Station WMDG

NA-fixed

Plots

Plot showing NA-fixed data (All data)

These plots depict the North, East and Up components of the station as a function of time. More detailed explanation »

Dashed vertical lines show offsets (when present) due to:

  • Green – antenna changes from site logs
  • Red – earthquakes
  • Blue – manually entered

Downloads

Velocities

Velocity (mm/yr)Velocity standard deviation (mm/yr)Last observationIntercept (mm)Intercept standard deviation (mm)Reference dateReference yearReference day of year
North15.892.142022-01-17107.2937.512014.4982892014183
East21.432.192022-01-17486.5637.942014.4982892014183
Up-3.815.382022-01-1741.4695.732014.4982892014183

Offsets

Decimal date N offset (mm) N uncertainty (mm) E offset (mm) E uncertainty (mm) U offset (mm) U uncertainty (mm) Type Earthquake magnitude Earthquake information Distance from epicenter (km)
2019-07-06 2019.50924 0.31 0.52 -0.21 0.49 -0.87 1.65 earthquake 7.1 ci38457511 355.1

Noise

White noise (mm)Amplitude of first power law (mm/yr^(n1/4))n1 (spectral index of first power law)Lower frequency limit for band-pass (BP) filtered noise (cycle/year)Upper frequency limit for band-pass (BP) filtered noise (cycle/year) Number of poles for BP filtered noiseAmplitude of BP filtered noise (mm)n2 (spectral index of second power law)Amplitude of second power law (mm/yr^(n2/4))
North0.851.701.000.500002.0000010.0002.000.50
East0.841.401.000.500002.0000010.0002.000.60
Up3.206.401.000.500002.0000010.0002.000.50

Post-seismic

Decimal date N log amplitude (mm) N log amplitude standard deviation (mm) N time constant (years) E log amplitude (mm) E log amplitude standard deviation (mm) E time constant (years) U log amplitude (mm) U log amplitude standard deviation (mm) U time constant (years)
1999-10-16 1999.7885 272.09 91.7 0.0001 1218.2 93.12 0.0001 129.95 231.55 0.0001
2010-04-04 2010.25462 -452.6 164.78 0.0001 -2077.39 166.9 0.0001 -108.53 418.99 0.0001
2012-08-27 2012.65161 131 59.56 0.0001 672.19 60.08 0.0001 -39.77 153 0.0001

Seasonal

Reference dateReference yearReference day of yearAmplitude of cosine (365.25-day period), mmStandard deviation of cosine amplitude (365.25-day period)Amplitude of sine (365.25-day period), mmStandard deviation of sine amplitude (365.25-day period)Amplitude of cosine (180.625-day period), mmStandard deviation of cosine amplitude (180.625-day period)Amplitude of sine (180.625-day period), mmStandard deviation of sine amplitude (180.625-day period)Amplitude of cosine (13.63-day period), mmStandard deviation of cosine amplitude (13.63-day period)Amplitude of sine (13.63-day period), mmStandard deviation of sine amplitude (13.63-day period)
North2014.4982892014183-0.060.13-1.370.140.180.100.360.100.040.040.080.04
East2014.4982892014183-0.270.130.320.130.370.09-0.360.090.060.04-0.220.04
Up2014.49828920141831.490.42-0.530.44-1.080.32-0.410.33-0.590.160.070.16

ITRF2008

Plots

Plot showing ITRF2008 data (All data)

These plots depict the X, Y and Z components of the station as a function of time. More detailed explanation »

Dashed vertical lines show offsets (when present) due to:

  • Green – antenna changes from site logs
  • Red – earthquakes
  • Blue – manually entered

Downloads

Velocities

Velocity (mm/yr)Velocity standard deviation (mm/yr)Last observationIntercept (mm)Intercept standard deviation (mm)Reference dateReference yearReference day of year
North5.612.142022-01-17101.2037.472014.4982892014183
East11.762.182022-01-17545.4537.912014.4982892014183
Up4.115.372022-01-17187.0895.602014.4982892014183

Offsets

Decimal date N offset (mm) N uncertainty (mm) E offset (mm) E uncertainty (mm) U offset (mm) U uncertainty (mm) Type Earthquake magnitude Earthquake information Distance from epicenter (km)
2019-07-06 2019.50924 1.36 0.52 -1.34 0.49 -1.46 1.65 earthquake 7.1 ci38457511 355.1

Noise

White noise (mm)Amplitude of first power law (mm/yr^(n1/4))n1 (spectral index of first power law)Lower frequency limit for band-pass (BP) filtered noise (cycle/year)Upper frequency limit for band-pass (BP) filtered noise (cycle/year) Number of poles for BP filtered noiseAmplitude of BP filtered noise (mm)n2 (spectral index of second power law)Amplitude of second power law (mm/yr^(n2/4))
North0.851.701.000.500002.0000010.0002.000.50
East0.841.401.000.500002.0000010.0002.000.60
Up3.206.401.000.500002.0000010.0002.000.50

