SPECIAL DATA COLLECTION SYSTEM EVENT REPORT Eastern Kazakh SSR, (first event), 21 April K.J. Hill, M.S. Dawkins. and MD.

Size: px

Start display at page:

Download "SPECIAL DATA COLLECTION SYSTEM EVENT REPORT Eastern Kazakh SSR, (first event), 21 April K.J. Hill, M.S. Dawkins. and MD."

Eustace Benson
5 years ago
Views:

Virginia 314 June 1976 APPRVED FR PUBLIC RELEASE: DISTRIBUTIN UNLIMITED. /^N.

1 Sa? ER ? ) SPECIAL DATA CLLECTIN SYSTEM EVENT REPRT Eastern Kazakh SSR, (first event), 1 April 1976 K.J. Hill, M.S. Dawkins. and MD. Gillispie Alexandria Labratries Teledyne Getech, 314 Mntgmery Street, Alexandria, Virginia 314 June 1976 APPRVED FR PUBLIC RELEASE: DISTRIBUTIN UNLIMITED. /^N. Spnsred By The Defense Advanced Research Prjects Agency Nuclear Mnitring Research ffice 1400 Wilsn Bulevard, Arlingtn, Virginia 09 ARPA rder N. 897 Mnitred By VELA Seismlgical Center 31 Mntgmery Street. Alexandria, Virginia 314

2 Disclaimer: Netier the Defense Advanced Research Prjects Agency nr the Air Frce Technical Applicatins Center will be respnsible fr infrmatin cntained herein which has been supplied by ther rganizatins r cntractrs, and this dcument is subject t later revisin as may be necessary. The views and cnclusins presented are thse f the authrs and shuld nt be interpreted as necessarily representing the fficial plicies, either expressed r implied, f the Defense Advanced Research Prjects Agency, the Air Frce Technical Applicatins Center, r the US Gvernment.

UnfilMaÜAad SeCURITY CLAUIPICATIN f TMI» l»at fwif D-m Bnfnd) (/y ^ SDCS-ER-76-100 / ^ -^ 4. TITLK (mtd SubUH») REPRT DCUMENTATIN PAGE i- mbsnssbc.

$PERFRMING RGANI Teledyne Getech 314 Mntgmery Street Alexandria, Virginia 314 'ha'^\-^> READ INSTRUCTINS BEFRE CMPLETING FRM 1. RBCIPICNT'S CATALG NUMBER TYPE r REPRT A PERID CVERED 6.$ nrpnf» T n * TE Defense Advanced Research Prjects Agency V J JunMMft-tS> 7 6. Nuclear Mnitring Research ffice " ««s? f iwn 1400 Wilsn Blvd.-Arlingtn, Virginia 09 U.

nrpnf» T n * TE Defense Advanced Research Prjects Agency V J JunMMft-tS> 7 6. Nuclear Mnitring Research ffice " ««s? f iwn 1400 Wilsn Blvd.-Arlingtn, Virginia 09 U.

3 UnfilMaÜAad SeCURITY CLAUIPICATIN f TMI» l»at fwif D-m Bnfnd) (/y ^ SDCS-ER / ^ -^ 4. TITLK (mtd SubUH») REPRT DCUMENTATIN PAGE i- mbsnssbc. VT ACCESSIN N '% SPECIAL DATA CLLECTIN SYSTEM (SDCS), (. ^ / Technical yfc^ Eastern Kazakh SSR, <flr8t event), 1 April 1976^ 7. AUTMRf«; /Hill. ZATIN NAME AND ADDRESS t. PERFRMING RGANI Teledyne Getech 314 Mntgmery Street Alexandria, Virginia 314 'ha'^\-^> READ INSTRUCTINS BEFRE CMPLETING FRM 1. RBCIPICNT'S CATALG NUMBER TYPE r REPRT A PERID CVERED 6.. PERFRMING MI IIIIIII i 6Wi.7*EPRy*IUMBER iwfc *.» CNTRACT R GRANT NUMBERf«; Fc/86d6-74-C-ai3 y ' 10. PRGRAM ELEMENT, PRJECT. T»5F AREA A WRK UNIT NUMBERS /f7\ - r^r w. nrpnf» T n * TE Defense Advanced Research Prjects Agency V J JunMMft-tS> 7 6. Nuclear Mnitring Research ffice " ««s? f iwn 1400 Wilsn Blvd.-Arlingtn, Virginia 09 U. MNltfclM AGENCY NAM^ ADRESV" <«" ' "«"«"" Cnlr^lln^lllc») VELA Seismlgical Center sy^cjj Unclassified 31 Mntgmery Street C*^M ' fj?. Alexandria, Virginia 314 CNTRLLING FFICE NAME AND ADDRESS '7/XXT^T'^^^i^Tc / 10 IS. SECURITY CLASS, (l thli rtpri) IS«. DECLASSIFIC ATI N/DWN GRADING SCHEDULE U. 6ltTRItUTIN STATEMENT ^TWi Rtperl) APPRVED FR PUBLIC RELEASE; DISTRIBUTIN UNLIMITED 17. DISTRIBUTIN STATEMENT (öl MM.b.lf.e«MiwM In B/ek 30. // d/h.r«.«/rm R.pri; 1«. SUPPLEMENTARY NTES IS. KEY WRDS (Cnllnu* n ««II n»emi»mry and IdMll/y by We» niimb»r> 0. ABSTRACT CCennu«n MWWW»<«</ n.e».»«y «nd Idtnllly by blck numb.r) DJ),jJJ M 7, 1473 EITINF I NVSSlSiSLETE Un.lassified. / SECURITY CLASSIFICATIN F THIS PAGE (Wh.n... Em.r.J) i-

