WES-NUREG-O238-005 rDRnfA)lE~ U. S. SEI91ICtE.l1\ORK i BI.liETIN i r.b. 7 a: SEISt"1ICIlY OF l1-IE f\K)R1}fEASTERNlflITED ~1 01, 1977 - June 30, STATES 1977 Carpiloo am Edited ~ E.F. arihJris , University of Camecticut R.O. Ahner, t-esta1 (t)servatDry T. Graham, t-esta1 (1)servatory CCX>rdinator Paul W. Pateroy, Unite:l States Novalter Geological Su:Ivey 1977 ~ ~sta1 (J)seJ:VatDry of ~ College Massaclmsetts Insti'blte of Techr¥:>l(XJY university of Camecticut IaDalt-Ik)1~ GeolCXJical (J)servatmy of Col\m't>ia University Pennsylvania State University ~laware GeolCXJical Survey ~ GeolCXJical SUrvey ~lear Iegulatory Camdssioo UnitOO States C?eol(XJical Smvey Natiooal Science FOlJrrlatial New York State Energy ard Re~s ~lopTent New York State Sci~ Se:rvi~ ~ AutbJrl ty 'PCKt¥:1IlTLE~ Partial or full St1RX>rtfran various agencies for the ~ratia1 of the l-brtheastem u. s. SeismicNe~rk '!he agencies providing is gratefully SUW:Jrt to ifeT~rs of mJSSN are as follOl1: 'n1e Nuclear Regulatory CaTrnission - Offi~ 'D1e tJni~ States 'nle National GeolCXJical Survey Science Foundation 'n1e New York State Energy 'l11e New York State Data iran ackroNloogoo, aIxl - Offi~ - Geophysics of Earthquake Stlrlies, Program, Resources ~velqxrent Aut}X)ri ty, aIrl Science Service the Seismic Ne~rk Catpany of New York ~ of Peactor Safety Research, provided q:Jeratai by the Consolidatai to NEUSSNam the receipt FliiSa'l of these data is gratefully'acknCJllledged In a&ti tioo to ~ aOOve q::erational sURX>rt, equiprent was also provided by the Office of Enviromental Geologyof the u. s. GeolCX3ical Survey to rraTrers of NEIJSSN. 'n'le ad~ lesearch provided a nunter of gecti~s Projects Agency of the ~tnent aIxi anplifiers of ~fense to all if.::aI~S of NEUSSN. 2 ABSTR'ACr 'n1is relX)rt is tbe seventh quarterly northeastern Urlited States am rovers ~ IJ'x;100e:1 are geographic maps of ~ ~ioo for ~ quarters. Also iJ1Cl\.¥3edare tables of the statim tiIles, arrplittrles, of seisnicity in t1:e April - June, 1977. seismic station epicenters arrival quarter, b1lletin lcx:atians, arrl the ClmJ1ati ve epicenters ~ for the seven locations and of am {::eriOOs for t1'e seventh quarterly epicenters. 3 Dfm:(D .cr!Q\) 'l1rls report nor~tern b1lletin united States for the pericxl April organizations Bostal is the seventh quarterly supplying data for this b1lletin College, laIta1t-~~ of seisnicity - J~, 1977. in tle 'l11e are JaEston(J)seJ:Vatory of GeolCX}ical (l)servatDry of Col\:i1Dia University. the Massachusetts rnsti'b.1te of TeclmolCXJY,tie Pennsylvania State University, ~ ~laware Mditional Jersey data for eart1~s \-/ere ~icentral States GeolCX}ical Survey, and the uni versi ty of Camecticut. suppl~ supplied Mines arrl Resources, tine data for events in Canada near the Oni ted Canada. stations qJeratlng not listOO in the previous bulletin. in ~ during perioo April - J~ , this J:e!X)rting pericrl 'nle five new statioos , (JJA-MA,NSC-cr. Table I is a list during ~ New by the Earth Physics Branch, Def)aL-WCTltof Fl1ergy, Five seisnic ~ NewYork aIx1 oort1~ by the Ca1so1idated Eklisal IOOian Point ne~rk. data arxl arrival \-.'ere m ~~tern 1977. ~ ~ ¥.Jere are LV W, TABN-W, state of the statioos q:Jerating fo:rmat of the infarmatioo include:} tables is as folla-1S : 1. 