Post-seismic

Decimal date N log amplitude (mm) N log amplitude standard deviation (mm) N time constant (years) E log amplitude (mm) E log amplitude standard deviation (mm) E time constant (years) U log amplitude (mm) U log amplitude standard deviation (mm) U time constant (years)
1999-10-16 1999.7885 262.69 91.59 0.0001 1360.55 93.01 0.0001 480 231.14 0.0001
2010-04-04 2010.25462 -407.4 164.6 0.0001 -2333.33 166.72 0.0001 -749.71 418.32 0.0001
2012-08-27 2012.65161 102.65 59.5 0.0001 771.71 60.03 0.0001 197.06 152.81 0.0001

Seasonal

Reference dateReference yearReference day of yearAmplitude of cosine (365.25-day period), mmStandard deviation of cosine amplitude (365.25-day period)Amplitude of sine (365.25-day period), mmStandard deviation of sine amplitude (365.25-day period)Amplitude of cosine (180.625-day period), mmStandard deviation of cosine amplitude (180.625-day period)Amplitude of sine (180.625-day period), mmStandard deviation of sine amplitude (180.625-day period)Amplitude of cosine (13.63-day period), mmStandard deviation of cosine amplitude (13.63-day period)Amplitude of sine (13.63-day period), mmStandard deviation of sine amplitude (13.63-day period)
North2014.4982892014183-0.260.13-1.720.140.070.100.050.100.070.040.030.04
East2014.4982892014183-0.200.130.220.130.410.09-0.430.090.030.04-0.330.04
Up2014.49828920141831.490.420.200.44-0.870.32-0.520.33-0.560.160.080.16

Filtered

Plots

Plot showing Filtered data (All data)

These plots depict the North, East and Up components of the station as a function of time. More detailed explanation »

Dashed vertical lines show offsets (when present) due to:

  • Green – antenna changes from site logs
  • Red – earthquakes
  • Blue – manually entered

Downloads

Velocities

Velocity (mm/yr)Velocity standard deviation (mm/yr)Last observationIntercept (mm)Intercept standard deviation (mm)Reference dateReference yearReference day of year
North-12.052.152022-01-17-294.9537.582014.4982892014183
East-3.872.212022-01-17117.4538.132014.4982892014183
Up-9.055.392022-01-17-53.9795.732014.4982892014183

Offsets

Decimal date N offset (mm) N uncertainty (mm) E offset (mm) E uncertainty (mm) U offset (mm) U uncertainty (mm) Type Earthquake magnitude Earthquake information Distance from epicenter (km)
2019-07-06 2019.50924 -3.47 0.52 0.32 0.49 -3.79 1.65 earthquake 7.1 ci38457511 355.1

Noise

White noise (mm)Amplitude of first power law (mm/yr^(n1/4))n1 (spectral index of first power law)Lower frequency limit for band-pass (BP) filtered noise (cycle/year)Upper frequency limit for band-pass (BP) filtered noise (cycle/year) Number of poles for BP filtered noiseAmplitude of BP filtered noise (mm)n2 (spectral index of second power law)Amplitude of second power law (mm/yr^(n2/4))
North0.851.701.000.500002.0000010.0002.000.50
East0.841.401.000.500002.0000010.0002.000.60
Up3.206.401.000.500002.0000010.0002.000.50

Post-seismic

Decimal date N log amplitude (mm) N log amplitude standard deviation (mm) N time constant (years) E log amplitude (mm) E log amplitude standard deviation (mm) E time constant (years) U log amplitude (mm) U log amplitude standard deviation (mm) U time constant (years)
1999-10-16 1999.7885 -728.36 91.94 0.0001 299.63 93.72 0.0001 -105.21 231.56 0.0001
2010-04-04 2010.25462 1275.98 165.16 0.0001 -484.83 167.85 0.0001 298.51 418.99 0.0001
2012-08-27 2012.65161 -436.55 59.66 0.0001 144.47 60.34 0.0001 -174.47 153 0.0001

Seasonal

Reference dateReference yearReference day of yearAmplitude of cosine (365.25-day period), mmStandard deviation of cosine amplitude (365.25-day period)Amplitude of sine (365.25-day period), mmStandard deviation of sine amplitude (365.25-day period)Amplitude of cosine (180.625-day period), mmStandard deviation of cosine amplitude (180.625-day period)Amplitude of sine (180.625-day period), mmStandard deviation of sine amplitude (180.625-day period)Amplitude of cosine (13.63-day period), mmStandard deviation of cosine amplitude (13.63-day period)Amplitude of sine (13.63-day period), mmStandard deviation of sine amplitude (13.63-day period)
North2014.4982892014183-1.010.13-0.920.14-0.760.10-0.080.100.050.040.050.04
East2014.4982892014183-0.730.13-0.550.13-0.390.09-0.070.090.050.04-0.060.04
Up2014.49828920141832.360.421.040.440.110.320.620.33-0.460.16-0.090.16

These results are preliminary. The station positions are unchecked and should not be used for any engineering applications. There may be errors in the antenna heights. The velocities are very dependent on the length of the span of observations. The presence of outliers (errant observations) sometimes contaminates the velocities.

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