Long Valley Caldera crustal deformation monitoring

This page examines GPS along with strainmeter data that monitor deformation across the Long Valley Caldera and surrounding region.

The goal is to evaluate the most recent data with previous data. This is done by estimating a rate of the current data and compare that with the rate of the previous data. In all of the plots of the data below, the change in rate, along with its standard error (1-sigma) is given. The residuals after removing the rate estimated for the previous data are plotted. For instance, if 100 days of data are evaluated, the current data is identified as the last 10 day while the previous data span the previous 90-day interval.

Summary of anomalies

The following summarizes the status of the suite of instruments monitoring the deformation across the Long Valley Area. Data are evaluated as follows:

Last 10 days compared to a baseline from the previous 100 days
Last 15 days compared to a baseline from the previous 1.5 years
Last 30 days compared to a baseline from the previous 2 years
Last 100 days compared to a baseline from the previous 6 years
Last 1 year compared to a baseline from the previous 10 years
Last 6 year compared to a baseline from the previous 16 years

If the number of time series for which a rate change is significant, the summary will list the anomalous time series; otherwise, the summary will state "no significant changes found".

10 days compared with previous 100 days

30 days compared with previous 2 years

The following exceed SNR 1.5 and at the 95% CI, the ensemble is significant
   The time span is  31  out of  730  days
   To be significant at the 95% CI, counts need to exceed 23
   Units in either mm/yr or nano-strain/yr
rdom e rate -125.8 +/- 20.0 snr 6.3
sawc e rate -89.0 +/- 24.3 snr 3.7
ca99 e rate -109.2 +/- 22.3 snr 4.9
mwtp e rate -80.4 +/- 26.2 snr 3.1
krac e rate -92.9 +/- 17.7 snr 5.2
p639 e rate -99.3 +/- 18.9 snr 5.3
p638 e rate -48.1 +/- 19.6 snr 2.5
shrc e rate -80.3 +/- 20.6 snr 3.9
knol e rate -73.4 +/- 25.3 snr 2.9
p631 e rate -80.6 +/- 19.5 snr 4.1
tilc e rate -73.8 +/- 18.7 snr 3.9
ddmn e rate -80.0 +/- 23.6 snr 3.4
p646 e rate -105.5 +/- 15.8 snr 6.7
hotk e rate -74.7 +/- 17.6 snr 4.2
p630 e rate -57.9 +/- 24.4 snr 2.4
bald e rate -78.6 +/- 15.7 snr 5.0
p634 e rate -69.2 +/- 26.8 snr 2.6
p642 e rate -59.1 +/- 20.8 snr 2.8
mins e rate -82.5 +/- 33.3 snr 2.5
p648 e rate -79.0 +/- 22.7 snr 3.5
p647 e rate -89.8 +/- 14.0 snr 6.4
p632 e rate -98.1 +/- 34.7 snr 2.8
pmtn n rate -29.6 +/- 16.5 snr 1.8
pmtn e rate -99.7 +/- 29.0 snr 3.4
p641 e rate -64.8 +/- 14.4 snr 4.5
p640 e rate -75.6 +/- 17.8 snr 4.2
p643 e rate -85.0 +/- 15.9 snr 5.3
p633 e rate -70.1 +/- 20.7 snr 3.4
watc e rate -69.2 +/- 15.1 snr 4.6
p635 n rate -28.6 +/- 18.9 snr 1.5
p635 e rate -79.2 +/- 33.8 snr 2.3
p637 e rate -66.6 +/- 34.2 snr 1.9
p644 e rate -83.4 +/- 22.6 snr 3.7
p645 e rate -81.3 +/- 16.4 snr 5.0
p723 e rate -64.2 +/- 27.8 snr 2.3
p636 e rate -87.0 +/- 33.8 snr 2.6
p629 e rate -88.3 +/- 45.8 snr 1.9
dech e rate -69.8 +/- 23.2 snr 3.0
p628 e rate -48.0 +/- 25.9 snr 1.9
p650 e rate -70.8 +/- 12.0 snr 5.9
p724 e rate -85.1 +/- 19.9 snr 4.3
p654 e rate -83.6 +/- 32.2 snr 2.6
p653 e rate -71.2 +/- 14.8 snr 4.8
 
