    53
   -92  -227  -297  -310  -297  -243  -101   116   295   299   139     5    19
    79    64    27    65   132   112     7   -76   -95   -88   -66    -2    87
   125    72   -39  -151  -200  -147   -27    83   140   147   112    28   -72
  -120   -93   -20    48    54   -34  -136  -126    31   189   176    45   -29
   -17   -17  -102  -209  -214   -86    67   133   105    64    90   186   259
   213    40  -161  -248  -192   -85    -7    17   -18   -68   -63   -16     0
   -12     7    59    95    91    64    35    12   -12   -40   -40     4    66
    83    33   -41   -93  -104   -67    25   116   128    66    -3   -54  -104
  -136  -100   -16    11   -46  -108   -81    32   129   136    74    32    77
   144   122     9   -86   -98   -74   -77   -94   -64    14    85    77   -15
   -97   -61    57   129    89     0   -48   -24    44    91    67   -10   -64
   -61   -30    -7     2     4    -4    -8    -6   -29   -63   -41    29    57
    15   -24    -7    51   115   122    32   -97  -156  -119   -56   -29    -2
    45    66    27   -12    25   110   115     0  -118  -113   -13    60    43
   -21   -75   -83   -52    -9    32    80   109    91    41    11    20    25
     1   -10    12    40    47    22   -32   -84   -77   -12    21   -30  -116
  -143   -70    35    69    35    19    47    57    21
Data block #00004
   -22   -33   -22   -26   -47   -40    12    56    40   -17   -65   -71   -39
    -1    12     1   -23   -31    -3    58   130   189   193   109    -5   -38
    31   116   142   113    55    -3   -49   -91  -144  -201  -212  -128    30
   176   225   166    75    62   137   173    75   -91  -210  -251  -244  -215
  -180  -140  -101   -68   -32    28   118   210   272   289   256   181    83
   -35  -186  -364  -496  -494  -359  -164    26   169   226   197   126    76
    76   114   152   168   168   142    63   -52  -161  -227  -261  -282  -272
  -183   -19   150   254   273   229   162   126   136   151   131    68     7
   -11    -7   -27   -69   -98  -101   -98  -101   -85   -38     8    18     1
    15    91   174   195   134    32   -50   -77   -45     0    -6   -83  -147
  -122   -55   -26   -38   -38    -9    20    44    81   102    65   -14   -93
  -144  -139   -81   -23   -10   -15     0     6   -39  -112  -136   -80    25
    94    98    97   143   206   229   213   171    93    -9   -86  -111  -108
  -108  -115  -137  -157  -138   -64    11    25    -8    -4    63   136   163
   158   149   138   119    83    12   -67  -113  -111   -89   -78   -97  -112
   -75   -11    11     0    17    65    92    68    31    31    66   103   108
    72    13   -35   -67   -94  -106   -92   -56   -15     8    -4   -56  -112
  -137  -124   -85   -30    15    25     4   -14   -20    -1    32    52    49
    53    83   124   150   142   104    72    61    37    -3   -29   -19     3
     2   -34   -78   -85   -58   -45   -54   -46    -5
Data block #00005
    35    48    40    36    50    79    88    54   -10   -60   -54   -11    15
    -3   -41   -62   -48   -26   -29   -51   -55   -34   -18   -18   -12     9
    34    46    42    42    59    91   125   135    99    30   -26   -55   -72
   -84   -81   -58   -25   -11   -20   -40   -48   -27    16    44    39    27
    24    19    17    22    11   -25   -36    -8    12    -3   -23   -15     0
    -9   -28   -27    -7     9     4    -7   -19   -31   -45   -48   -41   -29
   -11    14    41    60    61    48    39    42    56    77    91    80    45
    15     4     3   -10   -33   -44   -37   -35   -45   -49   -39   -25   -15
    -9    -8    -8    -5     1     4     8    24    45    46    26     7     1
     2     3    -5   -22   -25    -5    11     0   -22   -19    11    37    40
    28    11     1    -1     2     3    -2    -1    13    28    33    32    26
     7   -19   -29   -20   -10    -9    -4    15    32    20   -17   -51   -59
   -43   -21   -12    -8    -2     3     2    -5   -14   -16    -7    10    19
    13     1    -7   -17   -26   -24    -8    18    36    41    50    61    59
    36     9     1     7     7    -3   -15   -15   -19   -41   -59   -39     6
    29    13     1    24    57    54    17   -10   -13    -3     2     8    23
    32    16   -14   -30   -21    -4    -2   -18   -21     2    27    39    42
    41    30    19    15    13    12    11     7    -6   -21   -24   -21   -27
   -37   -35   -25   -20   -29   -37   -24     8    28    15    -8    -7    18
    40    32     3   -15   -18   -21   -30   -31   -12
Data block #00006
    14    28    20    -1   -14    -2    24    36    20     2     1    15    20
