Station OPCL

Last observation

Jan 29, 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	6.06	0.17	2022-01-28	-133.16	3.42	1999.898015	1999	329
East	-4.22	0.18	2022-01-28	5.24	3.45	1999.898015	1999	329
Up	0.72	0.33	2022-01-28	-75.27	8.73	1999.898015	1999	329

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)
2010-04-04	2010.25462	-4.98	0.49	0.62	0.46	1.24	1.45	earthquake	7.2	ci14607652	255.5
2014-08-15	2014.61875	-1.32	0.58	0.94	0.56	-0.56	1.61	antenna
2019-07-04	2019.50376	1.08	0.49	1.08	0.5	-0.35	1.14	earthquake	6.4	ci38443183	179.1
2019-07-06	2019.50924	1.08	0.49	1.08	0.5	-0.35	1.14	earthquake	7.1	ci38457511	190

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	0.85	1.70	1.00	0.50000	2.00000	1	0.000	2.00	0.50
East	0.84	1.40	1.00	0.50000	2.00000	1	0.000	2.00	0.60
Up	3.20	6.40	1.00	0.50000	2.00000	1	0.000	2.00	0.50

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)
1999-10-15	1999.7885	13.98	1.01	0.0001	7.84	1.03	0.0001	13.52	2.4	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	1999.898015	1999	329	-0.07	0.08	0.66	0.08	0.04	0.05	-0.06	0.05					0.03	0.02	0.03	0.02
East	1999.898015	1999	329	0.74	0.07	0.59	0.07	0.30	0.05	-0.02	0.05					0.08	0.02	0.03	0.02
Up	1999.898015	1999	329	-1.11	0.24	-0.21	0.24	0.58	0.18	-0.95	0.18					0.09	0.08	-0.30	0.08

ITRF2008