The following exceed SNR 2.0 and at the 95% CI, the ensemble is significant
   The time span is  31  out of  730  days
   To be significant at the 95% CI, counts need to exceed 10
   Units in either mm/yr or nano-strain/yr
rdom e rate -125.8 +/- 20.0 snr 6.3
sawc e rate -89.0 +/- 24.3 snr 3.7
ca99 e rate -109.2 +/- 22.3 snr 4.9
mwtp e rate -80.4 +/- 26.2 snr 3.1
krac e rate -92.9 +/- 17.7 snr 5.2
p639 e rate -99.3 +/- 18.9 snr 5.3
p638 e rate -48.1 +/- 19.6 snr 2.5
shrc e rate -80.3 +/- 20.6 snr 3.9
knol e rate -73.4 +/- 25.3 snr 2.9
p631 e rate -80.6 +/- 19.5 snr 4.1
tilc e rate -73.8 +/- 18.7 snr 3.9
ddmn e rate -80.0 +/- 23.6 snr 3.4
p646 e rate -105.5 +/- 15.8 snr 6.7
hotk e rate -74.7 +/- 17.6 snr 4.2
p630 e rate -57.9 +/- 24.4 snr 2.4
bald e rate -78.6 +/- 15.7 snr 5.0
p634 e rate -69.2 +/- 26.8 snr 2.6
p642 e rate -59.1 +/- 20.8 snr 2.8
mins e rate -82.5 +/- 33.3 snr 2.5
p648 e rate -79.0 +/- 22.7 snr 3.5
p647 e rate -89.8 +/- 14.0 snr 6.4
p632 e rate -98.1 +/- 34.7 snr 2.8
pmtn e rate -99.7 +/- 29.0 snr 3.4
p641 e rate -64.8 +/- 14.4 snr 4.5
p640 e rate -75.6 +/- 17.8 snr 4.2
p643 e rate -85.0 +/- 15.9 snr 5.3
p633 e rate -70.1 +/- 20.7 snr 3.4
watc e rate -69.2 +/- 15.1 snr 4.6
p635 e rate -79.2 +/- 33.8 snr 2.3
p644 e rate -83.4 +/- 22.6 snr 3.7
p645 e rate -81.3 +/- 16.4 snr 5.0
p723 e rate -64.2 +/- 27.8 snr 2.3
p636 e rate -87.0 +/- 33.8 snr 2.6
dech e rate -69.8 +/- 23.2 snr 3.0
p650 e rate -70.8 +/- 12.0 snr 5.9
p724 e rate -85.1 +/- 19.9 snr 4.3
p654 e rate -83.6 +/- 32.2 snr 2.6
p653 e rate -71.2 +/- 14.8 snr 4.8
 
The following exceed SNR 3.0 and at the 95% CI, the ensemble is significant
   The time span is  31  out of  730  days
   To be significant at the 95% CI, counts need to exceed 1
   Units in either mm/yr or nano-strain/yr
rdom e rate -125.8 +/- 20.0 snr 6.3
sawc e rate -89.0 +/- 24.3 snr 3.7
ca99 e rate -109.2 +/- 22.3 snr 4.9
mwtp e rate -80.4 +/- 26.2 snr 3.1
krac e rate -92.9 +/- 17.7 snr 5.2
p639 e rate -99.3 +/- 18.9 snr 5.3
shrc e rate -80.3 +/- 20.6 snr 3.9
p631 e rate -80.6 +/- 19.5 snr 4.1
tilc e rate -73.8 +/- 18.7 snr 3.9
ddmn e rate -80.0 +/- 23.6 snr 3.4
p646 e rate -105.5 +/- 15.8 snr 6.7
hotk e rate -74.7 +/- 17.6 snr 4.2
bald e rate -78.6 +/- 15.7 snr 5.0
p648 e rate -79.0 +/- 22.7 snr 3.5
p647 e rate -89.8 +/- 14.0 snr 6.4
pmtn e rate -99.7 +/- 29.0 snr 3.4
p641 e rate -64.8 +/- 14.4 snr 4.5
p640 e rate -75.6 +/- 17.8 snr 4.2
p643 e rate -85.0 +/- 15.9 snr 5.3
p633 e rate -70.1 +/- 20.7 snr 3.4
watc e rate -69.2 +/- 15.1 snr 4.6
p644 e rate -83.4 +/- 22.6 snr 3.7
p645 e rate -81.3 +/- 16.4 snr 5.0
dech e rate -69.8 +/- 23.2 snr 3.0
p650 e rate -70.8 +/- 12.0 snr 5.9
p724 e rate -85.1 +/- 19.9 snr 4.3
p653 e rate -71.2 +/- 14.8 snr 4.8
 
The following exceed SNR 4.0 and at the 95% CI, the ensemble is significant
   The time span is  31  out of  730  days
   To be significant at the 95% CI, counts need to exceed 0
   Units in either mm/yr or nano-strain/yr
rdom e rate -125.8 +/- 20.0 snr 6.3
ca99 e rate -109.2 +/- 22.3 snr 4.9
krac e rate -92.9 +/- 17.7 snr 5.2
p639 e rate -99.3 +/- 18.9 snr 5.3
p631 e rate -80.6 +/- 19.5 snr 4.1
p646 e rate -105.5 +/- 15.8 snr 6.7
hotk e rate -74.7 +/- 17.6 snr 4.2
bald e rate -78.6 +/- 15.7 snr 5.0
p647 e rate -89.8 +/- 14.0 snr 6.4
p641 e rate -64.8 +/- 14.4 snr 4.5
p640 e rate -75.6 +/- 17.8 snr 4.2
p643 e rate -85.0 +/- 15.9 snr 5.3
watc e rate -69.2 +/- 15.1 snr 4.6
p645 e rate -81.3 +/- 16.4 snr 5.0
p650 e rate -70.8 +/- 12.0 snr 5.9
p724 e rate -85.1 +/- 19.9 snr 4.3
p653 e rate -71.2 +/- 14.8 snr 4.8
 