     4   -16   -13     8    17    -1   -20   -26   -30   -27    -4    25    40
    40    39    39    36    20    -7   -31   -34   -22   -18   -24   -24    -6
    12    23    28    25    16    12    14     5    -8    -6     9    17     7
    -6   -13    -8     0    12    21    26    24    15     2    -6    -5     3
     7     4     0     4     3    -4    -9    -2     0     0    -6   -11   -18
   -18    -6    11    18    17    23    33    35    31    25    17     4   -11
   -26   -35   -32   -21   -16   -20   -19    -7     0   -12   -21   -18    -9
    -9   -11     2    22    26     9    -5    -4     8    17    20    23    28
    25    13    -9   -28   -30   -18    -8    -3    -4   -13   -10    16    37
    29    12     8     8     2    -6    -7    -4    -3     1    13    20    18
    18    27    28    18    14    24    26     8   -12   -20   -17   -14   -15
   -22   -27   -19    -8    -4    -2     1    11    21    24    16    -1   -16
   -13     7    21    12    -4    -5    10    21    16     0    -8     0    13
    15    11     5    -4   -12   -11   -15   -25   -17     8    22    10   -13
   -30   -33   -22    -1    19    30    31    26    18    15    16     4   -13
   -20    -8    -1   -12   -27   -27   -14     6    33    47    33    10    -2
     0     3    -1    -8   -12   -18   -24   -22   -16   -13    -3    12    22
    21    20    29    44    43    28    13     4    -7   -14    -4     9     6
   -12   -25   -26   -20    -8     4    17    18     2
Data block #00007
   -21   -26    -1    27    31    31    44    45    14   -22   -35   -34   -41
   -46   -34    -7    14    19    11     5     8    12     8     5    11    18
    18     9     0    -4    -7    -8    -7    -6    -5    -5    -5     2    21
    35    27    11     5     7     5     2     4     8     6     0    -1     9
    18    13    -2   -10   -11   -10   -19   -26   -22    -2    15    17     4
    -8   -13    -9    -1    12    25    28    17     3    -8   -15   -14    -7
     1     8    17    30    29     9   -18   -30   -21    -7    -2    -3     0
     8    10     6     4    10    14     7    -4    -2    12    17     4    -8
   -11    -6     3    15    23    19     5    -4    -3     0    -8   -24   -27
    -6    19    29    16    -8   -26   -23    -8     6     5    -4    -8    -1
    11    19    22    17     8     2     6    13    14    11     4     0    -2
     0    -1    -3    -2     0    -2    -6    -8     0    16    29    25     7
    -7    -8    -4    -4    -3     1    10    17    11    -8   -24   -16     2
    14    15    15    11    -1   -11   -14   -16   -16   -12    -7    -6    -3
     9    22    25    21    16    16    14     6    -3    -8    -3     2    -1
   -12   -23   -24   -14    -2     4     8    14    19    15     8     2     1
     2     2     1     0    -1    -4    -8   -14   -19   -19    -9     8    24
    24     9    -3     0    13    18    13    12    13    10     0    -7    -5
    -3    -8   -17   -21   -11    15    35    30    13     1     0     4     7
    -1   -12   -14    -1     8    10    13    27    34
Data block #00008
    21     4    -4   -10   -17   -19   -14    -7    -4    -9   -26   -28    -3
    26    27    10     2     6    11    11    11     9     3    -3    -1     8
    15    11     6     9    11     3    -6    -6     1     5     3     4    12
    15     5    -5   -13   -10    -5    -4    -7    -8    -4     0     2     6
     9     9     6    -1    -6   -10   -11    -8    -4    -6   -10    -9    -1
     5     8     4     1     8    21    24     9    -4    -5    -1    -2    -3
    -1     6    12    12     8     9    14    15     7     0     5    11     8
     1     0    -1    -4    -7   -10    -5     7    24    28    16     1    -5
    -8   -10    -6    -1     0    -6   -12   -12    -6    -1    -1    -1    -1
     5    12    14    14    16    19    12     0    -4     2     4    -7   -23
   -26   -15    -1     0    -9   -16    -8     6    18    19    18    17     9
    -1    -5    -1     3     1    -1    -4    -8    -8    -1     6     9    13
    18    14     4    -1     0     0     1     2     0    -5    -6    -1     4
     6    12    19    19    12     9    10     5    -1    -5    -4    -1     3
     3    -2   -10    -4     2     1    -1     3     9     8     0    -6    -5
    -1     3     6     9     5     1     1     5     7     6     8    11    12
    10     5     1    -1    -4    -6    -4     0     4     4    -3   -16   -27
   -27   -18   -14   -11    -6     2    12    20    21    19    16    14    14
    16    20    19     6    -1     1     7     9     9     3    -8   -14    -8
    -4    -7    -7     2     7     7     5     7     7
