Station UCD1

Last observation

Dec 25, 2024(1 day 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	8.83	0.16	2024-12-25	-140.65	0.60	1997	1997	1
East	-9.83	0.14	2024-12-25	159.54	0.64	1997	1997	1
Up	-10.90	1.09	2024-12-25	134.87	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	1.83	0.71	-1.22	0.76	17.82	2.82	antenna
2005-06-15	2005.45175	-0.53	0.61	-1.12	0.64	-0.74	2.37	earthquake	7.2	usp000dt25	471.7
2011-08-06	2011.59411	-0.29	0.61	-1.05	0.64	-2.3	2.37	antenna
2014-03-10	2014.18617	-0.16	0.62	0.03	0.65	-1.2	2.37	earthquake	6.8	nc72182046	385.9
2014-08-24	2014.64339	0.23	0.62	-0.78	0.65	0.3	2.37	earthquake	6	nc72282711	60.6
2019-07-06	2019.50924	-0.94	0.62	-0.49	0.66	2.44	2.38	earthquake	7.1	ci38457511	479.6
2019-10-26	2019.81588	2.81	0.62	2.74	0.66	51.7	2.38	antenna
2024-12-05	2024.92813	1.47	0.69	0	0	2.47	2.46	earthquake	7	nc75095651	347.6

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

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	2.05	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	-0.02	0.02
East	1997	1997	1	0.93	0.13	1.30	0.13	0.14	0.10	-0.21	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	12.03	0.41	-2.14	0.25	-3.19	0.25	-0.06	0.07	0.06	0.07	-0.12	0.06	0.18	0.06

ITRF2014