  Updated Tue Oct 26 22:54:56 UTC 2021

100 days compared with previous 6 years

The following exceed SNR 1.5 and at the 95% CI, the ensemble is significant
   The time span is  101  out of  2000  days
   To be significant at the 95% CI, counts need to exceed 23
   Units in either mm/yr or nano-strain/yr
rdom e rate -20.2 +/- 4.7 snr 4.3
rdom u rate -42.3 +/- 21.8 snr 1.9
sawc u rate -60.1 +/- 11.3 snr 5.3
ca99 n rate 13.6 +/- 6.1 snr 2.2
ca99 e rate -16.3 +/- 5.1 snr 3.2
mwtp u rate -47.2 +/- 22.5 snr 2.1
krac n rate -15.6 +/- 3.9 snr 4.0
krac e rate -16.9 +/- 4.7 snr 3.6
krac u rate -57.7 +/- 13.3 snr 4.3
p639 e rate -21.8 +/- 4.3 snr 5.1
p639 u rate -35.8 +/- 12.6 snr 2.8
p638 e rate 8.6 +/- 4.1 snr 2.1
p638 u rate -33.3 +/- 11.4 snr 2.9
shrc n rate 11.7 +/- 7.4 snr 1.6
shrc e rate -12.3 +/- 4.2 snr 2.9
shrc u rate -72.5 +/- 42.5 snr 1.7
knol n rate 11.1 +/- 5.1 snr 2.2
p631 e rate -12.3 +/- 5.1 snr 2.4
p631 u rate -49.2 +/- 28.9 snr 1.7
tilc n rate 11.6 +/- 4.9 snr 2.4
tilc e rate -22.8 +/- 5.7 snr 4.0
tilc u rate -63.9 +/- 13.4 snr 4.8
ddmn u rate -46.6 +/- 21.3 snr 2.2
p646 e rate -28.0 +/- 3.4 snr 8.2
p646 u rate -29.1 +/- 11.9 snr 2.4
hotk n rate 5.0 +/- 3.2 snr 1.6
hotk e rate -17.4 +/- 5.0 snr 3.5
hotk u rate -45.4 +/- 10.2 snr 4.5
p630 n rate 21.5 +/- 7.9 snr 2.7
p630 u rate -25.4 +/- 14.2 snr 1.8
bald n rate -8.5 +/- 5.3 snr 1.6
bald e rate -9.1 +/- 3.8 snr 2.4
bald u rate -23.5 +/- 10.7 snr 2.2
linc n rate 8.6 +/- 4.9 snr 1.8
p642 e rate -16.8 +/- 6.6 snr 2.5
p647 n rate -9.2 +/- 3.9 snr 2.4
p647 e rate -17.5 +/- 3.0 snr 5.8
p641 n rate -10.6 +/- 4.0 snr 2.6
p641 e rate -6.4 +/- 3.2 snr 2.0
p640 n rate -9.2 +/- 3.3 snr 2.8
p640 e rate -5.8 +/- 3.4 snr 1.7
p643 n rate 18.7 +/- 3.6 snr 5.2
p643 e rate -23.0 +/- 4.3 snr 5.3
p643 u rate -16.5 +/- 9.5 snr 1.7
p633 e rate -7.1 +/- 4.1 snr 1.7
watc e rate -11.7 +/- 3.2 snr 3.7
watc u rate -20.4 +/- 10.9 snr 1.9
p635 n rate -7.2 +/- 3.8 snr 1.9
p644 e rate -24.9 +/- 5.4 snr 4.6
p645 e rate -6.9 +/- 3.6 snr 1.9
p636 n rate -12.0 +/- 7.4 snr 1.6
p629 e rate 44.5 +/- 10.8 snr 4.1
dech u rate -19.9 +/- 11.5 snr 1.7
p650 e rate -8.5 +/- 2.6 snr 3.3
p724 e rate -10.7 +/- 4.4 snr 2.4
p654 e rate -11.1 +/- 7.3 snr 1.5
p653 e rate -9.0 +/- 2.9 snr 3.1
 
The following exceed SNR 2.0 and at the 95% CI, the ensemble is significant
   The time span is  101  out of  2000  days
   To be significant at the 95% CI, counts need to exceed 10
   Units in either mm/yr or nano-strain/yr
rdom e rate -20.2 +/- 4.7 snr 4.3
sawc u rate -60.1 +/- 11.3 snr 5.3
ca99 n rate 13.6 +/- 6.1 snr 2.2
ca99 e rate -16.3 +/- 5.1 snr 3.2
mwtp u rate -47.2 +/- 22.5 snr 2.1
krac n rate -15.6 +/- 3.9 snr 4.0
krac e rate -16.9 +/- 4.7 snr 3.6
krac u rate -57.7 +/- 13.3 snr 4.3
p639 e rate -21.8 +/- 4.3 snr 5.1
p639 u rate -35.8 +/- 12.6 snr 2.8
p638 e rate 8.6 +/- 4.1 snr 2.1
p638 u rate -33.3 +/- 11.4 snr 2.9
shrc e rate -12.3 +/- 4.2 snr 2.9
knol n rate 11.1 +/- 5.1 snr 2.2
p631 e rate -12.3 +/- 5.1 snr 2.4
tilc n rate 11.6 +/- 4.9 snr 2.4
tilc e rate -22.8 +/- 5.7 snr 4.0
tilc u rate -63.9 +/- 13.4 snr 4.8
ddmn u rate -46.6 +/- 21.3 snr 2.2
p646 e rate -28.0 +/- 3.4 snr 8.2
p646 u rate -29.1 +/- 11.9 snr 2.4
hotk e rate -17.4 +/- 5.0 snr 3.5
hotk u rate -45.4 +/- 10.2 snr 4.5
p630 n rate 21.5 +/- 7.9 snr 2.7
bald e rate -9.1 +/- 3.8 snr 2.4
bald u rate -23.5 +/- 10.7 snr 2.2
p642 e rate -16.8 +/- 6.6 snr 2.5
p647 n rate -9.2 +/- 3.9 snr 2.4
p647 e rate -17.5 +/- 3.0 snr 5.8
p641 n rate -10.6 +/- 4.0 snr 2.6
p641 e rate -6.4 +/- 3.2 snr 2.0
p640 n rate -9.2 +/- 3.3 snr 2.8
p643 n rate 18.7 +/- 3.6 snr 5.2
p643 e rate -23.0 +/- 4.3 snr 5.3
watc e rate -11.7 +/- 3.2 snr 3.7
p644 e rate -24.9 +/- 5.4 snr 4.6
p629 e rate 44.5 +/- 10.8 snr 4.1
p650 e rate -8.5 +/- 2.6 snr 3.3
p724 e rate -10.7 +/- 4.4 snr 2.4
p653 e rate -9.0 +/- 2.9 snr 3.1
 
