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

Code: GLMI
Latitude:  44.82450
Longitude:  -84.61739
Elevation:   387.0
Depth: 
Name: Grayling
Region: Michigan,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:
=================


Data at the ISC for 15 years between 2006 and 2020.

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

GLMI   Grayling                                                      44.82450  -84.61739     387.0         30-05-2006 05-10-2010  
       North America,U.S.A.