Aü-;,018 100

SPECIAL DATA COLLECTION SYSTEM EVENT REPORT KAMCHATKA, 6 APRIL 1975

J. R. Woolson, et al

Teledyne Geotech

Prepared for:

Advanced Research Projects Agency Air Force Technical Applications Center

8 September 1975

DISTRIBUTED BY:

KUn National Technical Information Service U. S. DEPARTMENT Öt COMMERCE

■MM^MHM - .". ' .-Ji*

?45110

©

/o SDCS-Efl 75 1

00 SPECIAL DATA COLLECTION SYSTLM EVENT REPORT

Kamchatka. 06 APRIL 1975

J.R.Woolson. D D Solan DJ Reinbold, and R J Markle

Alexandria Laboratories-

Teledyne Geotech, 314 Montgomery Street. Alexandria. Virginia 22314

September 1975

APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED

Sponsored By

The Defense Advanced heserrch Projects Agency

Nuclear Monitoring Research Office

1400 Wilson Boulevard. Arlington . Virginia 22209

ARPA Order No 2897

D D~CV «.«.tor.db, [^r ■ mnsm

VEIA Seismological Center DEC g |0||

312 Montgomery Street. Alexandria. Virginia 22314

uuEisEinnE taproducid by

NATIONAL TECHNICAL INFORMATION SERVICE

US Dapartnant of Comm.rc» 5pnng(i,lo, VA 2?I5|

zx

M.

****** --

Onelassified SKCUHITY TLASSIFtCATION Of THIS P Ar.Z (»h> n Dmlm fnirrrll

REPORT DOCUMENTATION PAGE HEPOBTNUMBER

SDCS-ER-75-1

i COVT «CCESSION NO

4 TITUE (and Submit)

SPECIAL DATA COLLECTION SYSTEM (SDCS)

Kamchatka, G6 April 1975

KIAIJ INSTRUCTIONS BEKOKK rOMPl.F.TINf". HTIKM

1 RECIPIENT^ C»T»LOO NUMBfR

S TYPE Of REPORT t PERIOD COVERED

Technical

7. AUTHCRf«;

Woolson, J. R., Solarl, D. D., Relnbold, b. J. . and Markle, R. J.

9 PERFORMING ORGANIZATION NAME AND «DDRESS

Alexandria Laboratories 314 Montgomery Street Alexandria. Virginia 22314

I I CONTROLLING OFFICE NAME AND ADDRESS

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

t PERFORMING ORG REPORT NuMBF.R

(. CONTRACT OR GRANT NUMBER^.;

F08606-74-Ü-0013 >-

10 PROGRAM ELEMENT PBOJFCT TASK AREA * «ORK UNIT NUMBERS

T/4703

IJ REPORT DATE

8 September 1975

7J—MONITORING AGENCY NAME A AODRESSfl/ dllltrtnl Irom Conlrolllnt ollicl)

VELA Selsmological Center 312 Montgomtiy Street Alexandria, 'ir^inia 22314

IS. NUMBER OF PAGE!

15 SECURITY CLASS 'ol Ihn fpttl,

Unclassified

IS« OECL ASSlFlCATION DOWNORAOlNO SCHEDULE

16 DISTRIBUTION ST ATEMENT fo/ IM« R«porr>

APPROVEP FOR PUBLIC RELEASE; DISTRIBUTION ItNLlMITED.

17 "DISTRIBUTION STATEMENT (ol Ih» «bafracf »nltfd In Block 30, II dlllmrtM Itom Rtporl)

IS SUPPLEMENTARY NOTES

19 KEY WORDS rConllnut on r«v«r<* tldt II n»c*itary and Idmnlllv he bloc* numbmr)

20 ABSTRACT fonrlnu» o-i rovrtit ■ id* II n#c*t««'>* «nd tttrntil by block nnmbtr)

DD //^'"s 1473 EoiTioNOF i NovtsisonsoLFTt Unclastfifiod

/ leCURlTV CL*Svr7c~TlON Of TMl<;n^.r »'..n l.miK I ,frr,l,

amm - ■ *• " - " ■ ■ -

SDCS Event Report No. 1

Kamchatka, 06 April 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:

Origin Time Latitude Longitude ra. H s

NORSAR LASA PDE Hagfors Array, Sweden

10:35:02 10:34:53 10:34:57 10:34:47

53 N 52.2N 52.2N 51 N

158 E 158.4E 160.0E 157 E

5.7 5.5 5.7 6.2 6.0 6.7

Using SDCS stations, LASA and NORSAR, the epicenter location becomes

SDCS & Arrays 10:34:57 52.ON 159.8E 5.5 5.9

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

are not reported for NORSAR short-period.

FN-WV was not operational for this eve.>t. signals were not recoverable.

