Station P287

NA2014

Plots

Plot showing NA2014 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
North33.090.872022-10-05-251.95141.81200720071
East-26.711.072022-10-05136.45172.48200720071
Up1.651.982022-10-05178.75324.34200720071

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 -0.34 0.48 -2.96 0.56 -2.83 1.46 earthquake 7.1 ci38457511 280.7
2020-08-07 2020.59959 -1.88 0.48 -1.37 0.56 -1.05 1.47 antenna

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))
North0.442.061.000.500002.0000010.0002.000.46
East0.522.041.000.500002.0000020.1762.000.65
Up1.447.511.000.500002.0000010.0002.000.38

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)
2003-12-23 2003.97467 30.78 125.05 0.0001 57.53 150.87 0.0001 -168.52 291.66 0.0001
2004-09-29 2004.74196 -27.52 96.69 0.0001 -47.77 116.39 0.0001 131.39 226.71 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)
North2007200710.400.091.480.090.200.06-0.050.06-0.010.02-0.040.02
East2007200710.520.130.830.130.310.10-0.050.10-0.020.02-0.120.02
Up200720071-0.600.28-0.990.28-0.310.20-0.620.20-0.360.070.310.07

ITRF2014

Plots

Plot showing ITRF2014 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
North21.001.262022-10-05-244.01204.04200720071
East-39.720.962022-10-0586.07156.75200720071
Up2.812.062022-10-05411.90338.25200720071

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 0.85 0.64 -3.16 0.65 -2.59 1.58 earthquake 7.1 ci38457511 280.7
2020-08-07 2020.59959 -1.97 0.64 -1.22 0.65 -0.67 1.58 antenna

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))
North0.512.691.000.500002.0000010.0002.000.72
East0.532.991.000.500002.0000020.2362.000.35
Up1.378.541.000.500002.0000010.0002.000.22

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)
2003-12-23 2003.97467 90.14 179.14 0.0001 172.35 139.67 0.0001 -382.07 304.98 0.0001
2004-09-29 2004.74196 -71.62 138.35 0.0001 -134.81 108.31 0.0001 297.77 237.21 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)
North2007200710.590.131.230.130.200.08-0.080.080.010.030.050.03
East2007200710.430.160.500.160.400.120.020.13-0.010.03-0.090.03
Up200720071-0.790.31-1.560.31-0.210.22-0.440.22-0.340.080.340.08

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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