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

Code: JMI
Latitude:  70.92830
Longitude:   -8.73081
Elevation:    50.0
Depth: 
Name: Jan Mayen
Region: Jan Mayen Island,Norway
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.
 

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

Checked against station bulletin
XC1R1-DIZ-LKO(U)
Moved from 70
closed 1969
reopened and moved slightly 197201
BB opened 199511?

Data at the ISC for 55 years between 1964 and 2025.