'Ihree or four letter Eartl'qUake station cxx1e, as ~izOO Infonra.tim Center of ~ (except as noted by an asterisk 2. 3. Statim latittxle, Statim la'lgi tude, 4. Statim elevatim, by ~ u. S. Ge:>logical Survey follC1l1ing the statim degrees-1ninutes-secxrlds, north. degrees-minutes-seoorrls, neters. National ~st. cxx3e). 4 5. Geographic nan'e of statim. 6. Net'lKJrk operator reSfX)nSible for statim, Figw:e 1 is a geographic mapof ~ ~stern (NEXJS5N) . In Naol York t1'ere are t11ree regioos of statioos tCX>dense to represent separately: Blue lob.mtain lake in ~ facility is too closely ~DSTFat Similarly, spaced to !::e clearly near Attica in the ~, ~ of ~ Indian Point nuclear array in mrthern Maine near Dickey represented. CX)Vere:l ~ this the perioo billetin, ~ detected am locatOO in the mrtheastem this total are sixteen Blue l-Duntam eartJ~s lake regia} of New York. nineteen eartb:juakes UnitOO States; inclooed in of nagni ttrle less than ~ In addi tim 0CCI.Irre1 in Canada having an epicenter within , ~ in t}e eart11qUakeS 100 Jdlateters of ~ Figure 2 is a geCXJraphlcnap of tl1e epiCS1ters for April oorder. near u. S. SEISIoncrl"i DJring 1977. of o::Nerage having clusters rX>rth, aIxl the stations in tl:Ie southeast. u. S. Seisnic Ne~rk Table II is a dtrooologica1 the fol1~ list of the epicenters fomat: 1. Date am ~aphic 2. ~ nane of tre event. saJrOO of ep~ter I.lX)- Iana1t-~ty University ~stal detenninatim GeolCXJical (i,seJ:VatDry of Camecticut Cbse.t:vatoxy Massaclmsetts Institute of TechrK:>lCXJY u.s - June, in Figure 2 wi.th 5 - Earth ~ Physics Branch, ~. of Energy, Mines arxl Resources Canada 3. Origin tine of the event, hours-minutes-seoorrls, 4. Event latibde, 5. Event longi tooe , degrees ~st. 6. ~t-nean-square 7. Event nagntidues. lvt>st nagni ttrles relation by Nuttli wave"; often degrees north. error of the least-squares devel~ although to te oonsistent 8. sea=-x3, the catp1~ are labellei Event depth, kilateters . For the depth, events that each of the locatioos calpUtoo for the "vertical wi thin the net\\Ork. s relation particular ~ solutim. using the u...~~t I.q the wave periOOs of the events in Table II nuch less than ~ Nuttli' ~. If the letter are magni tOOes a~ ~gni tudes catpUtBi using ~, the solution was restrai.ns:i to a R is apperrloo have epicenters deteJ:minsi by BOre than one source, is listai. FARnQJAKEMTA 'n1e calculations statim arrival are liste:l incl\x1Erl in Table II. tines am anplitOOes usm far epicenter am magnitl.x1e in Table III, 'n1e fomat as ~ll for ~ as the infonnatian a&li tional infomatioo already in Table III is as f0110.45: 1. Station ccxie. 