Displacement Time Series

Example of detrended, combined and filtered NEU displacement time series in our new MGViz interface
  • The time series can be viewed on our new interactive tool MGViz
  • File headers contain estimated time series model parameters
  • All time series have outliers and jumps (non-coseismic offsets) removed
  • YYYYMMDD indicates the date that the tar file was created
  • For Global time series substitute "Global" for "WNAM"

Record of estimated coseismic displacements

NEU station time series tar files:

Western North America (WNAM)

Global

Different flavors of displacement time series

Top directory: ftp://garner.ucsd.edu/pub/timeseries/measures/ats/WesternNorthAmerica/

(1) NEU raw time series

Combined JPL & SIO: WNAM_Raw_TrendNeuTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_Raw_TrendNeuTimeSeries_jpl_YYYYMMDD.tar

SIO: WNAM_Raw_TrendNeuTimeSeries_sio_YYYYMMDD.tar

(2) NEU modeled time series

Combined JPL & SIO: WNAM_Clean_TrendNeuTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_Clean_TrendNeuTimeSeries_jpl_YYYYMMDD.tar

SIO:  WNAM_Clean _TrendNeuTimeSeries_sio_20200330.tar

Detrended:

Combined JPL & SIO: WNAM_Clean_DetrendNeuTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_Clean_DetrendNeuTimeSeries_jpl_YYYYMMDD.tar

SIO:  WNAM_Clean _DetrendNeuTimeSeries_sio_YYYYMMDD.tar

(3) NEU residual displacements

Combined JPL & SIO: WNAM_Clean_ResidNeuTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_Clean_ResidNeuTimeSeries_jpl_YYYYMMDD.tar

SIO:  WNAM_Clean _ResidNeuTimeSeries_sio_YYYYMMDD.tar

(4) PCA-filtered displacements for Western North America stations

Combined JPL & SIO: WNAM_Filter_TrendNeuTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_Filter_TrendNeuTimeSeries_jpl_YYYYMMDD.tar

SIO: WNAM_Filter_TrendNeuTimeSeries_sio_YYYYMMDD.tar

Detrended:

Combined JPL & SIO: WNAM_Filter_DetrendNeuTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_Filter_DetrendNeuTimeSeries_jpl_YYYYMMDD.tar

SIO: WNAM_Filter_DetrendNeuTimeSeries_sio_YYYYMMDD.tar

(5) ITRF2014 XYZ displacements

Raw time series - jumps uncorrected

Combined JPL & SIO: WNAM_RawJumps_TrendXYZTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_RawJumps_TrendXYZTimeSeries_jpl_YYYYMMDD.tar

SIO:  WNAM_RawJumps _TrendXYZTimeSeries_sio_YYYYMMDD.tar

Raw time series - jumps corrected

Combined JPL & SIO: WNAM_Raw_TrendXYZTimeSeries_comb_YYYYMMDD.tar

JPL: WNAM_Raw_TrendXYZTimeSeries_jpl_YYYYMMDD.tar

SIO:  WNAM_Raw _TrendXYZTimeSeries_sio_YYYYMMDD.tar

 

Examples of Displacement Time Series


Examples of daily North, East, Up displacement time series exhibiting tectonic and non-tectonic phenomena. A) Long Valley Caldera in three equi-angle directions; B) Central Valley; C) Southern California (the 2010 Mw7.2 El Mayor-Cucapah earthquake is denoted by the dashed blue vertical line). The Long Valley Caldera components have been detrended by the long-term velocity; other time series are shown trended. Source: (Klein et al. 2019).

 

Accumulated vertical displacement field between 1999.5 and 2018.6, represented with 2 different color scales to show the full extent of subsidence (right panel) in the Central Valley. The lowercase letters (left panel) indicate areas of significant secular and transient vertical motion (table below), Source (Klein et al. 2019).

Area Cumulative displacement
1999.5-2018
Cumulative displacement
2010-2018
Source
a. Cascadia Subduction +80 mm + 70 mm Tectonic
b. Mount Lassen -70 mm -60mm Magmatic
c. Sacramento Valley -225 mm -190 mm Tectonic
d. Coastal Ranges +90 mm +25 mm Tectonic
e. Central Valley -1700 mm -1150 mm Groundwater pumping + drought
f.  Sierra Nevada Ranges +160 mm +120 mm Tectonic
g. Long Valley Caldera +90 mm +90 mm Magmatic
h. Transverse Ranges +50 mm +25 mm Tectonic
i.  Eastern California Shear Zone +60 mm +25 mm 1999 Mw7.1 Hector Mine postseismic
j. Southern terminus SAF system -20mm (SE)/ +70 mm -10 mm (SE)/ +60 mm 2010 Mw7.2 El Mayor-Cucapah postseismic
k. Santa Maria Basin -120 mm -140mm Groundwater pumping
l. Ventura Basin -70 mm -45 mm Tectonic/ Groundwater pumping
m. Los Angeles/Santa Ana basin -20mm -35mm Groundwater pumping
n. Southern California -22mm -27mm Tectonic
o. South of Salton Sea -75mm -70mm Salton Sea Geothermal Field
p. North San Francisco Bay Area -45mm -25mm Tectonic/ Groundwater pumping
q. Northern Basin and Range ±30mm ±25mm Tectonic