The following exceed SNR 3.0 and at the 95% CI, the ensemble is significant
   The time span is  101  out of  2000  days
   To be significant at the 95% CI, counts need to exceed 1
   Units in either mm/yr or nano-strain/yr
rdom e rate -20.2 +/- 4.7 snr 4.3
sawc u rate -60.1 +/- 11.3 snr 5.3
ca99 e rate -16.3 +/- 5.1 snr 3.2
krac n rate -15.6 +/- 3.9 snr 4.0
krac e rate -16.9 +/- 4.7 snr 3.6
krac u rate -57.7 +/- 13.3 snr 4.3
p639 e rate -21.8 +/- 4.3 snr 5.1
tilc e rate -22.8 +/- 5.7 snr 4.0
tilc u rate -63.9 +/- 13.4 snr 4.8
p646 e rate -28.0 +/- 3.4 snr 8.2
hotk e rate -17.4 +/- 5.0 snr 3.5
hotk u rate -45.4 +/- 10.2 snr 4.5
p647 e rate -17.5 +/- 3.0 snr 5.8
p643 n rate 18.7 +/- 3.6 snr 5.2
p643 e rate -23.0 +/- 4.3 snr 5.3
watc e rate -11.7 +/- 3.2 snr 3.7
p644 e rate -24.9 +/- 5.4 snr 4.6
p629 e rate 44.5 +/- 10.8 snr 4.1
p650 e rate -8.5 +/- 2.6 snr 3.3
p653 e rate -9.0 +/- 2.9 snr 3.1
 
The following exceed SNR 4.0 and at the 95% CI, the ensemble is significant
   The time span is  101  out of  2000  days
   To be significant at the 95% CI, counts need to exceed 0
   Units in either mm/yr or nano-strain/yr
rdom e rate -20.2 +/- 4.7 snr 4.3
sawc u rate -60.1 +/- 11.3 snr 5.3
krac n rate -15.6 +/- 3.9 snr 4.0
krac u rate -57.7 +/- 13.3 snr 4.3
p639 e rate -21.8 +/- 4.3 snr 5.1
tilc e rate -22.8 +/- 5.7 snr 4.0
tilc u rate -63.9 +/- 13.4 snr 4.8
p646 e rate -28.0 +/- 3.4 snr 8.2
hotk u rate -45.4 +/- 10.2 snr 4.5
p647 e rate -17.5 +/- 3.0 snr 5.8
p643 n rate 18.7 +/- 3.6 snr 5.2
p643 e rate -23.0 +/- 4.3 snr 5.3
p644 e rate -24.9 +/- 5.4 snr 4.6
p629 e rate 44.5 +/- 10.8 snr 4.1
 
  Updated Tue Oct 26 22:55:04 UTC 2021

1 year compared with previous 10 years

The following exceed SNR 1.5 and at the 95% CI, the ensemble is significant
   The time span is  365  out of  3650  days
   To be significant at the 95% CI, counts need to exceed 18
   Units in either mm/yr or nano-strain/yr
rdom e rate -3.2 +/- 1.7 snr 1.9
rdom u rate -21.4 +/- 9.5 snr 2.3
mwtp n rate 8.3 +/- 2.6 snr 3.2
mwtp e rate 6.7 +/- 1.5 snr 4.5
mwtp u rate -18.3 +/- 5.9 snr 3.1
krac n rate -11.7 +/- 1.1 snr 10.6
krac e rate -6.3 +/- 1.8 snr 3.5
krac u rate -16.6 +/- 3.6 snr 4.6
p639 n rate 6.5 +/- 1.7 snr 3.8
p639 e rate -6.8 +/- 1.2 snr 5.7
p639 u rate -19.7 +/- 3.4 snr 5.8
p638 n rate -4.7 +/- 1.2 snr 3.9
p638 e rate 9.9 +/- 1.1 snr 9.0
p638 u rate -15.2 +/- 3.1 snr 4.9
shrc n rate 5.3 +/- 2.1 snr 2.5
shrc e rate 2.6 +/- 1.1 snr 2.4
p631 n rate 11.2 +/- 2.5 snr 4.5
p631 u rate -17.1 +/- 7.5 snr 2.3
tilc n rate 7.0 +/- 1.3 snr 5.4
tilc e rate -6.0 +/- 2.4 snr 2.5
tilc u rate -8.4 +/- 3.6 snr 2.3
ddmn n rate -8.8 +/- 1.7 snr 5.2
ddmn e rate 8.0 +/- 1.3 snr 6.2
p646 e rate -9.6 +/- 1.0 snr 9.6
p646 u rate -17.1 +/- 3.3 snr 5.2
hotk e rate -8.8 +/- 2.0 snr 4.4
hotk u rate -7.6 +/- 4.1 snr 1.9
p630 n rate 8.3 +/- 3.3 snr 2.5
p630 e rate 5.7 +/- 1.4 snr 4.1
p630 u rate -7.2 +/- 3.8 snr 1.9
p642 e rate -8.5 +/- 2.8 snr 3.0
mins e rate 7.1 +/- 4.7 snr 1.5
p647 n rate -4.7 +/- 1.1 snr 4.3
p647 e rate -3.3 +/- 0.9 snr 3.7
pmtn n rate -4.2 +/- 1.4 snr 3.0
pmtn e rate 5.5 +/- 1.4 snr 3.9
p641 n rate -6.1 +/- 1.1 snr 5.5
p640 n rate -4.7 +/- 0.9 snr 5.2
p640 e rate 2.7 +/- 0.9 snr 3.0
p643 n rate 3.0 +/- 1.3 snr 2.3
p643 e rate -4.9 +/- 1.6 snr 3.1
p643 u rate -4.3 +/- 2.7 snr 1.6
p633 n rate -3.4 +/- 1.3 snr 2.6
p633 e rate 4.4 +/- 1.1 snr 4.0
watc e rate -2.5 +/- 0.9 snr 2.8
p635 n rate -2.7 +/- 1.1 snr 2.5
p635 e rate 3.9 +/- 2.0 snr 1.9
p637 n rate -2.9 +/- 1.1 snr 2.6
p637 e rate 4.5 +/- 2.1 snr 2.1
p644 e rate -3.4 +/- 1.5 snr 2.3
p723 e rate -5.0 +/- 2.0 snr 2.5
p629 e rate 9.6 +/- 1.5 snr 6.4
p628 e rate 4.2 +/- 1.7 snr 2.5
p653 e rate 1.2 +/- 0.8 snr 1.5
 
