Station AC76

Last observation

Dec 16, 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	2.04	0.17	2024-12-16	-12.27	0.49	2008.451745	2008	166
East	5.85	0.18	2024-12-16	-49.66	0.46	2008.451745	2008	166
Up	3.74	0.31	2024-12-16	-32.84	1.53	2008.451745	2008	166

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)
2008-09-13	2008.70089	0.29	0.5	1.69	0.48	2.09	1.57	antenna
2018-01-23	2018.06023	-4.41	0.49	-2.68	0.47	-1.37	1.49	earthquake	7.9	us2000cmy3	850.8
2018-11-30	2018.9117	0.52	0.49	0.32	0.46	1.51	1.48	earthquake	7	ak20419010	396.1
2020-07-22	2020.55578	-2.16	0.49	-0.11	0.47	1.36	1.5	earthquake	7.8	at00qdux98	1242.8
2021-07-29	2021.57221	-0.88	0.56	-1.08	0.53	-1.59	1.71	earthquake	8.2	ak0219neiszm	1190.5

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

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	2008.451745	2008	166	-0.64	0.09	2.58	0.09	-0.55	0.06	0.26	0.06	0.15	0.03	-0.03	0.03	-0.09	0.03	-0.04	0.03
East	2008.451745	2008	166	0.34	0.09	0.84	0.09	-0.13	0.06	0.15	0.06	0.06	0.03	0.10	0.03	0.03	0.03	0.05	0.03
Up	2008.451745	2008	166	-1.25	0.29	1.70	0.29	-0.10	0.22	0.06	0.22	-0.09	0.10	0.15	0.10	-0.08	0.10	0.00	0.10

ITRF2014