Station AV18

Last observation

Dec 15, 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	-9.39	0.18	2024-12-15	84.62	0.47	2006.673511	2006	247
East	8.06	0.20	2024-12-15	-72.70	0.45	2006.673511	2006	247
Up	-1.92	0.34	2024-12-15	11.39	1.37	2006.673511	2006	247

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	-1.93	1.42	-1.87	1.34	-0.41	4.53	earthquake	7.1	us10004gqp	28.5
2018-01-23	2018.06023	-0.43	1.43	-0.84	1.35	-8.45	4.69	earthquake	7.9	us2000cmy3	453.9
2018-11-30	2018.9117	1.06	0.5	0.13	0.47	1.57	1.58	earthquake	7	ak20419010	290.6
2020-07-22	2020.55578	-1.07	0.5	-1.41	0.47	4.11	1.58	earthquake	7.8	at00qdux98	573.2
2020-10-19	2020.79945	-1.1	0.5	-1.77	0.47	0.92	1.59	earthquake	7.6	us6000c9hg	651.3
2021-07-29	2021.57221	-7.04	1.4	3.81	1.33	2.71	4.39	earthquake	8.2	ak0219neiszm	523.3

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)
2016-01-24	2016.06297	0.99	0.49	0.0001	0.83	0.47	0.0001	1.91	1.41	0.0001
2018-01-23	2018.06023	2.18	0.49	0.0001	-2.15	0.48	0.0001	2.17	1.49	0.0001
2021-07-28	2021.57221	0.83	0.48	0.0001	-1.67	0.46	0.0001	-0.61	1.34	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	2006.673511	2006	247	-1.27	0.08	0.11	0.08	-0.25	0.06	-0.10	0.06	0.17	0.02	-0.01	0.02	0.04	0.02	0.10	0.02
East	2006.673511	2006	247	0.44	0.08	-0.74	0.08	-0.26	0.05	0.35	0.05	-0.05	0.02	0.02	0.02	-0.03	0.02	-0.03	0.02
Up	2006.673511	2006	247	0.47	0.26	2.56	0.26	0.71	0.19	-0.57	0.19	0.15	0.09	0.06	0.09	0.10	0.09	-0.03	0.09

ITRF2014