SDCS EVENT REPRT N. 100 Eastern Kazakh SSR, 1 April 1976 N This event reprt cntains seismic data frm the Special Data Cllectin Sysl m (SDCS), and ther surces fr the abve event.

5 N/A Using SDCS statins, LASA and NRSAR, the epicenter lcatin and magnitudes becme 04:58:00.1 49.8N 077.9E 4.

4 SDCS EVENT REPRT N. 100 Eastern Kazakh SSR, 1 April 1976 N This event reprt cntains seismic data frm the Special Data Cllectin Sysl m (SDCS), and ther surces fr the abve event.^ Published epicenter infrmatin frm seismic bservatins is: "P" Arrival rigin Time Lat. Lng. m^ M g NRSAR 05:05: :57:48 49 N 080 E 4.9 N/A Hagfrs 05:05:09. 04:58:19 51 N 075 E 5.5 N/A Using SDCS statins, LASA and NRSAR, the epicenter lcatin and magnitudes becme 04:58: N 077.9E 4.9 N/A The prgrams used fr LASA, NRSAR and ALPA data recvery are presently underging mdificatins. Infrmatin fr LASA shrt-perid is reprted frm their Teleseism Event Reprt; NRSAR shrt-perid data are btained frm their bulletin. The lng-perid array beam recvery fr these statins will be resumed upn cmpletin f these mdificatins. All SDCS statins were peratinal during this perid. Shrt-perid signals assciated with this event were recrded at WHYK, RK-N, FN-WV, CPS, LASA and NRSAR. All SP channels at HN-ME had plarity reversals; t crrect this, mathematical inversins f the data were perfrmed. Hrizntal SP channels at all SDCS statins were rtated. The SDCS statins did nt recrd lng-perid signals fr this event and were nt included in this reprt. Scaling factrs n plts are millimicrns at 1 Hz (nt crre fr instrument respnse). ^

l-h S u w HH Z H < J H s 3 Q Dd H M C Di [U l-h (X I H i x w t rh c > X r-t rsi eg rj J J W C > X K1 t us LD 00 rh 3- u v r^ ^D f t us < u L t r~r^ t X VD n

i i i u w I I H l-h < > w _) w w l <» tn CTl X> t * I 1 r- «L p* rj tn h 00 S S 3= 3= IS UJ as 3B <; t Tt un ^t L u l-h W DS S UJ W r rh rh m ^t rh LD Tj- L

$CT> L TT v 5 L \0 fnj L CTi CTl v rh L TJ- I L CTl H IN rj- rh 00 <tt L ifi t r-h i i H < R] U M (/) -J rt rh rt c H rh 01 > M > - (-.$

