International Registry of Seismograph Stations
maintained jointly by
International Seismological Centre & World Data Center for Seismology, Denver
Station details: ================
Code: WRA
Latitude: -19.94260
Longitude: 134.33900
Elevation: 419.0
Depth:
Name: Warramunga Array Beam Reference Point
Region: Northern Territory,Australia
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 Warramunga Array Beam Reference Point Data at the ISC for 60 years between 1965 and 2025.