Station WLSN

Last observation

Nov 20, 2024(2 days ago)

Closest stations

5 closest stations in all 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	21.32	0.32	2024-11-20	-282.37	7.69	2000	2000	1
East	-23.72	0.42	2024-11-20	282.88	9.91	2000	2000	1
Up	-0.09	0.83	2024-11-20	-53.19	20.40	2000	2000	1

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)
2010-04-04	2010.25462	0.02	0.77	-1.09	0.95	-0.98	2.16	earthquake	7.2	ci14607652	335.4
2011-04-30	2011.3258	3.82	1.03	1.67	1.21	-5.26	2.87	antenna
2011-06-08	2011.43258	-1.52	0.82	-2.32	0.99	7.14	2.34	antenna
2019-07-04	2019.50376	1.45	1.43	0.68	1.92	3.69	4.43	earthquake	6.4	ci38443183	171.6
2019-07-06	2019.50924	2.04	2.27	-1.34	2.98	-5.08	6.78	earthquake	7.1	ci38457511	175.8
2021-11-06	2021.846	4.91	2.43	-2.07	3.15	109.99	6.38	antenna

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	0.64	2.94	1.00	0.50000	2.00000	2	0.176	2.00	0.99
East	0.98	3.53	1.00	0.50000	2.00000	1	0.000	2.00	1.34
Up	2.36	7.90	1.00	0.50000	2.00000	2	0.573	2.00	2.51

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)
1999-10-15	1999.7885	4.61	2.21	0.0001	1.24	2.85	0.0001	8.59	5.8	0.0001
2019-07-05	2019.50924	1.22	0.79	0.0001	0.06	1.01	0.0001	0.25	2.23	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	2000	2000	1	1.66	0.15	1.72	0.15	0.14	0.11	-0.29	0.11	0.07	0.03	0.06	0.03	-0.01	0.03	-0.01	0.03
East	2000	2000	1	-0.23	0.16	1.82	0.16	0.06	0.10	0.01	0.10	0.06	0.04	0.15	0.04	-0.09	0.03	0.06	0.03
Up	2000	2000	1	0.34	0.41	4.61	0.42	-0.10	0.31	-1.14	0.31	0.00	0.08	-0.01	0.08	0.18	0.08	0.03	0.08

ITRF2014