Station AC51

Last observation

Dec 17, 2024(3 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	-7.64	0.18	2024-12-17	75.05	0.47	2007.692676	2007	254
East	2.30	0.19	2024-12-17	-18.31	0.45	2007.692676	2007	254
Up	7.07	0.35	2024-12-17	-60.13	1.40	2007.692676	2007	254

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)
2008-07-11	2008.52567	-2.12	0.49	-0.75	0.47	-1.23	1.48	antenna
2016-01-24	2016.06297	-2.07	0.49	-1.2	0.46	-0.87	1.46	earthquake	7.1	us10004gqp	224.6
2018-01-23	2018.06023	-0.74	0.49	-1.96	0.46	-2.02	1.47	earthquake	7.9	us2000cmy3	630.9
2018-11-30	2018.9117	-2.31	1.42	-2.09	1.34	1.05	4.54	earthquake	7	ak20419010	104
2020-07-22	2020.55578	-0.61	0.5	0.07	0.47	2.56	1.6	earthquake	7.8	at00qdux98	818.9
2020-10-19	2020.79945	-0.11	0.51	-2.04	0.48	1.11	1.66	earthquake	7.6	us6000c9hg	893.5
2021-07-29	2021.57221	-0.87	0.5	-1.66	0.47	1.2	1.53	earthquake	8.2	ak0219neiszm	770.9

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)
2018-11-29	2018.9117	1.61	0.49	0.0001	0.31	0.47	0.0001	0.67	1.42	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	2007.692676	2007	254	-0.83	0.09	0.73	0.09	-0.56	0.06	0.02	0.06	0.02	0.03	-0.21	0.03	0.12	0.03	-0.02	0.03
East	2007.692676	2007	254	-0.19	0.08	0.08	0.08	-0.06	0.06	0.22	0.05	0.08	0.02	0.01	0.02	-0.06	0.02	0.03	0.02
Up	2007.692676	2007	254	4.90	0.27	5.65	0.27	0.22	0.20	-0.72	0.20	0.13	0.09	-0.20	0.09	-0.09	0.09	0.10	0.09

ITRF2014