Station PKDB

Last observation

May 2, 2023

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	30.97	0.14	2023-05-02	-419.61	0.47	1996.722793	1996	265
East	-22.33	0.15	2023-05-02	371.42	0.45	1996.722793	1996	265
Up	2.13	0.27	2023-05-02	-7.96	1.35	1996.722793	1996	265

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)
1999-07-29	1999.57221	2.77	0.5	-0.44	0.47	-18.43	1.57	antenna
1999-10-16	1999.7885	0.7	0.5	-1.12	0.47	0.36	1.56	earthquake	7.1	ci9108652	416.5
2003-12-23	2003.97467	-10.46	1.5	-7.5	1.56	4.14	5.03	earthquake	6.6	nc21323712	57.4
2004-09-28	2004.74196	-7.44	1.41	-13.72	1.34	6.66	4.5	earthquake	6	nc30228270	21.2
2009-09-23	2009.72553	1.7	0.79	-1	0.79	-8.49	1.95	other
2019-07-06	2019.50924	-0.62	0.48	-4.63	0.46	0.48	1.43	earthquake	7.1	ci38457511	266

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)
2003-12-22	2003.97467	-1.52	0.52	0.0001	-3.02	0.51	0.0001	-2.3	1.61	0.0001
2004-09-28	2004.74196	10.9	0.49	0.0001	-17.23	0.48	0.0001	1.26	1.46	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	1996.722793	1996	265	-0.84	0.07	0.55	0.07	0.26	0.05	-0.23	0.05	0.02	0.02	0.04	0.02	-0.01	0.02	0.01	0.02
East	1996.722793	1996	265	-1.14	0.07	0.69	0.07	-0.37	0.04	0.19	0.04	-0.06	0.02	0.10	0.02	0.00	0.02	0.14	0.02
Up	1996.722793	1996	265	-0.10	0.22	1.13	0.22	-0.69	0.16	2.03	0.16	0.04	0.08	0.09	0.08	0.36	0.08	-0.13	0.08

ITRF2014