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

Code: JSH
Latitude:  42.64300
Longitude:  140.04483
Elevation:    72.0
Depth: 
Name: Shimam
Region: Hiyama,Japan
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:
=================

JMA code SHIMAM

Data at the ISC for 29 years between 1995 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
================================================================================================================================

JSH    Shimam                                                        42.64300  140.04500      72.0         25-08-1999 25-08-1999  
       Hiyama

JSH    Shimam                                                        42.64300  140.04483      72.0         25-08-1999 03-03-2000  
       Hiyama

JSH    Shimam                                                        42.64300  140.04483      72.0         03-03-2000 03-03-2000  
       Hiyama