The following exceed SNR 2.0 and at the 95% CI, the ensemble is significant
   The time span is  365  out of  3650  days
   To be significant at the 95% CI, counts need to exceed 8
   Units in either mm/yr or nano-strain/yr
rdom u rate -21.4 +/- 9.5 snr 2.3
mwtp n rate 8.3 +/- 2.6 snr 3.2
mwtp e rate 6.7 +/- 1.5 snr 4.5
mwtp u rate -18.3 +/- 5.9 snr 3.1
krac n rate -11.7 +/- 1.1 snr 10.6
krac e rate -6.3 +/- 1.8 snr 3.5
krac u rate -16.6 +/- 3.6 snr 4.6
p639 n rate 6.5 +/- 1.7 snr 3.8
p639 e rate -6.8 +/- 1.2 snr 5.7
p639 u rate -19.7 +/- 3.4 snr 5.8
p638 n rate -4.7 +/- 1.2 snr 3.9
p638 e rate 9.9 +/- 1.1 snr 9.0
p638 u rate -15.2 +/- 3.1 snr 4.9
shrc n rate 5.3 +/- 2.1 snr 2.5
shrc e rate 2.6 +/- 1.1 snr 2.4
p631 n rate 11.2 +/- 2.5 snr 4.5
p631 u rate -17.1 +/- 7.5 snr 2.3
tilc n rate 7.0 +/- 1.3 snr 5.4
tilc e rate -6.0 +/- 2.4 snr 2.5
tilc u rate -8.4 +/- 3.6 snr 2.3
ddmn n rate -8.8 +/- 1.7 snr 5.2
ddmn e rate 8.0 +/- 1.3 snr 6.2
p646 e rate -9.6 +/- 1.0 snr 9.6
p646 u rate -17.1 +/- 3.3 snr 5.2
hotk e rate -8.8 +/- 2.0 snr 4.4
p630 n rate 8.3 +/- 3.3 snr 2.5
p630 e rate 5.7 +/- 1.4 snr 4.1
p642 e rate -8.5 +/- 2.8 snr 3.0
p647 n rate -4.7 +/- 1.1 snr 4.3
p647 e rate -3.3 +/- 0.9 snr 3.7
pmtn n rate -4.2 +/- 1.4 snr 3.0
pmtn e rate 5.5 +/- 1.4 snr 3.9
p641 n rate -6.1 +/- 1.1 snr 5.5
p640 n rate -4.7 +/- 0.9 snr 5.2
p640 e rate 2.7 +/- 0.9 snr 3.0
p643 n rate 3.0 +/- 1.3 snr 2.3
p643 e rate -4.9 +/- 1.6 snr 3.1
p633 n rate -3.4 +/- 1.3 snr 2.6
p633 e rate 4.4 +/- 1.1 snr 4.0
watc e rate -2.5 +/- 0.9 snr 2.8
p635 n rate -2.7 +/- 1.1 snr 2.5
p637 n rate -2.9 +/- 1.1 snr 2.6
p637 e rate 4.5 +/- 2.1 snr 2.1
p644 e rate -3.4 +/- 1.5 snr 2.3
p723 e rate -5.0 +/- 2.0 snr 2.5
p629 e rate 9.6 +/- 1.5 snr 6.4
p628 e rate 4.2 +/- 1.7 snr 2.5
 
