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SDCS ER 75 32
SPECIAL DATA COLLECTION SYSTEM EVENT REPORT
Eastern Kazakh. 07 August 1975
J R Woolson. DO Solan, M S Dawkins. K J Hill, and RJ Markte
Alexandria Laboratories -
Teledyne tjeotech, 314 Montgonery Street. Alexandria. Virginia 22314
October 1975
APPROVED FOR PUBLIC RELEASE: DISTRIBUTION UNLIMITED.
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Sponsored By
The Defense Advanced Research Projects Agency
Nuclear Monitoring Research Office
1400 Wilson Boulevard. Arlington . Virginia 2220
ARPA Order No 2897
Monitored By
VELA Seismological tenter
312 Montgomery Street. Alexandria. Virginia 22314
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Disclaimer: Neither the Defense Advanced Research Projects Agency nrr thj Air Force Technical Applications Center will be responsible for information contained herein which has been supplied by other organizations or contractors, and this document is subject to later revision as may be necessary. The views and conclusions presented are thos" of the authors and should not be interpreted as necessarily representi 4 the official policies, either expressed or implied, of the Defense Advanced Research Projects Agency, the Air Force Technical Applications Center, or the US Government.
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Unclassified ^nTRlTY CLASSIFICATION OF TH.S PAGt '»*'n !>.,. h.,,,,,,,!)
REPORT DOCUMENTATION PAGE
___ ^ j.—»—-r7 I SPECIAL iJATA COLLECTION SYSTEM (SDCS) >^ S = s- ' ■ Eastern Kazakh, 7 August 1975«
RKAI) INSTRUCTIONS BEFORE COMPLETING FORM
2 GOVT ACCFSSION NO 3 RFCIPI EN T'l, C AT AL OG NUMBE R
s 7 AUTHORS«;
Woolson, J. R., Solari, D. D., Dawkins, M. S., Hill, K. J., and MarkJe, R. J.
i Pf IJF nrrmn i » p uwiaw] COVE RED
technical flLfJ, _PERFOfMlN'. OR^. MBPU*!1 NuMBf
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9 PERFORMING ORGANUATlOS NAME AND ADDRESS
Teledyne Geotech 314 Montgomery Street Alexandria, Vii Inia 22314
H CONTROLLING OFFI-. >4 AME AND ADDRESS
Defense Advam.. d Research Projects Agency Nuclear Monitoring Research Office 1400 Wilson Blvd.-Arlington. Virginia 22209
fl MONITORING AGENCY NAME » ADDRESSfl/ di/^renl Iram ConlrolllnS Ottire)
VELA Seismological Center 312 Montgomery Street Alexandria, Virginia 22314
IS SECURITY CLASS, (ol Ihtt taporlI
Unclassified
15« DECLASSIFICATION DOWNGRADING SCHEDULE
16 DISTRIBUTION STATEMENT (ot this Report)
APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED.
"lV -^TTRISl/TION STATEMENT (ot MM .(^Ir-^^r.d/r/Blork 20, // ittie.^t Udm Hepor,.
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SUCS Event Report No. 32
Eastern Kazakh, 7 August 1975
This event report contains seismic data from the Special Data Collection System (SDCS), and other sources»for the above event. Published epicenter information from seismic observacltons is:
Origin Time Latitude Longitude m M
NORSAR 03:56:47 49. IN Hagfors Array, Sweden 03:57:10 50 N
079.6E 5.0 N/A 076 E 5.H 3.7
Using SDCS stations, LASA and NORSAR, the epicenter location and magnitudes become
03:57:00 50. ON 078.0E 5.0 N/A
Short-period signals associated with this event were recorded at all SDCS stations, LASA and NORSAR.
Analysis of SDCS and LASA long-periorl data failed to produce recognizable signals associated with this event. The LP system at RK-0N was inoperative due to maintenance following instrument relocation in a new vault. At HN-ME, the vertical instrument was inoperative. The horizontal instruments exhibited principally non-seismic motion. A similar effect occurred on the north-south channel at CPSO. The east-west instrument at CPSO was inoperative.
horizontal long-period data at HN-ME and CPSO w^c not rotated to radial and transverse to this event location.
Long-period array data from ALPA and NORSAR was not recoverable.
Scaling factors on plots are millimicrons at 1 Hz (not corrected for instrument response) with the exception of NORSAR short-period plots. Scaling factors are not reported for NORSAR short-period.
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INPUT FOR PI c'NT 7 AUG 75 03:57: 00.0 U9.000N 78. 000E OKH.
PESIDUAIS EIST. AZ.
STA. ARPIVAL CALC PEST PEST PEST
NAC 0U 0U 18.7 -C.1 -0.1 38.0 312.8
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HN-HE 0U 09 10.1 o.u 0.5 79.8 336.7
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ORIGIN LAT. LCNG. DEPTH (KM) SDV IT STA 03:56:U8.0 U9.616N 7e.1UUE -67. CALC O.u 10 7 03:57:00.5 U9.972N 78.01CE 0. PEST O.U 3 7
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