Station P221

Last observation

Nov 2, 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	28.14	0.12	2024-11-02	-218.88	0.58	2007.772074	2007	283
East	-21.14	0.15	2024-11-02	161.76	0.74	2007.772074	2007	283
Up	-0.47	0.60	2024-11-02	0.80	1.99	2007.772074	2007	283

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)
2007-10-31	2007.82957	1.13	1.04	0.02	1.28	-3.37	3.48	earthquake	5.5	nc40204628	30.7
2011-04-30	2011.3258	1.02	0.46	1.84	0.6	-2.85	1.79	antenna
2014-08-24	2014.64339	0.87	0.47	0.53	0.6	0.29	1.79	earthquake	6	nc72282711	99.2
2018-02-01	2018.08487	0.13	0.47	1.15	0.6	1.31	1.8	antenna
2019-07-06	2019.50924	0.02	1.32	-1.55	1.67	-2.15	4.88	earthquake	7.1	ci38457511	438.4
2022-10-25	2022.81314	0.94	0.46	-0.85	0.59	-1.89	1.78	earthquake	5.1	nc73799091	38

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	0.60	2.57	1.00	0.50000	2.00000	1	0.000	2.00	0.01
East	0.62	3.45	1.00	0.50000	2.00000	1	0.000	2.00	0.01
Up	1.84	8.14	1.00	0.50000	2.00000	1	0.000	2.00	1.32

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)
2007-10-31	2007.83231	-0.84	0.33	0.0001	-0.5	0.41	0.0001	0.79	1.21	0.0001
2019-07-05	2019.50924	-0.03	0.41	0.0001	-0.05	0.53	0.0001	0.52	1.69	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	2007.772074	2007	283	-1.20	0.09	0.22	0.09	-0.16	0.07	0.19	0.07	-0.04	0.03	-0.10	0.03	0.01	0.03	0.03	0.03
East	2007.772074	2007	283	-0.68	0.12	0.56	0.12	-0.26	0.09	0.20	0.09	0.10	0.03	-0.11	0.03	0.09	0.03	0.02	0.03
Up	2007.772074	2007	283	1.48	0.34	-0.33	0.35	0.37	0.24	1.06	0.24	-0.15	0.09	0.04	0.09	-0.34	0.08	-0.32	0.08

ITRF2014