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

Code: GRS
Latitude:  39.50000
Longitude:   46.33330
Elevation:  1399.0
Depth: 
Name: Goris
Region: Armenia
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
Amplitude analysis
 On the top graph every dot represents the median value for that 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 (if present) shows twice the standard deviation (2 * smad).
The bottom graph shows the number of observations for each month. Any red columns show those observations whose monthly median value is greater than twice the standard deviation (2 * smad) from the overall (running) median (shown in the top graph by red dots).

Red dots indicate a possible calibration error.
 

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

co-ord updates via EMSC
Checked against station bulletin
XC2R4-RAT-RCH-RID-RIM-RKM-RTA-RWM
opened 1951
OBN 1951-19920915
NSSP opened 19920915

Data at the ISC for 68 years between 1950 and 2024.

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
================================================================================================================================

GRS    Goris                                                         39.52800   46.34000    1399.0         25-08-1999 15-05-2008  
       Armenia

GRS    Goris                                                         39.50000   46.33330    1550.0         15-05-2008 25-08-1999  
       Armeniya

GRS    Goris                                                         39.50000   46.33333    1399.0         25-08-1999 15-12-2004  
       Armeniya