International Registry of Seismograph Stations
maintained jointly by
International Seismological Centre & World Data Center for Seismology, Denver



Station details: ================
Code: CTB
Latitude: 7.20000
Longitude: 124.20000
Elevation: 50.0
Depth:
Name: Cotabato
Region: Mindanao,Philippines
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: ================= closed 1993? Moved to CTBH Data at the ISC for 11 years between 1991 and 2013. 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 ================================================================================================================================ CTB Cotabato 7.20000 124.20000 50.0 25-08-1999 25-08-1999 Mindanao CTB Cotabato 7.22100 124.24600 50.0 25-08-1999 03-03-2000 Mindanao
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