The following exceed SNR 3.0 and at the 95% CI, the ensemble is significant
   The time span is  365  out of  3650  days
   To be significant at the 95% CI, counts need to exceed 1
   Units in either mm/yr or nano-strain/yr
mwtp n rate 8.3 +/- 2.6 snr 3.2
mwtp e rate 6.7 +/- 1.5 snr 4.5
mwtp u rate -18.3 +/- 5.9 snr 3.1
krac n rate -11.7 +/- 1.1 snr 10.6
krac e rate -6.3 +/- 1.8 snr 3.5
krac u rate -16.6 +/- 3.6 snr 4.6
p639 n rate 6.5 +/- 1.7 snr 3.8
p639 e rate -6.8 +/- 1.2 snr 5.7
p639 u rate -19.7 +/- 3.4 snr 5.8
p638 n rate -4.7 +/- 1.2 snr 3.9
p638 e rate 9.9 +/- 1.1 snr 9.0
p638 u rate -15.2 +/- 3.1 snr 4.9
p631 n rate 11.2 +/- 2.5 snr 4.5
tilc n rate 7.0 +/- 1.3 snr 5.4
ddmn n rate -8.8 +/- 1.7 snr 5.2
ddmn e rate 8.0 +/- 1.3 snr 6.2
p646 e rate -9.6 +/- 1.0 snr 9.6
p646 u rate -17.1 +/- 3.3 snr 5.2
hotk e rate -8.8 +/- 2.0 snr 4.4
p630 e rate 5.7 +/- 1.4 snr 4.1
p642 e rate -8.5 +/- 2.8 snr 3.0
p647 n rate -4.7 +/- 1.1 snr 4.3
p647 e rate -3.3 +/- 0.9 snr 3.7
pmtn n rate -4.2 +/- 1.4 snr 3.0
pmtn e rate 5.5 +/- 1.4 snr 3.9
p641 n rate -6.1 +/- 1.1 snr 5.5
p640 n rate -4.7 +/- 0.9 snr 5.2
p640 e rate 2.7 +/- 0.9 snr 3.0
p643 e rate -4.9 +/- 1.6 snr 3.1
p633 e rate 4.4 +/- 1.1 snr 4.0
p629 e rate 9.6 +/- 1.5 snr 6.4
 
The following exceed SNR 4.0 and at the 95% CI, the ensemble is significant
   The time span is  365  out of  3650  days
   To be significant at the 95% CI, counts need to exceed 0
   Units in either mm/yr or nano-strain/yr
mwtp e rate 6.7 +/- 1.5 snr 4.5
krac n rate -11.7 +/- 1.1 snr 10.6
krac u rate -16.6 +/- 3.6 snr 4.6
p639 e rate -6.8 +/- 1.2 snr 5.7
p639 u rate -19.7 +/- 3.4 snr 5.8
p638 e rate 9.9 +/- 1.1 snr 9.0
p638 u rate -15.2 +/- 3.1 snr 4.9
p631 n rate 11.2 +/- 2.5 snr 4.5
tilc n rate 7.0 +/- 1.3 snr 5.4
ddmn n rate -8.8 +/- 1.7 snr 5.2
ddmn e rate 8.0 +/- 1.3 snr 6.2
p646 e rate -9.6 +/- 1.0 snr 9.6
p646 u rate -17.1 +/- 3.3 snr 5.2
hotk e rate -8.8 +/- 2.0 snr 4.4
p630 e rate 5.7 +/- 1.4 snr 4.1
p647 n rate -4.7 +/- 1.1 snr 4.3
p641 n rate -6.1 +/- 1.1 snr 5.5
p640 n rate -4.7 +/- 0.9 snr 5.2
p633 e rate 4.4 +/- 1.1 snr 4.0
p629 e rate 9.6 +/- 1.5 snr 6.4
 
  Updated Thu Oct 7 01:34:49 UTC 2021

11 years compared with previous 19 years

The following exceed SNR 1.5 and at the 95% CI, the ensemble is significant
   The time span is  3300  out of  7000  days
   To be significant at the 95% CI, counts need to exceed 18
   Units in either mm/yr or nano-strain/yr
rdom n rate 0.5 +/- 0.3 snr 1.7
rdom e rate 3.6 +/- 0.6 snr 6.0
rdom u rate 8.7 +/- 3.9 snr 2.2
mwtp n rate -4.6 +/- 0.5 snr 9.2
mwtp u rate 6.7 +/- 1.2 snr 5.6
krac n rate 4.4 +/- 0.3 snr 14.7
krac e rate 4.0 +/- 0.7 snr 5.7
krac u rate 9.7 +/- 0.9 snr 10.8
p639 n rate -0.8 +/- 0.5 snr 1.6
p639 e rate 3.9 +/- 0.4 snr 9.8
p639 u rate 4.9 +/- 1.1 snr 4.5
p638 n rate 3.2 +/- 0.4 snr 8.0
p638 e rate 1.2 +/- 0.4 snr 3.0
p638 u rate 3.8 +/- 1.1 snr 3.5
shrc n rate -2.9 +/- 0.6 snr 4.8
p631 n rate -1.7 +/- 0.6 snr 2.8
p631 e rate 1.2 +/- 0.8 snr 1.5
p631 u rate 3.1 +/- 1.9 snr 1.6
tilc n rate -5.1 +/- 0.3 snr 17.0
tilc e rate 2.4 +/- 1.0 snr 2.4
tilc u rate 4.3 +/- 0.9 snr 4.8
ddmn n rate 3.3 +/- 0.6 snr 5.5
ddmn e rate -1.1 +/- 0.3 snr 3.7
ddmn u rate 4.8 +/- 0.9 snr 5.3
p646 e rate 4.7 +/- 0.3 snr 15.7
p646 u rate 3.4 +/- 1.0 snr 3.4
hotk n rate -2.2 +/- 0.3 snr 7.3
hotk e rate 5.6 +/- 0.8 snr 7.0
hotk u rate 5.5 +/- 1.7 snr 3.2
p630 e rate -1.2 +/- 0.4 snr 3.0
p630 u rate 2.2 +/- 1.1 snr 2.0
p642 e rate 2.8 +/- 1.3 snr 2.2
mins n rate -1.8 +/- 0.4 snr 4.5
p647 n rate 1.2 +/- 0.4 snr 3.0
p647 e rate 3.0 +/- 0.4 snr 7.5
pmtn e rate 0.7 +/- 0.3 snr 2.3
p641 n rate 1.5 +/- 0.4 snr 3.8
p641 e rate 1.7 +/- 0.4 snr 4.2
p640 n rate 1.2 +/- 0.3 snr 4.0
p640 e rate 0.5 +/- 0.3 snr 1.7
p643 e rate 1.6 +/- 0.7 snr 2.3
p633 e rate 0.8 +/- 0.4 snr 2.0
watc e rate 2.1 +/- 0.3 snr 7.0
p635 e rate 1.5 +/- 0.5 snr 3.0
p637 n rate -0.7 +/- 0.4 snr 1.7
p637 e rate 2.2 +/- 0.6 snr 3.7
p644 e rate 1.2 +/- 0.4 snr 3.0
p645 e rate 0.9 +/- 0.4 snr 2.2
p629 e rate 0.9 +/- 0.2 snr 4.5
dech u rate 1.4 +/- 0.8 snr 1.7
p628 n rate -1.2 +/- 0.7 snr 1.7
p650 e rate 1.5 +/- 0.3 snr 5.0
p653 e rate 1.0 +/- 0.3 snr 3.3
 