5 l-h S u w HH Z H < J H s 3 Q Dd H M C Di [U l-h (X I H i x w t rh c > X r-t rsi eg rj J J W C > X K1 t us LD 00 rh 3- u v r^ ^D f t us < u L t r~r^ t X VD n U3 K VD < u un r 1 r 1.-H r i r-i f^j r i r i U-) tx -J J M] -J r^ t t t t t X t 00 t 00 z I I H a. i i i u w I I H l-h < > w _) w w l <» tn CTl X> t * I 1 r- «L p* rj tn h 00 S S 3= 3= IS UJ as 3B <; t Tt un ^t L u l-h W DS S UJ W r rh rh m ^t rh LD Tj- L LT, t 00 r- L rt t t 00 CTl t r^ a^ r-h M rh t t rh ^ rh t CTi «* cr. CT> L TT v 5 L \0 fnj L CTi CTl v rh L TJ- I L CTl H IN rj- rh 00 <tt L ifi t r-h i i H < R] U M (/) -J rt rh rt c H rh 01 > M > - (-. H 0» C >H w» * <u > (/) H -H DC ed c u M X C </) rh > c c 0) ^ nj 'H C (U M H efl M 0) th rt J (H <u c ih C C M -H <-> rh C rh ^ re 4-1 3E c rt w (H C 3 -H U >-! T3 4-1 >H ^«S U K IH (U H rt 'i-i V c jr a S H u- S Q 8 X Z '^s ^: (* fe >- 0) (A tu tu S < t H < % < IS G a t 1 S C-J t u «J (X < US X < u S. J X S S

HYPCENTER DETERMINATIN INPUT FR EVENT 04:58:00.0 50.000N 1 APR 76 80.000E KH. STA.

RESIDUALS CALC REST 0.1 0.1-0.3-0. -0. -0.5 1.0 i. 0.1 0. -0.7-0.6 DIST. REST 38.0 66.7 79.5 83.8 89.8 93.7 AZ.

585E 115. CALC 04:58:00.1 a9.80n 77.911E 0. REST SDV IT 0, 6 7 0.6 3 STA 6 6 CALC 3. 1. 0 0 0. 0 0 0 0. 0 0 0. c 0.

6 HYPCENTER DETERMINATIN INPUT FR EVENT 04:58: N 1 APR E KH. STA. NA WHYK RK-N LA FN-W7 CPS ARRIVAL RESIDUALS CALC REST i DIST. REST AZ. REST HERRIN TRAVEL TINE TABLES RIGIN LAT. LNG. DEPTH (KM) 0U:58: N E 115. CALC 04:58:00.1 a9.80n E 0. REST SDV IT 0, STA 6 6 CALC c 0. 0 REST SDV=: CHI CVERAGE ELLIPSE; 95 PER CENT CNF..LEVEL, 0'" en MAJR 167.6KM. MINR 41.6KK. AZ= 180 AREA= 1911 SQ.KH. REST

DATA SUMMARY TNi'ÜT FB E?INT 1 APP 76 04:58:00.0 50.60011 80.0001! KH. ARRIVAL MAGNITUDE STAj.

7 RK-N EP 05 10 06.8 SPZ.U 8. U.P 79.5 LA EP 05 10 31.3 SAE 99.9 9999. FN-HV EP 05 10 59.7 SPZ 0.5 8. a.60 89.

7 DATA SUMMARY TNi'ÜT FB E?INT 1 APP 76 04:58: ! KH. ARRIVAL MAGNITUDE STAj. PHASE TIME INST PER A^T MB MS DIR DIST_ NA EP AB 0.6 Ul WHYK EP SPZ RK-N EP SPZ.U 8. U.P 79.5 LA EP SAE FN-HV EP SPZ a CPS EP SPZ RIGIN LAT. LNG. DEPTH (KM) MAG SDV STA 04:58: N E 115. CALC :53: P4N E 0, REST

8 CD er CM 10 p" in c75 >- t M ^ Q_ c C CM 1 Qu t C -H : C cn UJ

9 c. CD r*- nr Qu cr CM 00 CD in in I C : 00 C (M 3 1 in az ^ a. J Q_ 00 C LH

10 H UJ C.Q ijn c ST M CM Q- cn r- cn CD, C C CD LÜ

11 c UJ (J) c. 3 1 CD CD E 5 ; cn in C rr LU z:

12 r C CD l> GC a_ cr C^J UJ : - in en UJ en CD a- t C -H CD

SPECIAL DATA COLLECTION SYSTEM EVENT REPORT Fox Islands. Aleutian Islands. 12 April 1976

SPECIAL DATA COLLECTION SYSTEM EVENT REPORT Fox Islands. Aleutian Islands. 12 April 1976 > SDCS ER 76 99 «5 fh SPECIAL DATA LLECTIN SYSTEM EVENT REPRT Fx Islands. Aleutian Islands. 12 April 1976 K.J. Hill, M.S. Dawkins, and M.D. Gillispie Alexandria Labratries Teledyne Getech. 314 Mntgmery