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

Code: ERC
Latitude:  38.03764
Longitude:   12.58731
Elevation:   776.0
Depth: 
Name: Erice
Region: Sicily,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.
Travel time residuals
 

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

Formerly ER1
opened 197802
ROM opened 198106
Coords corrected 199909 and again slightly 20031007

Data at the ISC for 39 years between 1978 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
================================================================================================================================

ERC    Erice                                                         38.03600   12.58900     730.0         25-08-1999 25-08-1999  
       Sicily