Special Event Detection for an Unattended Seismic Observatory

reportActive / Technical Report | Accession Number: AD0778493 | Open PDF

Abstract:

A practical event detection system for monitoring remote three-axis seismometers is described. The self-contained system, through use of digital storage, records data from 30 seconds before an event is triggered until earth motion subsides. Intended for use in an unmanned seismic observatory, the device is capable of detecting near events as well as the multiple phases of teleseisms. Provision has been made for the on-site adjustment of critical detection parameters. A prototype has been tested on prerecorded data at the Vela Seismological Center in Alexandria, Virginia. A summary and interpretation of the test results is included.

Author(s):
Eterno, John S. ; Burns, David S. ; Freier, Lawrence J. ; Buck, Sheldon W.
Author Organization(s):
CHARLES STARK DRAPER LAB INC CAMBRIDGE MA
Descriptive Note:
Final technical rept. 15 Mar-14 Nov 1973
Pagination:
0072

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
R-765, AFOSR-TR-74-0585
Contract/Grant Number(s):
F44620-73-C-0057, ARPA ORDER-2441
Monitor Series:
TR-74-0585, AFOSR
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_5_Command and Control; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5.3_Planning; JCA_1.2.5_Lessons Learned; JCA_8_Building Partnerships; JCA_1.3_Human Capital Management; JCA_1_Force Support; JCA_1.3.2_Personnel Management; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_6.4.1_Secure Information Exchange; JCA_8.2.5_Strengthen Global Defense Posture; JCA_8.2_Shape
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*NUCLEAR EXPLOSIONS, *SEISMIC DETECTION, *SEISMOMETERS, *UNDERGROUND EXPLOSIONS, AUTOMATIC, DATA ACQUISITION, PERFORMANCE(ENGINEERING), SCHEMATIC DIAGRAMS, TEST METHODS
Field(s)/Group(s):
Seismology, Seismic Detection and Detectors
Keyword(s):
DESIGN
Report Date:
1974 Mar 01