The following exceed SNR 2.0 and at the 95% CI, the ensemble is significant
   The time span is  3300  out of  7000  days
   To be significant at the 95% CI, counts need to exceed 8
   Units in either mm/yr or nano-strain/yr
rdom e rate 3.6 +/- 0.6 snr 6.0
rdom u rate 8.7 +/- 3.9 snr 2.2
mwtp n rate -4.6 +/- 0.5 snr 9.2
mwtp u rate 6.7 +/- 1.2 snr 5.6
krac n rate 4.4 +/- 0.3 snr 14.7
krac e rate 4.0 +/- 0.7 snr 5.7
krac u rate 9.7 +/- 0.9 snr 10.8
p639 e rate 3.9 +/- 0.4 snr 9.8
p639 u rate 4.9 +/- 1.1 snr 4.5
p638 n rate 3.2 +/- 0.4 snr 8.0
p638 e rate 1.2 +/- 0.4 snr 3.0
p638 u rate 3.8 +/- 1.1 snr 3.5
shrc n rate -2.9 +/- 0.6 snr 4.8
p631 n rate -1.7 +/- 0.6 snr 2.8
tilc n rate -5.1 +/- 0.3 snr 17.0
tilc e rate 2.4 +/- 1.0 snr 2.4
tilc u rate 4.3 +/- 0.9 snr 4.8
ddmn n rate 3.3 +/- 0.6 snr 5.5
ddmn e rate -1.1 +/- 0.3 snr 3.7
ddmn u rate 4.8 +/- 0.9 snr 5.3
p646 e rate 4.7 +/- 0.3 snr 15.7
p646 u rate 3.4 +/- 1.0 snr 3.4
hotk n rate -2.2 +/- 0.3 snr 7.3
hotk e rate 5.6 +/- 0.8 snr 7.0
hotk u rate 5.5 +/- 1.7 snr 3.2
p630 e rate -1.2 +/- 0.4 snr 3.0
p630 u rate 2.2 +/- 1.1 snr 2.0
p642 e rate 2.8 +/- 1.3 snr 2.2
mins n rate -1.8 +/- 0.4 snr 4.5
p647 n rate 1.2 +/- 0.4 snr 3.0
p647 e rate 3.0 +/- 0.4 snr 7.5
pmtn e rate 0.7 +/- 0.3 snr 2.3
p641 n rate 1.5 +/- 0.4 snr 3.8
p641 e rate 1.7 +/- 0.4 snr 4.2
p640 n rate 1.2 +/- 0.3 snr 4.0
p643 e rate 1.6 +/- 0.7 snr 2.3
p633 e rate 0.8 +/- 0.4 snr 2.0
watc e rate 2.1 +/- 0.3 snr 7.0
p635 e rate 1.5 +/- 0.5 snr 3.0
p637 e rate 2.2 +/- 0.6 snr 3.7
p644 e rate 1.2 +/- 0.4 snr 3.0
p645 e rate 0.9 +/- 0.4 snr 2.2
p629 e rate 0.9 +/- 0.2 snr 4.5
p650 e rate 1.5 +/- 0.3 snr 5.0
p653 e rate 1.0 +/- 0.3 snr 3.3
 
