Station HOLP

Last observation

Jan 28, 2022

Closest stations

5 closest stations in all networks

NA-fixed

Plots

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 observation	Intercept (mm)	Intercept standard deviation (mm)	Reference date	Reference year	Reference day of year
North	25.71	0.76	2022-01-28	-357.07	0.84	1995.298426	1995	110
East	-25.94	0.55	2022-01-28	370.79	0.86	1995.298426	1995	110
Up	-2.30	1.57	2022-01-28	23.44	2.52	1995.298426	1995	110

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)
1995-05-20	1995.38056	-7.77	0.85	-8.06	0.87	19.36	2.54	antenna
1999-10-16	1999.7885	1	1.21	-0.74	1.31	-0.67	4	earthquake	7.1	ci9108652	190.7
2002-03-19	2002.21081	22.24	0.84	-8.75	0.8	-31.8	2.35	other
2010-04-04	2010.25462	0.43	0.84	-1.13	0.85	0.05	2.45	earthquake	7.2	ci14607652	323.9
2012-10-13	2012.78303	3.28	0.84	0.22	0.85	-1.52	2.45	antenna
2019-07-04	2019.50376	8.2	40.82	19.35	33.54	42.18	93.64	earthquake	6.4	ci38443183	206.6
2019-07-06	2019.50924	8.2	40.82	19.35	33.54	42.18	93.64	earthquake	7.1	ci38457511	210.7
2021-06-24	2021.47639	8.2	40.82	19.35	33.54	42.18	93.64	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 noise	Amplitude of BP filtered noise (mm)	n₂ (spectral index of second power law)	Amplitude of second power law (mm/yr^(n₂/4))
North	0.71	1.46	1.00	0.50000	2.00000	1	0.000	2.00	3.58
East	0.71	2.15	1.00	0.50000	2.00000	1	0.000	2.00	2.54
Up	2.59	5.55	1.00	0.50000	2.00000	1	0.000	2.00	7.20

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	-0.55	0.54	0.0001	-0.01	0.54	0.0001	0.56	1.64	0.0001
2019-07-05	2019.50924	-3.53	28.45	0.0001	-12.88	23.33	0.0001	-28.52	65.13	0.0001

Seasonal

	Reference date	Reference year	Reference day of year	Amplitude of cosine (365.25-day period), mm	Standard deviation of cosine amplitude (365.25-day period)	Amplitude of sine (365.25-day period), mm	Standard deviation of sine amplitude (365.25-day period)	Amplitude of cosine (180.625-day period), mm	Standard deviation of cosine amplitude (180.625-day period)	Amplitude of sine (180.625-day period), mm	Standard deviation of sine amplitude (180.625-day period)	Amplitude of cosine (14.76-day period), mm	Standard deviation of cosine amplitude (14.76-day period)	Amplitude of sine (14.76-day period), mm	Standard deviation of sine amplitude (14.76-day period)	Amplitude of cosine (13.63-day period), mm	Standard deviation of cosine amplitude (13.63-day period)	Amplitude of sine (13.63-day period), mm	Standard deviation of sine amplitude (13.63-day period)
North	1995.298426	1995	110	1.40	0.19	-1.46	0.20	0.07	0.11	-0.11	0.11					-0.01	0.02	0.06	0.02
East	1995.298426	1995	110	-0.44	0.17	-1.16	0.17	-0.12	0.10	0.23	0.10					-0.09	0.02	0.05	0.02
Up	1995.298426	1995	110	3.29	0.46	-2.37	0.47	0.74	0.27	1.19	0.27					0.09	0.07	-0.03	0.07

ITRF2008

Plots

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 observation	Intercept (mm)	Intercept standard deviation (mm)	Reference date	Reference year	Reference day of year
North	14.91	0.56	2022-01-28	-212.49	0.90	1995.298426	1995	110
East	-38.20	0.50	2022-01-28	543.05	0.92	1995.298426	1995	110
Up	-2.86	1.52	2022-01-28	28.82	2.65	1995.298426	1995	110

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)
1995-05-20	1995.38056	-7.24	0.91	-8.99	0.94	20.33	2.67	antenna
1999-10-16	1999.7885	1.43	1.32	-1.29	1.43	-2.85	4.19	earthquake	7.1	ci9108652	190.7
2002-03-19	2002.21081	22.48	0.9	-8.51	0.86	-32.6	2.46	other
2010-04-04	2010.25462	0.44	0.9	-2	0.91	0.44	2.58	earthquake	7.2	ci14607652	323.9
2012-10-13	2012.78303	3.13	0.9	0.2	0.91	-1.45	2.58	antenna
2019-07-04	2019.50376	24.96	35.53	22.91	33.46	22.41	95.16	earthquake	6.4	ci38443183	206.6
2019-07-06	2019.50924	24.96	35.53	22.91	33.46	22.41	95.16	earthquake	7.1	ci38457511	210.7
2021-06-24	2021.47639	24.96	35.53	22.91	33.46	22.41	95.16	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 noise	Amplitude of BP filtered noise (mm)	n₂ (spectral index of second power law)	Amplitude of second power law (mm/yr^(n₂/4))
North	0.66	2.33	1.00	0.50000	2.00000	2	0.219	2.00	2.57
East	0.68	2.82	1.00	0.50000	2.00000	1	0.000	2.00	2.25
Up	2.48	6.74	1.00	0.50000	2.00000	1	0.000	2.00	6.87

