■■-■-"

AD-A021 396

SPFCIAL DATA COLLECTION SYSTEM (SDCS) EVENT REPORT, NOMYA ZEMLYA, 18 October !975

K. J. Hill, et al

Teledyne Geotech

Prepared for:

Air Force Technical Applications Center

13 January 1976

DISTRIBUFED BY:

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

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SDCS-ER 75 51

06922':

CO 05

5VJ SPECIAL DATA COllECTIOK SYSTEM EVENT REPORT Novaya Zemlya, 18 Octobar 1975

i

K.J. Hill, M.S. Oawkins, R R Saumstark, and M.O Gillispie Alexandria Laboratories

Teledyne Geotech, 314 Montgomery Street, Alexandria, Virginia 22314

January 1976

APPROVED FOR PUBLIC RELEASE, DISTRIBUTION UNLIMITED

Sponsored By ^ ^ n^'T^ The Defense Advanced Research Projects Agency \

Nuclear Monitoring Research Office \'\ A r^ \ \\V "V

1400 Wilson Boulevard, Arlington , Virginia 22209

ARPA Order No 2897

Monitored By

VELA Seismological Center

312 Montgomery Street, Alexandria. Virginia 22314

NATIONAL TECHNICAL INFORMATION SERVICE

iT

*■

* »

\

Disclaimer: Neither the Defense Advanced Research Projects Agency nor the 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 those of the authors and should not be interpreted as nece"arily 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,

ii

unclassified SECURITY C ASSlFICATION OF THIS PAGE (Whmn Omit Enlmttd)

REPORT DOCUMENTATION PAGE READ INSTRUCTIONS BEFORE COMPLETING FORM

I REPORT NUMBER

SDCS-ER-75-51 ^ 2 GOVT ACCE'.SION NO 3 RECIPIENT'S CATALOG NUMBER

4 TITLE r-ndSubm»», £ ^A>T ßM00*\

SPECI.\L DATA COLLECTION SYSTEM (SDCS)

Novaya Zemlya, 18 October 19 75

5 TYPE OF REPORT « PERIOD COVERED

Technical ^

6 PERFORMING ORG REPORT NUMBER

) AUTMORC«;

Hill, K. J., Dav;kin , M. S., Baumstark, R. R.,

and Gillespie, M. D.

8. CONTRACT OR GRANT NUMBERC«;

F08606-74-C-0013

9 PERFORMING ORGANIZATION NAME AND ADDRESS

Teledyne Geotech •" 314 Montgomery Street Alexandria, Virginia 22314

10 PROGRAM ELEMENT, PROJECT, TASK AREA « WORK UNIT NUMBERS

T/4703

'I CONTROLLING OFFICE NAME AND ADDRESS

Defense Advanced Research Projects Agency Nuclear Monitoring Research Office 1400 Wilson Blvd.- Arlington, Virginia 22209

12 REPORT DATE

13 January 1976 13 NlLUO^R OF PAGES 13 NMU»

Air* 14 MONITORING AGENCY NAME ft ADDRESSf// dlllettnl Irom Conlrolllnt Olhct)

VELA Seismological Center 312 Montgomery Street Alexandria, Virginia 22314

15. SECURITY CLASS, (ol Ihla report)

Unclassified

IS« DECL ASSIFICATION DOWNGRADING SCHEDULE

16 DISTRIBUTION STATEMENT CO/ this Report)

APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED.

17 DISTRIBUTION STATEMENT (ol the mbttrmcl entered In Bloch 10, II dlllerent Irom Report;

18 SUPPLEMtNTARY NOTES

19 KEY WORDS fContlnue on reverie tide II neceeemry end Identlly by block number)

20 ABSTRACT fContinue on reverme aide II necenemry end Identity by block number)

DD 1 JAN 73 1473 EDITION OF 1 NOV 65 IS OBSOLETE ,

I Unclassified SECURITY CLASSIFICATION OF THIS PAGE (When Dele F.ntereii)

iiiwiniwinni :.ta

SDCS EVENT REPORT NO. 51

Navaya Zemlya, 18 October 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 observations is:

"P" Arrival Origin Time Lat. Long. mb M s

NORSAR Hagfors

09:04 :24.1 09:04:20.2

08:59:55 09:00:20

71 N 72 N

054 E 047 E

6.6 N/A

N/A 5.1

Using SDCS stations, LASA and NORSAR, the epicenter location and magnitudes become

08:59:50.2 6 9. 6N 055.3E 6.6 4.9

All SDCS stations were operational during this period.

