Station details:
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Code: GUMA
Latitude:  43.06270
Longitude:   13.33520
Elevation:   574.0
Depth: 
Name: Gualdo di Macerata
Region: Italy
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:
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lon changed to 13.3352 on 2019/01/28, previously at 13.9352, believed to be a typo

Data at the ISC for 13 years between 2008 and 2020.