The following exceed SNR 3.0 and at the 95% CI, the ensemble is significant
   The time span is  3300  out of  7000  days
   To be significant at the 95% CI, counts need to exceed 1
   Units in either mm/yr or nano-strain/yr
rdom e rate 3.6 +/- 0.6 snr 6.0
mwtp n rate -4.6 +/- 0.5 snr 9.2
mwtp u rate 6.7 +/- 1.2 snr 5.6
krac n rate 4.4 +/- 0.3 snr 14.7
krac e rate 4.0 +/- 0.7 snr 5.7
krac u rate 9.7 +/- 0.9 snr 10.8
p639 e rate 3.9 +/- 0.4 snr 9.8
p639 u rate 4.9 +/- 1.1 snr 4.5
p638 n rate 3.2 +/- 0.4 snr 8.0
p638 e rate 1.2 +/- 0.4 snr 3.0
p638 u rate 3.8 +/- 1.1 snr 3.5
shrc n rate -2.9 +/- 0.6 snr 4.8
tilc n rate -5.1 +/- 0.3 snr 17.0
tilc u rate 4.3 +/- 0.9 snr 4.8
ddmn n rate 3.3 +/- 0.6 snr 5.5
ddmn e rate -1.1 +/- 0.3 snr 3.7
ddmn u rate 4.8 +/- 0.9 snr 5.3
p646 e rate 4.7 +/- 0.3 snr 15.7
p646 u rate 3.4 +/- 1.0 snr 3.4
hotk n rate -2.2 +/- 0.3 snr 7.3
hotk e rate 5.6 +/- 0.8 snr 7.0
hotk u rate 5.5 +/- 1.7 snr 3.2
p630 e rate -1.2 +/- 0.4 snr 3.0
mins n rate -1.8 +/- 0.4 snr 4.5
p647 n rate 1.2 +/- 0.4 snr 3.0
p647 e rate 3.0 +/- 0.4 snr 7.5
p641 n rate 1.5 +/- 0.4 snr 3.8
p641 e rate 1.7 +/- 0.4 snr 4.2
p640 n rate 1.2 +/- 0.3 snr 4.0
watc e rate 2.1 +/- 0.3 snr 7.0
p635 e rate 1.5 +/- 0.5 snr 3.0
p637 e rate 2.2 +/- 0.6 snr 3.7
p644 e rate 1.2 +/- 0.4 snr 3.0
p629 e rate 0.9 +/- 0.2 snr 4.5
p650 e rate 1.5 +/- 0.3 snr 5.0
p653 e rate 1.0 +/- 0.3 snr 3.3
 
The following exceed SNR 4.0 and at the 95% CI, the ensemble is significant
   The time span is  3300  out of  7000  days
   To be significant at the 95% CI, counts need to exceed 0
   Units in either mm/yr or nano-strain/yr
rdom e rate 3.6 +/- 0.6 snr 6.0
mwtp n rate -4.6 +/- 0.5 snr 9.2
mwtp u rate 6.7 +/- 1.2 snr 5.6
krac n rate 4.4 +/- 0.3 snr 14.7
krac e rate 4.0 +/- 0.7 snr 5.7
krac u rate 9.7 +/- 0.9 snr 10.8
p639 e rate 3.9 +/- 0.4 snr 9.8
p639 u rate 4.9 +/- 1.1 snr 4.5
p638 n rate 3.2 +/- 0.4 snr 8.0
shrc n rate -2.9 +/- 0.6 snr 4.8
tilc n rate -5.1 +/- 0.3 snr 17.0
tilc u rate 4.3 +/- 0.9 snr 4.8
ddmn n rate 3.3 +/- 0.6 snr 5.5
ddmn u rate 4.8 +/- 0.9 snr 5.3
p646 e rate 4.7 +/- 0.3 snr 15.7
hotk n rate -2.2 +/- 0.3 snr 7.3
hotk e rate 5.6 +/- 0.8 snr 7.0
mins n rate -1.8 +/- 0.4 snr 4.5
p647 e rate 3.0 +/- 0.4 snr 7.5
p641 e rate 1.7 +/- 0.4 snr 4.2
p640 n rate 1.2 +/- 0.3 snr 4.0
watc e rate 2.1 +/- 0.3 snr 7.0
p629 e rate 0.9 +/- 0.2 snr 4.5
p650 e rate 1.5 +/- 0.3 snr 5.0
 
  Updated Thu Oct 7 01:34:56 UTC 2021

Caution should be exercised with the strain meter data as the data from these instruments as they are sensitive to rainfall. Although the strainmeter data are manually edited, the edits and adjustments are usually done "after the fact" such that telemetry problems and instrument resets can trigger an anomalous detection. This will only be apparent in the 10-day/100-day comparisons.

Spatial distribution of rate changes from Long-term monitoring data

The following maps show the locations of changes in the velocity of GPS sites, changes in creep rates, and, optionally, changes in strain rate from borehole strainmeters. Anything that is shown in Red represents a site where the signal (velocity, creep, or strain) is more than twice the standard error.

Time span
last 10 days compared with previous 100 days
last 15 days compared with previous 1.5 years
last 30 days compared with previous 2 years
last 100 days compared with previous 6 years
last 1 year compared with previous 10 years
last 9 year compared with previous 19 years

Long-term monitoring time-series data

Instrument Network	Stack Plots; updated every third day
	last 10 days compared with previous 100 days	last 15 days compared with previous 1.5 years	last 30 days compared with previous 2 years	last 100 days compared with previous 6 years	last 1 year compared with previous 10 years>	last 9 year compared with previous 19 years
GPS --Zone 1	10 days	15 days	30 days	100 days	1 year	9 years
GPS -- Zone 2	10 days	15 days	30 days	100 days	1 year	9 years
GPS -- Zone 3	10 days	15 days	30 days	100 days	1 year	9 years
GPS -- Zone 4	10 days	15 days	30 days	100 days	1 year	9 years

Short-term monitoring data

The present strain data, with the exception of the 10/100 day analysis, are not used not mixed or evaluated with the GPS. The short term monitoring is only presented as a reference.

Instrument Network	Stack Plots; updated daily
	last 10 days compared with previous 100 days	last 3 days compared with previous 30 days	last 1 day compared with previous 10 days
Dilatometer and Long Baseline Tilt	10 days	3 days	1 day

Updated, 20, March 2017

langbein at usgs dot gov