Station ASHL

Last observation

Nov 16, 2024(6 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	7.13	0.18	2024-11-16	-50.98	0.47	2007.251882	2007	93
East	-1.79	0.19	2024-11-16	12.43	0.45	2007.251882	2007	93
Up	-0.11	0.34	2024-11-16	-2.63	1.36	2007.251882	2007	93

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)
2010-01-10	2010.02464	-2.63	0.49	-0.38	0.46	-0.73	1.45	earthquake	6.5	nc71338066	239.6
2013-07-28	2013.56947	-1	0.49	-1.9	0.46	1.69	1.49	other
2014-03-10	2014.18617	-0.36	0.49	0.76	0.47	1.25	1.53	earthquake	6.8	nc72182046	254.6
2014-09-29	2014.74196	-0.02	0.48	0.08	0.46	-2.67	1.51	other
2015-05-14	2015.36413	3.39	0.49	-0.45	0.46	8.06	1.5	antenna
2022-12-20	2022.96646	1.87	1.45	-0.65	1.5	-18.28	3.49	earthquake	6.4	nc73821036	235.2

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

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	2007.251882	2007	93	0.54	0.09	0.14	0.09	-0.32	0.06	-0.04	0.06	-0.07	0.03	-0.03	0.03	-0.02	0.03	0.02	0.03
East	2007.251882	2007	93	2.17	0.09	-2.83	0.09	-0.85	0.06	0.08	0.06	-0.03	0.03	-0.20	0.03	0.10	0.03	-0.05	0.03
Up	2007.251882	2007	93	-3.33	0.28	-0.75	0.29	0.51	0.21	0.07	0.21	-0.01	0.10	-0.07	0.10	-0.38	0.10	-0.20	0.10

ITRF2014