Station details:
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Code: MHC
Latitude:  37.34164
Longitude: -121.64258
Elevation:  1250.4
Depth: 
Name: Mount Hamilton
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:
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Lick Observatory
Checked against station bulletin
MC1R4-WWVB,XC1R4-WWV
opened 18870424
BDSN opened 19860910
Coords corrected slightly 20000628
MNLO code MHCB

Data at the ISC for 109 years between 1906 and 2023.

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
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MHC    Mount Hamilton                                                37.34170 -121.64200    1282.0         25-08-1999 25-08-1999  
       California