Station UCD1

Last observation

Nov 24, 2024(2 days ago)

Closest stations

5 closest stations in all networks

This station is not in any other networks.

NA2014

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	8.79	0.17	2024-11-24	-140.31	0.60	1997	1997	1
East	-9.74	0.16	2024-11-24	159.40	0.64	1997	1997	1
Up	-10.75	1.14	2024-11-24	134.59	2.27	1997	1997	1

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)
1997-05-09	1997.35044	1.85	0.71	-1.26	0.76	17.78	2.82	antenna
2005-06-15	2005.45175	-0.54	0.61	-1.2	0.64	-0.75	2.37	earthquake	7.2	usp000dt25	471.7
2011-08-06	2011.59411	-0.3	0.61	-1.12	0.64	-2.33	2.37	antenna
2014-03-10	2014.18617	-0.19	0.62	-0.02	0.66	-1.12	2.37	earthquake	6.8	nc72182046	385.9
2014-08-24	2014.64339	-0.81	1.57	-0.82	1.63	6.59	6.14	earthquake	6	nc72282711	60.6
2019-07-06	2019.50924	-1.06	1.63	2.58	1.71	1.16	6.21	earthquake	7.1	ci38457511	479.6
2019-10-26	2019.81588	2.79	0.68	3.38	0.74	51.6	2.42	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	0.43	2.66	1.00	0.50000	2.00000	2	0.124	2.00	0.64
East	0.47	2.82	1.00	0.50000	2.00000	2	0.274	2.00	0.55
Up	1.46	8.31	1.00	0.50000	2.00000	1	0.000	2.00	5.23

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)
2014-08-23	2014.64339	0.41	0.57	0.0001	0.01	0.57	0.0001	-2.78	2.5	0.0001
2019-07-05	2019.50924	0.04	0.61	0.0001	-1.23	0.63	0.0001	0.57	2.55	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	1997	1997	1	2.04	0.11	1.40	0.11	-0.09	0.08	-0.32	0.08	0.00	0.02	0.07	0.02	0.00	0.02	-0.03	0.02
East	1997	1997	1	0.94	0.13	1.29	0.13	0.14	0.10	-0.20	0.10	-0.12	0.02	0.08	0.02	-0.01	0.02	-0.05	0.02
Up	1997	1997	1	5.60	0.41	12.00	0.41	-2.16	0.25	-3.21	0.25	-0.06	0.07	0.06	0.07	-0.13	0.06	0.18	0.06

ITRF2014