The 16 August 1997 Novaya Zemlya seismic event as viewed from GSN stations KEV and KBS

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Using current and historic seismic records from Global Seismic Network stations KEV and KBS, the authors find that S minus P arrival time comparisons between nuclear explosions and the 16 August 1997 seismic event (m{sub b} {approx} 3.6) from near Novaya Zemlya clearly indicate that (relative to KEV) the 16 August event occurred at least 80 km east of the Russian test site. Including S minus P arrival times from KBS constrains the location to beneath the Kara Sea and in good agreement with previously reported locations, over 100 km southeast of the test site. From an analysis of P{sub ... continued below

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29 p.

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Hartse, H.E. November 1, 1997.

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Description

Using current and historic seismic records from Global Seismic Network stations KEV and KBS, the authors find that S minus P arrival time comparisons between nuclear explosions and the 16 August 1997 seismic event (m{sub b} {approx} 3.6) from near Novaya Zemlya clearly indicate that (relative to KEV) the 16 August event occurred at least 80 km east of the Russian test site. Including S minus P arrival times from KBS constrains the location to beneath the Kara Sea and in good agreement with previously reported locations, over 100 km southeast of the test site. From an analysis of P{sub n}/S{sub n} waveform ratios at frequencies above 4 Hz, they find that the 16 August event falls within the population of regional earthquakes and is distinctly separated from Novaya Zemlya and other northern Eurasian nuclear explosion populations. Thus, given its location and waveform characteristics, they conclude the 16 August event was an earthquake. The 16 August event was not detected at teleseismic distances, and thus, this event provides a good example of the regional detection, location, and identification efforts that will be required to monitor the Comprehensive Test Ban Treaty below m{sub b} {approx} 4.

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29 p.

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OSTI as DE98004322

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  • Other Information: PBD: Nov 1997

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  • Other: DE98004322
  • Report No.: LA-UR--97-4824
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/650322 | External Link
  • Office of Scientific & Technical Information Report Number: 650322
  • Archival Resource Key: ark:/67531/metadc707595

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  • November 1, 1997

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 25, 2016, 1 p.m.

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Hartse, H.E. The 16 August 1997 Novaya Zemlya seismic event as viewed from GSN stations KEV and KBS, report, November 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc707595/: accessed May 27, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.