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U.S. Department of Energy
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Near-source surface seismic measurements for the NPE, NPE Calibration, Hunter`s Trophy, and Mineral Quarry

Conference ·
OSTI ID:95997
;  [1];  [2]
  1. Field Command Defense Nuclear Agency, Kirtland AFB, NM (United States)
  2. Los Alamos National Laboratory, NM (United States); and others

An extensive seismic network was deployed on the surface of Rainier Mesa for both the Non-Proliferation Experiment (NPE) Calibration shot as well as the full scale NPE event. This network was very similar to previous deployments for the nuclear events MISTY ECHO, MINERAL QUARRY, and HUNTERS TROPHY. For the full scale NPE event three-component accelerometers and seismometers were fielded at 32 sites across the mesa. A slightly smaller network with 28 stations was in operation for the 300 pound NPE calibration event. The mesa top array included both accelerometers and seismometers. The accelerometers were used to obtain data from the main NPE event while the seismometers with their higher sensitivity were used to record the 300 pound cal shot and several hundred after events from the NPE. Large spatial variations in ground motion are evident in both the full mesa data set as well as a small (80 m on a side) aperture, 9-element triangular array. This paper summarizes the data and discusses wave propagation effects. A companion paper presents a comparative source analysis.

Research Organization:
Lawrence Livermore National Lab., CA (United States)
OSTI ID:
95997
Report Number(s):
CONF-9404100--; ON: DE95011413
Country of Publication:
United States
Language:
English