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	-0.61	0.56	0.0001	0.1	0.58	0.0001	1.66	1.7	0.0001
2019-07-05	2019.50924	-14.51	24.69	0.0001	-15.45	23.23	0.0001	-13.69	66.13	0.0001

Seasonal

	Reference date	Reference year	Reference day of year	Amplitude of cosine (365.25-day period), mm	Standard deviation of cosine amplitude (365.25-day period)	Amplitude of sine (365.25-day period), mm	Standard deviation of sine amplitude (365.25-day period)	Amplitude of cosine (180.625-day period), mm	Standard deviation of cosine amplitude (180.625-day period)	Amplitude of sine (180.625-day period), mm	Standard deviation of sine amplitude (180.625-day period)	Amplitude of cosine (14.76-day period), mm	Standard deviation of cosine amplitude (14.76-day period)	Amplitude of sine (14.76-day period), mm	Standard deviation of sine amplitude (14.76-day period)	Amplitude of cosine (13.63-day period), mm	Standard deviation of cosine amplitude (13.63-day period)	Amplitude of sine (13.63-day period), mm	Standard deviation of sine amplitude (13.63-day period)
North	1995.298426	1995	110	1.55	0.19	-1.89	0.19	0.15	0.13	-0.05	0.13					-0.03	0.02	0.00	0.02
East	1995.298426	1995	110	-0.53	0.17	-1.23	0.17	-0.20	0.10	0.29	0.10					-0.11	0.03	0.05	0.03
Up	1995.298426	1995	110	2.88	0.47	-2.10	0.48	0.78	0.28	1.26	0.28					0.08	0.08	-0.07	0.08

Filtered

Plots

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 observation	Intercept (mm)	Intercept standard deviation (mm)	Reference date	Reference year	Reference day of year
North	25.63	0.84	2022-01-28	-298.71	0.60	1999.131417	1999	49
East	-26.05	0.49	2022-01-28	293.90	0.45	1999.131417	1999	49
Up	-2.36	2.27	2022-01-28	44.16	2.05	1999.131417	1999	49

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	0.66	0.76	0.03	0.65	2.5	3.15	earthquake	7.1	ci9108652	190.7
2002-03-19	2002.21081	20.63	0.55	-8.69	0.41	-33.99	1.96	other
2010-04-04	2010.25462	-0.09	0.55	-0.42	0.43	-2.73	1.96	earthquake	7.2	ci14607652	323.9
2012-10-13	2012.78303	2.49	0.55	0.27	0.43	-0.53	1.96	antenna
2019-07-04	2019.50376	-9.07	37.74	58.98	22.26	-54.77	102.35	earthquake	6.4	ci38443183	206.6
2019-07-06	2019.50924	-9.07	37.74	58.98	22.26	-54.77	102.35	earthquake	7.1	ci38457511	210.7
2021-06-24	2021.47639	-9.07	37.74	58.98	22.26	-54.77	102.35	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 noise	Amplitude of BP filtered noise (mm)	n₂ (spectral index of second power law)	Amplitude of second power law (mm/yr^(n₂/4))
North	0.60	0.00	1.00	0.50000	2.00000	3	0.530	2.00	3.74
East	0.60	0.01	1.00	0.50000	2.00000	2	0.130	2.00	2.19
Up	2.94	0.22	1.00	0.50000	2.00000	1	0.000	2.00	10.08

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	-0.05	0.37	0.0001	0.47	0.3	0.0001	0.61	1.4	0.0001
2019-07-05	2019.50924	7.92	26.37	0.0001	-40.19	15.55	0.0001	36.64	71.52	0.0001

Seasonal

	Reference date	Reference year	Reference day of year	Amplitude of cosine (365.25-day period), mm	Standard deviation of cosine amplitude (365.25-day period)	Amplitude of sine (365.25-day period), mm	Standard deviation of sine amplitude (365.25-day period)	Amplitude of cosine (180.625-day period), mm	Standard deviation of cosine amplitude (180.625-day period)	Amplitude of sine (180.625-day period), mm	Standard deviation of sine amplitude (180.625-day period)	Amplitude of cosine (14.76-day period), mm	Standard deviation of cosine amplitude (14.76-day period)	Amplitude of sine (14.76-day period), mm	Standard deviation of sine amplitude (14.76-day period)	Amplitude of cosine (13.63-day period), mm	Standard deviation of cosine amplitude (13.63-day period)	Amplitude of sine (13.63-day period), mm	Standard deviation of sine amplitude (13.63-day period)
North	1999.131417	1999	49	0.85	0.23	0.30	0.23	-0.11	0.17	-0.05	0.17					0.00	0.01	0.00	0.01
East	1999.131417	1999	49	0.02	0.12	-0.56	0.12	-0.03	0.08	-0.03	0.08					0.01	0.01	-0.03	0.01
Up	1999.131417	1999	49	3.56	0.51	2.10	0.51	-0.58	0.26	-0.22	0.26					0.04	0.06	-0.05	0.06

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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