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



Station details: ================
Code: NEW
Latitude: 48.26419
Longitude: -117.12269
Elevation: 760.0
Depth:
Name: Newport
Region: Washington,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: ================= XC1-WWV 196606-19871130 reopened 19891006 USTN before 197610-19931112 USNN opened 19931113 Data at the ISC for 58 years between 1966 and 2024.
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