Data block #00009
     6     5     4     3     6    10     7     0    -2    -3    -7   -11    -7
    -2    -4    -9    -8    -6    -4    -2     0     3     5     5     3     0
    -5    -8    -6     0     6    12    12     5     4     7    11    12     4
    -7   -15   -15    -8    -2    -1    -3    -3     2    14    20    19    10
     0    -3    -2     0     3    11    19    20    14     8     3     0     2
     3     5     5     5     3    -1    -9    -9     0     4     0    -1     0
    -1    -3    -4    -8   -12    -4    10    13     7     5    13    18    16
    13     5    -2    -4    -1     0    -1     0     4     7     7     4    -2
    -8    -7     0     8    13    13    10     5     2     0    -3    -3    -1
     0    -2    -6    -4     2     8    10    10     9     3    -7   -20   -26
   -16     1    12    11     2    -4    -6    -6    -6    -5     0     4     4
     2     3     0    -6    -6     0     7    10    14    16     9    -3    -8
    -2     6    14    16    12     2    -1     7    13    14    12     9     4
     1     3     3    -2    -2     2     2    -2    -1     7    11     6     3
     4     6     5     1    -3   -10   -13   -14   -12    -9    -2     6    11
     8     2     0     1     5     6     7     8     8     6     1    -2    -1
     0     1     0     0     1     1     0    -1    -1     0     4     7     7
     3     0     0     1    -2    -2     2     5     3     3     6     4    -3
    -1     4     5     2     8     7     0    -3    -1    -4   -10    -8    -1
     2     4     6    10    11    11     9     8     8
Data block #00010
    11    12     6     0     0     3     0    -2    -1     1     0    -2    -2
    -1    -1    -1     0     4     4     1     1     8    13    11     4     0
    -2    -2    -1    -1    -1    -2    -2     0     3     3    -1    -3    -4
    -3    -2     0     5     7     4    -1    -1     1     3     2     3    10
    19    21    14     5     0     0     1    -4   -11   -11    -7    -8    -7
    -1     2     0     2    10    13     9     7     8     8     8     6    -4
   -13    -9     1     4     3     5     9     8     3     0    -1     0     4
     9     7     4     4     6     3    -1    -2    -1    -1    -5    -4     0
     1     1     4     9    13    13    12    10     7     1    -5   -10   -10
    -7    -2    -1    -1    -2     0     0     1     3     5     7     8     7
     3    -2    -4    -4    -1     3     7     5     2     0     3     4     0
    -3    -1    -1     0     4     9     7     3     3     4     2     2     6
     8     4     1    -3    -6    -8    -3     1     1     2     8    10    10
    11    12    10     9    11     8    -2    -7    -4    -3    -4    -1     3
     1    -2    -1     0     4     3     0    -1    -2    -1     2     5     4
     3     2     0    -1    -1     2     8    11    10     7     4     1    -1
    -1     0     1     4     6     5     9     8     6     0    -2    -1     0
    -1    -4    -6    -5    -3     1     5     6     6     9     6    -2    -5
    -1    -2    -9    -8    -1     0     1     2     3     0     0     0     0
    -2     0     4     5     4     7    10     7     5
Data block #00011
     8    12     8     6     8     9     5     2     0    -2    -5    -1     3
     5     3     3     6     6     3    -1    -4    -4    -2     0     1     3
     3     1     3     6    10     9     6     3     0    -2    -1     1     6
     5     3    -1    -1    -1     0     3     4     3     4     4     2     0
    -1    -4    -5    -4     0     4     5     4    10    13     8    -1    -4
    -5   -10   -11    -4     0     1     5    11    10     8    10    10     6
     6    10     6     0    -5    -6   -10   -12    -6    -1     0    -1     0
     4     7     5     5     6     4     4     7    10    14    15    11     5
     2     2     2     3     3     0    -3    -6    -7    -7    -5    -3    -2
     1     8    13    14     9     3     0    -2    -4    -4    -5    -5    -4
     0     4     9    10    12    13    14     8     2     2     3     0    -2
    -4    -6   -12   -11    -4     0    -1     3     7     5     3     4     4
     0     0     5     5     0     0     2     2     2     8    11     8     2
     3     1    -6    -6    -1     2     3     3     3     4     2     0     0
     3     3     2     0    -2    -3    -2     1     7     9    10     8     8
     8     8     7     5     1    -3    -4    -4    -2    -3     0     4     6
     5     3     6     4     1    -1    -1    -1    -2     0     3     5     4
     4     8     8     3     1     2     2    -1    -2    -1    -1    -1     2
