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Station details:
================

Code: HOPS
Latitude:  38.99349
Longitude: -123.07234
Elevation:   299.1
Depth: 
Name: Hopland Field Station, Hopland
Region: California,U.S.A.
Status: 

        
Arrival picks statistics
Travel Time Analysis
On the top graph every dot represents the median residual for one month of data. The green line is the overall median; the orange line shows the standard deviation (smad) based on the median absolute deviation (mad), whilst the red line shows twice the standard deviation (2 * smad).
The bottom graph shows the number of residuals for each month. The red columns show the number of residuals whose median (for that month) is outside two standard deviations from the overall median (2 * smad).
Red dots indicate a possible clock error.
Travel time residuals
 

Station comments:
=================

opened 19941020
Coords corrected slightly 20000628

Data at the ISC for 28 years between 1995 and 2025.

Known station history:
======================

First and Last use refers to the time period in which the coordinates were used by the ISC.

Code   Station name/Region                                           Latitude  Longitude Elevation   Depth  First use   Last use
================================================================================================================================

HOPS   Hopland                                                       38.99400 -123.07200     299.0         25-08-1999 25-08-1999  
       California