Parkfield Plots
Pore Pressure (past 7-days)
Pore pressure instruments measure water pressure in sealed aquifers accessed from boreholes typically at depths of several hundred feet.
RED lines display auto-processed data where upward trends indicate increasing pressure.
![](https://webarchive.library.unt.edu/eot2008/20081025152232im_/http://earthquake.usgs.gov/research/deformation/monitoring/lfplots/7day/PK-lc02-pp.gif)
![](https://webarchive.library.unt.edu/eot2008/20081025152232im_/http://earthquake.usgs.gov/research/deformation/monitoring/lfplots/7day/PK-sc02-pp.gif)
Plots updated on Sat Oct 25 15:00:55 UTC
Other Instruments
Instrument | Plots | |
---|---|---|
Creepmeters | past 7-days | past 30-days |
Dilatometers | past 7-days | past 30-days |
GTSM Tensor Strainmeters | past 7-days | past 30-days |
Pore Pressure | past 7-days | past 30-days |
The plots and data on this site are generated automatically and are not reviewed. They should not be used for engineering, legal, or any other critical applications.