Station WMDG

Last observation

Jan 17, 2022

Closest stations

5 closest stations in all networks

NA-fixed

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	15.89	2.14	2022-01-17	107.29	37.51	2014.498289	2014	183
East	21.43	2.19	2022-01-17	486.56	37.94	2014.498289	2014	183
Up	-3.81	5.38	2022-01-17	41.46	95.73	2014.498289	2014	183

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)
2019-07-06	2019.50924	0.31	0.52	-0.21	0.49	-0.87	1.65	earthquake	7.1	ci38457511	355.1

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	272.09	91.7	0.0001	1218.2	93.12	0.0001	129.95	231.55	0.0001
2010-04-03	2010.25462	-452.6	164.78	0.0001	-2077.39	166.9	0.0001	-108.53	418.99	0.0001
2012-08-26	2012.65161	131	59.56	0.0001	672.19	60.08	0.0001	-39.77	153	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	2014.498289	2014	183	-0.06	0.13	-1.37	0.14	0.18	0.10	0.36	0.10					0.04	0.04	0.08	0.04
East	2014.498289	2014	183	-0.27	0.13	0.32	0.13	0.37	0.09	-0.36	0.09					0.06	0.04	-0.22	0.04
Up	2014.498289	2014	183	1.49	0.42	-0.53	0.44	-1.08	0.32	-0.41	0.33					-0.59	0.16	0.07	0.16

ITRF2008

Plots

These plots depict the X, Y and Z 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	5.61	2.14	2022-01-17	101.20	37.47	2014.498289	2014	183
East	11.76	2.18	2022-01-17	545.45	37.91	2014.498289	2014	183
Up	4.11	5.37	2022-01-17	187.08	95.60	2014.498289	2014	183

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)
2019-07-06	2019.50924	1.36	0.52	-1.34	0.49	-1.46	1.65	earthquake	7.1	ci38457511	355.1

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	262.69	91.59	0.0001	1360.55	93.01	0.0001	480	231.14	0.0001
2010-04-03	2010.25462	-407.4	164.6	0.0001	-2333.33	166.72	0.0001	-749.71	418.32	0.0001
2012-08-26	2012.65161	102.65	59.5	0.0001	771.71	60.03	0.0001	197.06	152.81	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	2014.498289	2014	183	-0.26	0.13	-1.72	0.14	0.07	0.10	0.05	0.10					0.07	0.04	0.03	0.04
East	2014.498289	2014	183	-0.20	0.13	0.22	0.13	0.41	0.09	-0.43	0.09					0.03	0.04	-0.33	0.04
Up	2014.498289	2014	183	1.49	0.42	0.20	0.44	-0.87	0.32	-0.52	0.33					-0.56	0.16	0.08	0.16

Filtered

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	-12.05	2.15	2022-01-17	-294.95	37.58	2014.498289	2014	183
East	-3.87	2.21	2022-01-17	117.45	38.13	2014.498289	2014	183
Up	-9.05	5.39	2022-01-17	-53.97	95.73	2014.498289	2014	183

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)
2019-07-06	2019.50924	-3.47	0.52	0.32	0.49	-3.79	1.65	earthquake	7.1	ci38457511	355.1

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	-728.36	91.94	0.0001	299.63	93.72	0.0001	-105.21	231.56	0.0001
2010-04-03	2010.25462	1275.98	165.16	0.0001	-484.83	167.85	0.0001	298.51	418.99	0.0001
2012-08-26	2012.65161	-436.55	59.66	0.0001	144.47	60.34	0.0001	-174.47	153	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	2014.498289	2014	183	-1.01	0.13	-0.92	0.14	-0.76	0.10	-0.08	0.10					0.05	0.04	0.05	0.04
East	2014.498289	2014	183	-0.73	0.13	-0.55	0.13	-0.39	0.09	-0.07	0.09					0.05	0.04	-0.06	0.04
Up	2014.498289	2014	183	2.36	0.42	1.04	0.44	0.11	0.32	0.62	0.33					-0.46	0.16	-0.09	0.16

These results are preliminary. The station positions are unchecked and should not be used for any engineering applications. There may be errors in the antenna heights. The velocities are very dependent on the length of the span of observations. The presence of outliers (errant observations) sometimes contaminates the velocities.

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