Station COSO

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
North13.750.142020-10-28-148.950.591995.6433951995236
East-3.610.162020-10-2831.450.571995.6433951995236
Up-3.420.292020-10-2841.231.741995.6433951995236

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)
1996-04-30 1996.32854 -3.2 0.53 -1.3 0.5 -4.47 1.62 antenna
1999-10-16 1999.7885 -1.15 1.05 -4.6 0.98 -4.09 3.6 earthquake 7.1 ci9108652 207.7
2001-07-17 2001.53936 -5.98 0.49 14.38 0.46 3.18 1.46 other
2003-12-23 2003.97467 0.07 0.48 -0.26 0.46 -0.85 1.43 earthquake 6.6 nc21323712 299.1
2010-04-04 2010.25462 -1.86 0.82 0.61 0.83 -1.77 2.05 earthquake 7.2 ci14607652 470.9
2018-05-27 2018.39973 -0.32 0.54 0.12 0.51 -2.1 1.69 Reference Frame Change: IGb08 to IGS14
2019-07-04 2019.50376 -3.83 1.28 -0.01 1.21 -1.26 4.75 earthquake 6.4 ci38443183 41.2
2019-07-06 2019.50924 -27.95 1.84 -46.55 1.73 7.96 6.55 earthquake 7.1 ci38457511 30.3
2019-12-13 2019.9473 4.9 0.55 1.19 0.51 4.06 1.85 antenna
2020-05-15 2020.36961 0.41 0.6 -0.09 0.55 2.4 2.07 earthquake 6.5 nn00725272 241.7
2020-06-04 2020.42437 0.04 0.62 -0.25 0.57 -0.61 2.21 earthquake 5.5 ci39462536 53.4
2020-06-24 2020.47912 -1.13 0.58 -0.6 0.53 -1.93 2.01 earthquake 5.8 ci39493944 53.7

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 1999.79124 1.13 0.36 0.0001 0.93 0.34 0.0001 0.9 1.12 0.0001
2019-07-05 2019.50924 -3.83 0.54 0.0001 -8.62 0.51 0.0001 -3.14 1.77 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)
North1995.6433951995236-0.670.08-0.090.080.080.050.170.050.040.020.010.02
East1995.6433951995236-0.750.080.830.07-0.110.050.060.050.020.020.040.02
Up1995.6433951995236-0.740.250.350.24-0.810.180.870.18-0.020.09-0.220.09

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
North3.240.142020-10-28-32.230.591995.6433951995236
East-16.260.162020-10-28174.210.571995.6433951995236
Up-3.990.292020-10-2846.201.741995.6433951995236

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)
1996-04-30 1996.32854 -2.7 0.53 -1.74 0.5 -4.38 1.62 antenna
1999-10-16 1999.7885 -1.03 1.05 -5.54 0.98 -6.39 3.6 earthquake 7.1 ci9108652 207.7
2001-07-17 2001.53936 -5.89 0.49 14.53 0.46 2.91 1.46 other
2003-12-23 2003.97467 0.52 0.48 -0.64 0.46 -0.7 1.43 earthquake 6.6 nc21323712 299.1
2010-04-04 2010.25462 -2.23 0.82 -0.48 0.83 -1.23 2.05 earthquake 7.2 ci14607652 470.9
2018-05-27 2018.39973 -3.88 0.54 -0.46 0.51 -0.64 1.69 Reference Frame Change: IGb08 to IGS14
2019-07-04 2019.50376 -2.25 1.28 0.87 1.21 -4.08 4.75 earthquake 6.4 ci38443183 41.2
2019-07-06 2019.50924 -28.07 1.84 -45.48 1.73 17.3 6.54 earthquake 7.1 ci38457511 30.3
2019-12-13 2019.9473 4.95 0.55 2.13 0.51 10.29 1.82 antenna
2020-05-15 2020.36961 0.61 0.6 -0.68 0.55 2.6 2.07 earthquake 6.5 nn00725272 241.7
2020-06-04 2020.42437 0.37 0.62 -0.23 0.57 -0.46 2.21 earthquake 5.5 ci39462536 53.4
2020-06-24 2020.47912 -0.79 0.58 -0.33 0.53 -1.09 2.01 earthquake 5.8 ci39493944 53.7

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 1999.79124 1 0.36 0.0001 1.11 0.34 0.0001 1.82 1.12 0.0001
2019-07-05 2019.50924 -4.03 0.54 0.0001 -9.79 0.51 0.0001 -5.77 1.77 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)
North1995.6433951995236-1.060.080.100.08-0.040.050.180.05-0.030.020.030.02
East1995.6433951995236-0.770.080.940.07-0.150.05-0.030.050.020.020.070.02
Up1995.6433951995236-0.330.250.500.24-0.890.181.030.18-0.030.09-0.160.09

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
North13.480.162020-10-28-120.840.481999.262834199997
East-3.610.172020-10-2818.920.461999.262834199997
Up-3.940.312020-10-2839.291.461999.262834199997

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)
1999-10-16 1999.7885 2.18 1.06 -2.56 0.99 -1.4 3.64 earthquake 7.1 ci9108652 207.7
2001-07-17 2001.53936 -6.02 0.49 13.87 0.46 2.35 1.46 other
2003-12-23 2003.97467 0.36 0.49 0.6 0.46 -0.18 1.44 earthquake 6.6 nc21323712 299.1
2010-04-04 2010.25462 -0.63 0.83 0.21 0.83 1.04 2.08 earthquake 7.2 ci14607652 470.9
2018-05-27 2018.39973 -0.61 0.55 -0.56 0.52 1.12 1.7 Reference Frame Change: IGb08 to IGS14
2019-07-04 2019.50376 -7.58 1.28 -1.9 1.21 -0.84 4.75 earthquake 6.4 ci38443183 41.2
2019-07-06 2019.50924 -30.92 1.84 -46.49 1.73 3.82 6.56 earthquake 7.1 ci38457511 30.3
2019-12-13 2019.9473 7.95 0.55 4.77 0.51 0.68 1.88 antenna
2020-05-15 2020.36961 -1.59 0.6 -1.99 0.55 -11.79 2.11 earthquake 6.5 nn00725272 241.7
2020-06-04 2020.42437 -1.15 0.62 0.23 0.57 0.16 2.25 earthquake 5.5 ci39462536 53.4
2020-06-24 2020.47912 0.76 0.58 -0.61 0.53 2.72 2.01 earthquake 5.8 ci39493944 53.7

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 1999.79124 0.37 0.36 0.0001 0.62 0.34 0.0001 -0.35 1.12 0.0001
2019-07-05 2019.50924 -2.5 0.54 0.0001 -8.05 0.51 0.0001 -0.5 1.78 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)
North1999.262834199997-0.160.090.290.09-0.020.06-0.050.06-0.030.03-0.010.03
East1999.262834199997-0.110.080.020.080.100.050.070.060.040.02-0.030.02
Up1999.2628341999971.650.27-1.520.270.370.200.220.20-0.030.090.110.09

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.

« Back to LongValley Network