LASA, NORSAR and ALFA long-period

i

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•« OJ c 0) OJ ■—i •H M S r-t a> « QO ■ ■ M o •rH 0) C )- !fl » • 01 o Q > tr, ■ H -H M 03 c ^ ^ o X

rti C I/) rH> C C o (U >s rt -rt

O M C (1> M •H nj W (L) rH TO J u (1> c U (/I •H a G ♦-1 <-H 4-» rH C -< * re ♦J o -a «j s C rt i/i rH C 3 -H <U V- Ti *-> •H ^ (U r-t O OJ >- OJ •H O o rt •--> o v c X 3 a, < s: f- u, 3: OQ T. X Z « z as o •e >-

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--HYPO

Input for Hvcnt

in:34:55.0 52.20nN

6 April 1975

I58.400E SSKM

Residuals I) ist .\z

St a. Arrival Surf Calc Rest Rest Rest

WII2YK 10 41 51.2 -0.5 -0.5 -0.6 35.7 49.1) LAO 10 44 41.4 1.1 1.2 1 .1 57.3 54.7 RK-ON 10 45 01.0 0.1 0.1 0.2 60.3 44.4 NAU 10 45 31.1 -0.0 0.0 -0.0 64.8 34 3.8 HN-ME 10 46 28.5 0.3 0.3 0.4 74.0 32.4 CPO 10 46 37.0 -1.0 -1.0 -1.1 75.8 4 9.8

67 Herrin Travel Time Tables

Origin Lat. Lonq. Depth (KM) SDV i r St a 10:34:41.2 51.84 2N 159.713^ 0. Surf 0.7 3 6 10:34:44.9 51.698N 159.634F. -35. Calc 0.7 6 6 10:34:56.8 S1.989N 1S9.793E 33. Rest 0.7 3 6

Surf 1 0

0 5 n o 0 0

o o 0 0 0 0

0 0

Calc Rest

1 0 0 5

0 0 0 0

o o 0 0 0 0

0 0

1 0 0 r

n n 0 0

0 0 o n 0 0

0 o

CIII2 Coverage Fillipsc; 95 Per Cent Conf..Level, Snv=1.01

Major Ma j o r

1M.8KM. 16S.8KM.

Mi nor Minor

4Ü.5KM. AZ* 40.4KM. AZ=

11 Area= 20949 Sq.KM. Surf 11 Area= 21065 Sq.KM. Rest

-s3-

MM

-HYPO-

Input for Event 10:34:53.0 52.200N

6 April 1975 15>i.400E 33KM

Sta. Phase Arrival

Time Inst Per A/T Magnitude M. Ms Dir Dist

WH2YK WH2YK WH2YK LAO RK-ON RK-ON NAO MN - ME HN-ME HN-ME CPO CPO

EP LQ LR EP EP LR EP EP LQ LR EP LR

10 4i 51. 10 53 07. 10 59 09, 10 44 41, 10 45 01, 11 13 35, 10 45 31, 10 46 28 11 13 24, 11 22 03, 10 46 37, 11 21 46

2 SPZH 0 LPRH 0 LPZL 14 AB 0 SPZH

LPZL AB SPZH LPRH LPZL SH LPZ

1.0 99.9 20.0 0.9 0.8

21.0 0 1

27

9 0 0

20.0 1.3

21.0

41, 0,

1648, 101, 83,

2302, 187, 164 205, 467, 133,

2258,

4 .96

5.50 5.46

5.87 5.65

5.61

5.89

6.26

5.66

6.35

35.7

35.7 57.3 60.3 60.3 64.8 74.0

74.0 75.8 75.8

Origin

10:34 :51.2 10:34:44.9 10:34:56.8

Lat.

51.842N 51.698N 51.989N

Long.

159.713E 159.634E 159.793E

Depth (KM) Mag

0. Surf 0. Calc

33. Rest

5.55 5.55 5.51

SDV

0.36 0.36 0.30

Sta LPMAG LPSDV LPSTA

6 b 6

6.04 6.04 6.04

0.3 0.3 0.3

-V--

— -■- ■

■«;

STATION UH2YK 06 flPU 75

I0>46>28.5

SPZH 905 I

SPZL 980 I:

**WHiAt*fUÜ Wff^^^*^mM' SPRH

68.5

5PTH 970

)!«■ i ■ r . . ■ i L 1 10 sec

-s-

mmmm m

STATION RK-ON 06 APR 75

SPZH 88.0

5PZL 114 VhiVy^^\W

SPPH 281

SPTH 505 >^/V^vvi^

, /^■^v^^NWWW1'!

, I mtl0m&»§Bt »»rvA/ytAAl q0n& v^«*1'* mm» »«► J^^Wf>^^■^VV>v^>«^^V^U)^*<>^^«Wl^^^^'>A^^J»*^<*A^-^M^^^ '

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5TPTI0N HN-riE 06 RPR 75

10=41=51.2

SPZH ' 91.0

SPZL 389

SPRH 35.9 '—'**tftAMw

M»1'- mm u'fci **> mjJ^mm pi* ■.■ — ^^^^9 ^v

10 tec

-7-

- - - —

STATION CP50 06 APR 75 1046 37,9

I

5PTH 363

10 *tc

•g-

iJMHiflBiHHMaiaHMMnnH - -JfaU^^w^^-. -. J

1 6 RPR 1975 2 10 3H 53 52.2N 158. HE 33C C 5.5 218 NEAR EAST COAST KflMCHflTKfl 3 10 W H1.6 LflO P 68.6 1.1 15.9 57.9 313.7

EPX 97805

flBN It

BP-B 0.6-2.0 HZ

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NORSflR EVENT FILE 1975 RPR 6 EPX NO. 16570 RRR. 10.45.33.0 52.6N 158. HE 5.7MB 33KM

DIST * Gt.O flZI ■ 21.3 AMP - 96.5 PEP = 0.9 UMETH 2

RB

SflB 3B

SRP 1C

SflB HC

SflB 13C

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