Station TSEA

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
North4.840.162023-01-30-40.360.741999.5119781999188
East-5.210.182023-01-3089.900.701999.5119781999188
Up4.910.332023-01-30-65.752.651999.5119781999188

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)
1999-12-06 1999.92813 -7.7 0.98 3.27 0.95 5.99 3.05 earthquake 7 usp0009jj1 494.9
2001-01-10 2001.02464 -2.36 0.49 1.55 0.46 -6.96 1.52 earthquake 7 usp000a7f2 495.3
2001-07-28 2001.56947 -0.38 0.7 2.39 0.69 0.23 1.91 earthquake 6.8 usp000akb7 377.1
2002-10-23 2002.80767 -0.33 0.64 -0.11 0.59 -1.83 2.27 earthquake 6.7 usp000bf2u 278.9
2002-11-03 2002.83778 -0.37 1.43 -11.27 1.36 2.13 4.59 earthquake 7.9 usp000bg0m 288.9
2007-02-27 2007.15606 2.24 0.62 -8.75 0.6 10.77 1.71 antenna
2016-01-24 2016.06297 2.19 0.49 0.96 0.46 -0.65 1.45 earthquake 7.1 us10004gqp 259.3
2018-01-23 2018.06023 -3.11 0.49 -0.99 0.46 -2.68 1.46 earthquake 7.9 us2000cmy3 578.7
2018-11-30 2018.9117 9.38 1.41 -4.01 1.33 -22.93 4.53 earthquake 7 ak20419010 15.2
2020-07-22 2020.55578 0.85 0.5 0.1 0.47 -0.32 1.59 earthquake 7.8 at00qdux98 851.7
2020-10-19 2020.79945 0.42 0.5 -1.11 0.47 0.41 1.59 earthquake 7.6 us6000c9hg 930.9
2021-07-29 2021.57221 1.67 0.49 -1.15 0.47 -1.29 1.49 earthquake 8.2 ak0219neiszm 800.8

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)
2002-11-03 2002.83778 -2.79 0.5 0.0001 -2.61 0.48 0.0001 -1.51 1.44 0.0001
2018-11-30 2018.9117 2.67 0.48 0.0001 0.93 0.47 0.0001 0.76 1.41 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 (14.76-day period), mmStandard deviation of cosine amplitude (14.76-day period)Amplitude of sine (14.76-day period), mmStandard deviation of sine amplitude (14.76-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)
North1999.51197819991881.120.08-0.160.080.260.05-0.430.050.060.020.140.02
East1999.5119781999188-0.360.07-0.870.070.200.05-0.380.05-0.050.020.000.02
Up1999.5119781999188-0.960.244.390.24-1.790.18-0.280.180.170.08-0.180.08

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
North-12.430.252023-01-30275.740.512000.065708200025
East-15.440.262023-01-30298.680.492000.065708200025
Up3.360.602023-01-30-74.191.632000.065708200025

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)
2001-01-10 2001.02464 3.08 1.61 -1.65 1.62 -11.48 4.46 earthquake 7 usp000a7f2 495.3
2001-07-28 2001.56947 3.08 1.61 -1.65 1.62 -11.48 4.46 earthquake 6.8 usp000akb7 377.1
2002-10-23 2002.80767 3.08 1.61 -1.65 1.62 -11.48 4.46 earthquake 6.7 usp000bf2u 278.9
2002-11-03 2002.83778 3.08 1.61 -1.65 1.62 -11.48 4.46 earthquake 7.9 usp000bg0m 288.9
2007-02-27 2007.15606 -13.43 2.02 -10.23 2.08 14.78 5.21 antenna
2016-01-24 2016.06297 1.08 0.5 0.76 0.47 -0.36 1.53 earthquake 7.1 us10004gqp 259.3
2018-01-23 2018.06023 -4.3 0.5 -1.01 0.47 -1.15 1.51 earthquake 7.9 us2000cmy3 578.7
2018-11-30 2018.9117 12.98 1.43 -3.28 1.36 -25.31 4.65 earthquake 7 ak20419010 15.2
2020-07-22 2020.55578 0.55 0.51 -0.1 0.48 0.52 1.62 earthquake 7.8 at00qdux98 851.7
2020-10-19 2020.79945 0.37 0.51 -0.55 0.47 -0.16 1.62 earthquake 7.6 us6000c9hg 930.9
2021-07-29 2021.57221 1.23 0.5 -1.03 0.47 1.04 1.52 earthquake 8.2 ak0219neiszm 800.8

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)
2002-11-03 2002.83778 -8.61 1.75 0.0001 -0.11 1.78 0.0001 9.58 4.7 0.0001
2018-11-30 2018.9117 1.22 0.5 0.0001 0.77 0.48 0.0001 1.68 1.48 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 (14.76-day period), mmStandard deviation of cosine amplitude (14.76-day period)Amplitude of sine (14.76-day period), mmStandard deviation of sine amplitude (14.76-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)
North2000.065708200025-1.480.110.780.12-0.020.08-0.250.080.070.030.110.03
East2000.0657082000250.210.110.550.110.000.07-0.190.08-0.080.03-0.100.03
Up2000.065708200025-0.410.35-4.660.37-1.070.270.930.27-0.030.13-0.360.13

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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