AD-A0P3 520

SPECIAL DATA COLLECTION SYSTEM (SDCS) EVENT REPORT. EASTERN KAZAKH, 29 OCTOBER 1975

Teledyne Geotech

Prepared for:

Air Force Technical Applications Center

5 February 1976

DISTRIBUTED BY:

KIÜ1 National Technical Information Service U. S. DEPARTMENT OF COMMERCE

BEST AVAILABLE COPY

, :ni ,n SDCS-ER 75 70

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in CO SPECIAL DATA COLLECTION SYSTEM EVENT REPORT (M Eastern Kazakh. 29 October 1975

K.J. Hill. MS Dawkint. R R Baumstark, and M D Gillispie

Alexandria Laboratories

Toltdynt Gtotech. 314 Montgomery Street. Alexandria. Virginia 22314

February 1976

APPROVED FOR PUBLIC RELEASE: DISTRIBUTION UNLIMITED

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The Defense Advanced Research Projects Agency

Nuclear Monitoring Research Office

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ARPA Order No 2897

Monitored By

VELA Seismological Center

312 Montgomery Street. Alexandria. Virginia 22314

REPRODUCED BY

NATIONAL TECHNICAL INFORMATION SERVICE

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Disclaimer: Neither the Defense Advanced Research rrolects Agency nor the Air Force Technical Applications Center will be r£spons;ble for Information contained herein which has been supplied by other organisations or contractors, and this document Is subject to later revision as may be necessary. The views and conclusions presented are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the Defense Advanced Research Projects Agency, the Air Force Technical Applications Center, or the US Government.

Unclassified

REPORT DOCUMENTATION PAGE i RFPOST NUMBt«

SDCS-EU-75-70

"U oovT ACceüiON NO

« TITLE f""< Su»ll"»l

SPECIAL DATA CÜLLECTIÜN SYSTEM (SDCS)

Eastern K.azi- I», 29 October 19 7'j

fttUt INSTKT. ri'lNS

1 RtClPlCNt't C*T*tOC NUMMtH

S TYPE OF RtPORT 4 PfHIOO COVfl.l B

Technical

7 *UTMO»»f«J

Hill, K. J., Dawkins, M. S., Baumstark, K. R.,

and Gilllsplf, M. D. ^^__

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1 PtRFORMiNO ORG*Ni:*TlON NAME *N0 ADDRESS

Teledyne üeotech 314 Montgoraery Street Alexandria, Virginia 22314

in PROGI'AM t . tMFN T PROjf '. fHi ARE A « WORK UNIT NUMBf Ri

T/4703

11 CONTROLLING OPPlCI NAME AND ADDRESS

Defense Advanced Research I'rujfcLs Agency Nuclear MuniLciriim Kes'.'.uch Ut t ice 14QOWiilflfl Hlvd -^li'M^^"- VirHni,! 222D& * ' .. — , ~r*nr-cc.i .4mm t mm ttnm i anttOIH Ti MONITORING Aot-^TT^A^E A ADDRESS,.."».»n. I>0m t .m.o.Ln, »H«..J

VC1.A Seismaloi;ical Centt-r 312 Montgomery Street Alexandria, Virginia 22314

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5 February 19 7b 11 NUMBER OF PAGEi

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I SUPPLEMENTARY NOTES

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20 ABSTRACT rC0n,7nu. on , iS ,i **"—'y •"* ***** *> *"* """""^

QQ FOR^ ^^2 EOITION OF 1 NOV »S IS OBSOLET! UllC IH S'i l f » «1d _____

'JAN " / sccWiT^ FTA-sir. felTioVi of TNII ?!« 7«^ "- ' ■'

SDCS EVENT REPORT NO. 7 0

Eastern Kazakh, 29 October 1975

This event report contains seismic data from the Upmcill D.t i Collection System (SDCS), and other sources for t lie tbove «vent Published epicenter information from seismic ohserv.tt ions i i

"P" Arrival Origin Time Lat . Lonq. ml) M

I

NORSAR 04:54:20.7 04:47:00 5 0 N 0 7 9 | f.. 1 N/A Hagfors 04:54:11.2 04:46:24 48 N 08 5 H 6.7 3.6

Using SDCS stations and NORSAR, the epicenter location and Mgnitud«! become

04:47:02.5 50.5N 078.7I- 5.7 3.5

All SDC: stations were operational during this period.

Short-period signals associated with this event w^re recorded at WH2YK, HN-ME, RK-ON, FN-WV and NORSAR. Horizontal SP channels .t HN-ME, WH2YK and FN-WV were rotated. Horizontal SP channels .it CPSO were not rotated because the SP north channel was Inoperative, Horizontal channels at RK-ON were not rotated because of data tpikre, LASA short-period data were not recoverable.

NORSAR recorded a long-period signal for this event. Sianal arrivals at the SDCS stations and ALPA could not be determined bacaut« of signal masking by event from Mexico. Horizontal LP channels a' ill SDCS stations were rotated. Validity of ALPA and NORSAR Long^parlod vertical beams is questionable and ho izontal beams were not Included because of program recovery problems. LASA long-period data wore not recoverable.

Scaling factors on plots are millimicrons at 1 ftl (not corrected for instrument response) with the exception jf t ic ":Or:V'K short-period plot. Scaling factors are not rep: r i ,^1 for NOR .vR Sh^rt-pariod.

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