mmmmm

AD-A022 547

SPECIA'. DATA COLLECTION SYSTEM (SDCS) EVENT REPORT, NTS EVENT 'HUSKY PUP', 24 OCTOBER 1975

K. J. Hill, et al

Teledyne Geotech

Prepared for:

Air Force Technical Applications Center

28 January 1976

DISTRIBUTED BY:

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

097156 SDCS ER 75 67

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SPECIAL DATA COLLECTION^ SYSTEM EVENT REPORT NTS Event "HUSKY PUP". 24 October 1975

K.J. Hill, M.S. Dawkins, R.R. Baumstark, and M.D. Gillespie Alexandria Laboratories

Teledyne Geotech, 314 Montgomery Street, Alexandria, Virginia 22314

January 1976

APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED.

Sponsored By

The Defense Advanced Research Projects Agency

Nuclear Monitoring Research Office

1400 Wilson Boulevard, Arlington , Virginia 22209

ARPA Order No. 2897

Monitored By

VELA Seismological Center

312 Montgomery Street, Alexandria, Virginia 22314

t REPRODUCED BY

NATIONAL TECHNICAL INFORMATION SERVICE

U. S. DEPARTMENT OF COMMERCE SPRIK6FIELD, VA. 22161

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Disclaimer: Neither the Defense Advanced Research Projects Agency nor the Air Force Technical Applications Center will he responsible for Information contained herein which has been supplied by ovher organizations or contractors, and this document Is subject to later revision as may be necessary. The views and conclusions presented are those ot 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

9. PERFORMING ORGANIZATION NAME AND ADDRESS

Xeledyne Geotech 314 Montgomery Street Alexandria. Virginia 22314

SCCURITV CLASSIFICATION OF THIS PACE fWhmn Dmlm Enl»r»d)

REPORT DOCUM^TATION PAGE I. REPORT NUMBER

SDCS-ER-75-67

2. GOVT ACCESSION NO

4. TITLE fnd Subtlll»)

SPECIAL DATA COLLECTION SYSTEM (SDCS)

NTS Event "HUSKY PUP", 24 October 1975

7. AUTMOi )

Hill, K. J., Dawklns, M. S., Baumstark, R. R., and Glllesple, M. D. y

II. CONTROLLING OFFICE NAME AND ADDRESS

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

U MONITORING AGENCY NAME 4 ADORESS(7< dllltrmnl from Controlling Oltie»)

VELA Selsmologlcal Center 312 Montgomery Street Alexandria, Virginia 22314

READ INSTRUCTIONS BEFORE COMPLETING, KORM

J. RECIPIENT'S CATALOG NUMBER

S. TYPE OF REPORT * PERIOD COHERED

Technical •^

I

SDCS EVENT REPORT NO. 67

NTS Event "HUSKY PUP", 24 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: (* ' —'

ii n n P" Arrival Origin Time Lat. Long. m M

NORSAR 17:22:58.2 17:11:38 38 N 116 W 4.4 N/A Hagfors 17:23:06.4 17:11:20 36 N 118 W 5.1 N/A

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

17:11:27.0 37.IN 116.2W 4.7 N/A

All SDCS stations were operational during this period.

Short-period signals associated with this event were recorded at WH2YK, CPSO, HN-ME, RK-ON, LASA and NORSAR. FN-WV did not record a "P" Arrival for this event and was not included in this report. Horizontal SP channels at WH2YK, CPSO and HN-ME were rotated. Horizontal SP channels at RK-ON were not rotated because the SP transverse channel was inoperative.

The SDCS stations and LASA did not record LP signal arrivals and are not included in this report. ALPA and NORSAR long-period data were not recoverable.

Scaling factors on plots are millimicrons at 1 Hz (not corrected for instrument response) with the exception of LASA and NOPSAR short- period plots. LASA SP scaling factors are millimicrons per inch. Scaling factors are not reported for NORSAR short-period.

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HYPOCENTER DETERMINATION

INPDT FOF EVENT 2H OCT 75 17:11:22.0 37.000N 116.000« OFH,

PESIDDUS STA. APPTVÄl CMC BEST LD2 17 1U 20.2 *. 0 0.7 FK-CN 17 16 :i.8 -0.1 -1.0 CFSC 17 16 U9.1 -0.1 0.8 VH2YK 17 17 05.U 0.1 0.7 HN-HE 17 18 3H.H o.u -0.2 NÄC 17 22 58.2 -0.2 -1.0

EIST. ÄZ. REST BEST 12.1 35.7 21.1 U2.3 2a.7 8a.2 26.5 339.2 36.7 60.2 73.3 2a.1

67 HIPBIN TBAVE1 TIME TABLES

CFIGIN IAT. LCNG. DEPTH (KH) SDV IT STA 17:11:39.a 37.5aON 115.866» 78. CALC 0.2 3 6 17:11:27.0 37.082N 116.19aw C. PEST 0.9 2 6

CMC PEST 1.1 1.1

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0 0. 0 0 0 0. 0 0 0.0 0.0

0.0 0.0

CHI2 CCVEBAGI ELLIESE; 95 PEF CENT CONE..LEVEL, SDV= 1.7a MAJCF 66.2KH. HINGE a2.aKH. AZ= 2a APEA= 8818 SQ.KH. FEST

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DATA SUMMARY

INFUT FOE EVENT 2« OCT 75 17:11:22.0 37.000N 116.000« OFH.

AFEIVA1 HAGNITtlDE STÄA PHASE uai .ISST_ .us m. HE ws Ui... D1SI 1E2 B EP 17 1« 20.2 SAP 0.8 63. 5.59 12.1 PF-CN IP 17 16 11.8 SFZ 0.8 250. 5.21 21.1 CPSC EP 17 16 «9.1 SPZ 0.8 39. a.72 2a.7 WF2YK EP 17 17 05.U SFZ 0.7 13. a.26 26.5 HN-HE EP 17 18 3k.n SFZ 0.9 51. a.9a ,36.7 NAC EP 17 22 !8.2 AE 0.8 8. a.a7 73.3

TFIGIH 1AT. 1CNG. EEPTH fKH) NAG SDV STA 17:11:39.« 37.EU0N 11E .8660 78. CA1C u.ea o.«7 5 17:11:27.0 37.082N 116 .l?uw C. PEST U.72 0.38 e

Short-period magnitudes (mb) used in averaging are restricted to those recorded at distances between 20 and 110 degrees from the epicenter.

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NORSflR EVENT FILE 1975 OCT 24 EPX NO. 36260 RRR. 17.22.56.0 38.2N 115.6k' M.HMB 33KM

DIST - 72.1 flZI - 318.2 AMP - 3.5 PER -0.7

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