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



Station details: ================
Code: CBM
Latitude: 46.93250
Longitude: -68.12080
Elevation: 250.0
Depth:
Name: Caribou
Region: Maine,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

Amplitude analysis

On the top graph every dot represents the median value for that 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 (if present) shows twice the standard deviation (2 * smad). The bottom graph shows the number of observations for each month. Any red columns show those observations whose monthly median value is greater than twice the standard deviation (2 * smad) from the overall (running) median (shown in the top graph by red dots). Red dots indicate a possible calibration error.


Station comments: ================= Checked against station bulletin 1962-1968 197505-19941207 USTN 2 intervals 19770629-19921103 USNN 19921102-19941207 Data at the ISC for 27 years between 1963 and 1995.
International Seismological Centre
Pipers Lane, Thatcham, Berkshire
United Kingdom RG19 4NS
voice: +44 (0)1635 861022
fax: +44 (0)1635 872351

web site: http://www.isc.ac.uk/
e-mail: station_reg@isc.ac.uk