Station HCMN

Last observation

Dec 21, 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	4.86	0.16	2024-12-21	-54.34	3.70	1999.939083	1999	344
East	-6.11	0.17	2024-12-21	131.67	3.77	1999.939083	1999	344
Up	-0.38	0.30	2024-12-21	-13.62	8.98	1999.939083	1999	344

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	-4.15	0.48	0.24	0.46	1.96	1.43	earthquake	7.2	ci14607652	293.4
2019-07-04	2019.50376	2.09	1.28	1.76	1.21	-2.36	4.74	earthquake	6.4	ci38443183	143.9
2019-07-06	2019.50924	-2.09	1.74	-0.61	1.66	2.29	5.94	earthquake	7.1	ci38457511	155
2021-12-15	2021.95277	3.22	0.48	3.21	0.46	-0.08	1.44	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	0.85	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)
1999-10-15	1999.7885	-1.21	1.07	0.0001	-10.23	1.1	0.0001	3.37	2.45	0.0001
2019-07-05	2019.50924	0.34	0.48	0.0001	0.81	0.46	0.0001	-0.26	1.35	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	1999.939083	1999	344	0.35	0.07	0.96	0.07	0.09	0.05	-0.15	0.05	-0.09	0.02	-0.04	0.02	0.04	0.02	0.01	0.02
East	1999.939083	1999	344	0.64	0.07	0.37	0.07	0.19	0.04	-0.01	0.04	-0.08	0.02	-0.15	0.02	0.08	0.02	-0.04	0.02
Up	1999.939083	1999	344	-0.97	0.22	0.35	0.22	0.41	0.16	-0.77	0.16	0.06	0.08	0.00	0.08	-0.20	0.08	-0.26	0.08

ITRF2014