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



Station details: ================
Code: NUR
Latitude: 60.50900
Longitude: 24.64900
Elevation: 102.0
Depth:
Name: Nurmijarvi
Region: Finland
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 X-DIZ-GBR-MSF-OMA-RAT opened 1957 WWSS opened 19620731 NARS 199610-199902 Longitude corrected slightly 20010821 Data at the ISC for 60 years between 1958 and 2024. 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 ================================================================================================================================ NUR Nurmijarvi 60.50900 24.65140 102.0 25-08-1999 25-08-1999 Finland
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