Station AC17

Last observation

Jan 27, 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	-8.73	0.56	2022-01-27	366.93	47.26	2006.668036	2006	245
East	1.92	0.58	2022-01-27	-136.62	49.18	2006.668036	2006	245
Up	13.96	1.34	2022-01-27	240.29	109.67	2006.668036	2006	245

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)
2016-01-24	2016.06297	-3.01	1.51	-4.26	1.41	12.91	5.04	earthquake	7.1	us10004gqp	127.3
2016-07-13	2016.53114	-3.38	0.52	-2.41	0.49	3.05	1.72	antenna
2018-01-23	2018.06023	0.2	0.5	-1.35	0.47	-3.36	1.53	earthquake	7.9	us2000cmy3	552.3
2018-11-30	2018.9117	1.43	1.45	-8.92	1.37	8.4	4.69	earthquake	7	ak20419010	153
2020-07-22	2020.55578	-1.17	0.55	-0.29	0.51	3.01	1.82	earthquake	7.8	at00qdux98	724
2020-10-19	2020.79945	-0.39	0.55	-1.92	0.51	0.45	1.82	earthquake	7.6	us6000c9hg	800
2021-07-29	2021.57221	-2.34	0.5	-1.54	0.47	-0.36	1.56	earthquake	8.2	ak0219neiszm	675.2

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)
2002-11-02	2002.83778	-59.73	10.28	0.0001	24.31	10.71	0.0001	-68.47	23.8	0.0001
2016-01-24	2016.06297	0.93	0.53	0.0001	1.93	0.51	0.0001	-4.86	1.68	0.0001
2018-11-29	2018.9117	-0.39	0.51	0.0001	2.39	0.49	0.0001	-1.27	1.51	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	2006.668036	2006	245	-0.53	0.09	-0.02	0.09	-0.18	0.06	-0.33	0.06					-0.03	0.03	0.09	0.03
East	2006.668036	2006	245	0.94	0.09	0.58	0.09	0.37	0.06	0.27	0.06					-0.02	0.02	-0.03	0.02
Up	2006.668036	2006	245	3.51	0.28	7.57	0.29	0.50	0.21	-0.24	0.21					0.21	0.10	-0.07	0.10

ITRF2008