Short-period signals associated with this event were recorded at all SDCS stations, LASA and NORSAR. Horizontal SP channels at HN-ME, FN-WV, CPSO and WH2YK were rotated. Rotation of horizontal SP channels at RK-ON could not be accomplished because the SP transverse channel was inoperative. NORSAR data were obtained from their bulletin; the TAL transmission was not recoverable.

Long-period signals were recorded at all SDCS stations, ALPA, LASA and NORSAR. Horizontal LP channels at CPSO, FN-WV, HN-ME and RK-ON were rotated. At WH2YK horizontal LP channels were nor. rotated due to signal clipping on the LP radial charnel. Validity of the ALPA and NORSAR long-period vertical beams is uncertain. LASA long-period array data are recoverable in 6 minutes 40 seconds segment lengths; two segments are included in this repcrt. There were not enough data points to allow recovery of the 23-17 seconds period Rayleigh signal at LASA.

Scaling factors on plots are millimicrons at 1 Hz (not corrected for instrument response) with the exception of LASA. LASA SP scalina factors are millimicrons per inch.

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HYPOCENTER DETERMINATION

C8:59:55.0 71.002N 5U.000E OK«.

c-r. EESIDDALS DIST. A7 STA. APRIVA1 CA1C RP^T mmmX tl' *kC 09 M "-I -0.0 -0 2 20 ? J!8? «B2YF 09 08^2.6 -0 1 .jj «9 2 "f"? UN-HE 09 09 38.4 0.1 0 1 111 *A'i BK-CN 09 09 a0.3 -0 5 -0 8 ^7*7 lli'l lXC 09 10 19-3 0 6 0 6 U'l Ul'l FN-BV 09 10 45.5 0 6 0 8 ll o ?5f-! CFC 09 11 09.7 -0.7 -oM ^.'l ^ ?

67 HEPPIN TBAVE1 TI^E TABLES

CPIGIN LAT. LCNG. DEPTH (KH) SDV IT QT» 08:59:42.7 69.993N 54.840E -65. CÄ1C 0 5 5 7 06:59:50.2 69.630N 55.254E 0. PEST 5.6 4 7

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DATA SUMMARY

INPöT FOP EVENT 18 OCT 75 C8:59:E5.0 71.002N EU.OOOE OKH.

APPIVAL HATNITÖDE STAi___£H A SE JXjJ IMI—111 htl^ JU «S £!£_. PIS?

NAC EF 09 0*4 2<4.1 IE 0.6 3781. 6. 29 20.1 NAC LP 09 12 13.0 LPZ 17.0 101«. 5.«3 20.1 A1FÄ LP 09 26 22.0 LPZ 21.0 26. «.18 ««.5 MH2TK EP 09 OR «2.6 SPZ 1.2 9999. WR2yK LC 09 26 35.0 LPT 25.0 35. HH2YK LP 09 29 25.0 LFZ 23.0 ■3C «.36 «9.8 FN-m EP 09 09 38.« SPZ 0.8 9999. »»-HI LP 09 35 10.0 LPZ 18.0 81. «.79 57.3 PF-CN EP 09 OQ «0.3 SPZ 1.0 9999. PK-CN E 09 29 31.0 LFP 20.0 99. 1AC EP 09 10 19.3 SAB 0.8 1057. 6. 6« 63.2 PN-BV EP 09 10 «5.5 SPZ 0.8 9999. FN-HV LQ 09 33 12.0 LFT 30.0 31. FN-HV LP 09 Ul «8.0 LPZ 18.0 223. 5.30 67.2 CFC EP 09 11 09.7 SPZ 0.8 1776. 6. 85 71.2 CFC LQ 09 37 18.0 IFT 27.0 67. CFC LP Oc ULi 52.0 LFZ 17.0 157. 5.17 71.2

ORIGIN LAI. ICNG. DEPTH (FfH NAG SDV STA LPHAG LPSDV 08: 59:tt2. 7 69. 993N 5U. 8«0E 0. CALC 6.75 0. 15 2 « 87 0.5 08: 59:50. 2 69. 630N 55. 25«E 0. PEST 6.59 0. 28 3 «. 87 0.5

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