Station AV27

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	-2.39	0.20	2024-12-15	40.44	0.47	2008.588638	2008	216
East	-9.98	0.22	2024-12-15	63.41	0.45	2008.588638	2008	216
Up	8.35	0.40	2024-12-15	-49.42	1.40	2008.588638	2008	216

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)
2009-08-11	2009.6078	-6.21	0.64	5.09	0.63	-17.12	1.75	antenna
2014-06-23	2014.47365	-7.5	0.49	7.62	0.47	-4.64	1.51	earthquake	7.9	usc000rki5	979.3
2018-01-23	2018.06023	-25.21	0.52	2.77	0.47	35.22	1.48	earthquake	7.9	us2000cmy3	1000.4
2020-07-22	2020.55578	-7.96	1.69	2.93	1.56	10.5	5.99	earthquake	7.8	at00qdux98	403.5
2020-10-19	2020.79945	-5.32	1.89	-13.41	1.74	25.18	6.82	earthquake	7.6	us6000c9hg	328.1
2021-07-29	2021.57221	7.5	7.05	-3.89	6.98	115.19	19.76	earthquake	8.2	ak0219neiszm	450.8
2022-08-19	2022.62971	7.5	7.05	-3.89	6.98	115.19	19.76	antenna
2023-07-16	2023.53662	-0.84	0.84	4.3	0.79	11.47	2.66	earthquake	7.2	us7000kg30	256.9

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)
2020-07-22	2020.55578	1.42	0.62	0.0001	-0	0.58	0.0001	-1.13	2.13	0.0001
2020-10-19	2020.79945	4.77	0.75	0.0001	5.92	0.69	0.0001	-15.08	2.65	0.0001
2021-07-28	2021.57221	-7.67	3.47	0.0001	1.46	3.44	0.0001	-50.33	9.69	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	2008.588638	2008	216	-4.76	0.09	-3.89	0.10	3.73	0.07	0.71	0.07	-0.33	0.03	0.17	0.03	-0.01	0.03	-0.10	0.03
East	2008.588638	2008	216	2.66	0.09	-3.77	0.10	-2.92	0.06	0.07	0.06	0.17	0.03	-0.27	0.03	-0.28	0.03	-0.13	0.03
Up	2008.588638	2008	216	-34.61	0.29	-3.98	0.32	5.40	0.23	-1.25	0.23	1.13	0.11	0.77	0.11	0.20	0.11	-0.19	0.11

ITRF2014