     4     4     5     8     7     0    -4    -5    -7    -7    -1     4     5
     6     8     6     2     4    10     7    -1    -2
Data block #00012
    -1    -1    -4    -3    -2    -1    -1     1     4     4     4     6     6
     3    -1    -3    -2    -1     0     0     2     2     1     2     7    13
    14    11     8     7     4     0    -1     0     0    -1    -1    -1     1
     0     0     0     0     0     1     0     0    -2     0     4     5     6
    11    16    10     4     5     5     0    -2     0     1     0     1     3
     2    -1    -3    -6    -7    -2     4     7     6     9     9     3    -4
    -4    -1     0    -1     0    -1    -3    -2     2     5     6     9    12
     8     6     4     4     3    -1    -4    -5    -2    -1    -1     0     2
     6     5     5     7     8     6     3     1     0     0    -1     0     0
    -1    -2    -2    -1    -1     0     3     5     7     9    12    10     6
     2     0    -1    -4    -7    -5    -1    -1     0     8     8     5     7
     7     2     0     1     4     0    -3    -3    -5    -8    -1     4     2
    -1     0     3     0    -2    -2    -1     0     4     7     8     7    10
    14    11     4     1     0    -1     0     3     6     6     4     2     2
     1     0    -2    -3    -4    -4    -2    -2    -1    -2    -2     0     7
    12    14    14    12     7     0    -6    -8    -7    -4     0     3     5
     8     8     6     3     2     2     1     0     0    -1    -3    -2     0
     4     8     6     6    10     8     1     0     4     1    -1     0     3
     0    -1     0     0    -1     3     8     6     3     7    10     2    -3
    -2     0    -2    -3     2     5     5     5     5
Data block #00013
     3     0     0     0    -1    -3    -1     0     3     4     4     6     8
     7     3     1     2     1    -1    -3    -3    -1    -1    -2    -1    -1
    -1     0     3     8    10     8     9     8     5     0    -2    -1    -1
     0     2     4     2     2     2     2     0     0     1    -1    -3     0
     6     4     0     1     4     3     5     8     8     6     6     6     2
    -2    -4    -3    -4    -4     0     3     2     4     9     8     3     4
     3    -1    -5    -2     2     2     2     6    10    10     9     6     3
     0    -2    -3    -5    -9    -9    -4     0     4     4     4     7     7
     4     0     0     0     0     0    -1    -2    -2    -1     2     4     5
     9     9     7     3     2     0    -2    -2     1     2     2     4     8
    10    10     7     5     4     1    -4    -6    -2    -2    -8    -4     2
     2     0     5    11     8     5     4     3     1     0     3    -1    -6
    -4     0     4     2     4     9    12    10    10     8     2    -3    -4
    -4    -5    -7    -6    -1     3     3     2     5     6     6     4     4
     0    -5    -8    -8    -6    -2     0     4     5     8     8     8     6
     4     4     4     3     0     0     3     4     6     9     9     7     4
     2     2     0    -3    -3     2     6     5     7    11     7     0     0
     5     3    -4    -8    -6    -7    -8    -4    -1    -1     1     7     8
     8    10     8     1    -4    -2    -1    -2     0     3     3     0     3
     6     7     7     8    10     6     0    -5    -5
Data block #00014
    -5    -6    -6    -4    -1     3     5     7     5     2     1     2     2
     1     0     0     0    -1    -2     0     4     4     3     5     7     9
     9     8     3     1    -1    -1    -2    -1    -1     0     0     2     2
     5     6     6     1     0     4     3     2     5     7     6     4     5
     5     2     0     0    -1    -4    -2     3     3     3     4     8     5
     2     3     3     1     2     4     0    -3    -2    -1    -4    -4     0
     3     1     4     7     7     4     1    -2    -4    -5    -6    -4    -3
    -2     0     4     6     6     6     4     4     6     7     5     3     3
     2     2     0     0     1     4     4     5     4     6     5     3     0
    -1    -3    -3    -1     0     1     1     1     2     7     8     5     5
     9     7     1     3     6     0    -4    -2     0    -2    -5    -2    -1
    -1     2     6     7     6     6     6     2     0     1     4     2     2
     4     3    -2    -1     1    -1    -5    -2     0    -1    -3     0     1
     1     2     5     8     9     7     6     4     3     3     3     0     0
     1     2     1     1     3     3     2     2     1     0

Figure C1: Plot of trace 3472355P4.GAO

Open-File Report 90-503

Digital Recordings of Aftershocks of the
17 October 1989 Loma Prieta, California, Earthquake