2. Drergent (E) or inpJlsive (I), fol~ by phase type: P, ~, P*, m, s, SG, s*, SN. If the phase is iJIpllsi ve , direction of 6 first nDtia1 is also included when the systsn IX>lari ty is krXI-m: cx:npression 3. 4. Statim (C), dilatial arrival ~icentral tjJte, distance, CD) or Jxx1a1 (X). ~.nute-Secxl'd, kilateters. tl'1an one epicenter reIX>rter, ~ generally 5. For tb:>se events having DDre first epicenter listOO is usOOfor dis'tanoes. Peak-~peak grol1nd notim, record9:1 anplitOOe of ~ All wave). UlC. ~~ in millin\icra1S, vertica1-cu-r~.ent anplitudes of the ntaXinun signal (Rayleigh have been OOL-rec'-1.-ei for systan ~se. 6. Pericd, in seoorx1s, of tbe wave frcm which anplit\x1e was IYeasured. 7. Nuttli magnitOOe as <XJr1PUted fmn the anplitOOe, pericrl arx1 distance SUSP&..~ Mil) POORLY UCATm In ~tia1 events ~ de~ to the eartJ'KIUakeSliste:1 in Tables II am III, which oou1d oot be definitely qup..kes or not enough arrivals S(")11J.tial. FARl1Q:JAI(FS ~ detectei 'D1is class of events is listm format as Table III. identifiOO five as being earth- to allOli' an aCC2ptable (XXYplter in Table IV, which has the sane North Latitude, degrees In Q) Q) ~ 0\ Q) '0 ~ Q) '0 ~ +J 0\ ~ 0 ~ ~ In Q) ~ Figure 1. Seismic April stations - June operating 1977 during the period North 0 CX) V 0 0 t"V CD V Latitude, 0 0 It) V degrees 0 V V ~ V 0 (\J V 0 V 0 0 V 0 V CD .ww 0 0 toUl OJ OJ J.4 ~ OJ '0 , OJ '0 =' ~ -rt ~ ~ 0 ~ ~ Ul OJ ~ o C\J t- o V to- o W to- .r- CD 0 0 CD Figure 3. Earthquake October epicenters 1975 - June during 1977 the period 0 m f() 0 a> ~ TABLE I LIST OF OPERATING SEISMIC STATIONS BY STATE APRIL STA In LATITUDE - JUNE 1977 LONGITUDE ELEVATION OPERATOR DGMNSEC DGMNSEC METERS CANADA, STATIONS USED FOR LOCATIONS IN THIS BULLETIN MNQ MNT OTT 503148. 453009. 452338. N 684612. N 733723. N 754257. MANICOUAGAN,aUE. MONTREAL,aUE. OTTAWA,ONT ErB EPB EPB AVERY PT.,CT. BROOKFIELD CENTER,CT BRIDGEPORT,CT ELLSWORTH,CT HADDAM,CT NORTH STONINGTON,CT TALCOTT MTN.,CT STORRS,CT UCT UCT UCT UCT UCT WES UCT UCT NEWARK,DE fiGS ALLAGASH,HE CARIBOU,HE DICKEY,HE DICKEY,HE (KELLY HTN.) DICKEY,HE (BROWNSBROOK EAST HACHIAS,HE HILO,HE TURNER,HE tilES tilES tilES tilES tilES tilES tilES tilES 27 S2 lS 180 201 60 88 DUXBURY,HA FALL RIVER,HA GLOUCESTER,HA HARVARD,HA QUABBIN RESEVOIR,HA WESTON,HA WESTFORD,HA HIT WES HIT HIT WES WES HIT 472 24 180 280 659 220 BERLIN,NH DURHAH,NH HANOVER,NH OAKHILl,CONCORD,NH PITCHER HT.,NH WHITEFACE, NH WES HIT WES HIT HIT HIT W W 112 W 83 CONNECTICUT A,p' T Bc T B,P T EC T HD, H NS C TH T UC T 411857.5N 720350.0W 412936. N 732302. W 411319.5N 731432.0W 415004.7N 732440.8W 412908.8N 723123.6W 412850.7N 715105.7W 414841. N 724756. W 414954. N 721502. W 3 69 83 342 24 110 290 149 DELAWARE NED 394215'.2N 754229. 5W 46 MAINE AGM 470454. CBM 465557. D1A* D2A* D3A* EMM MIM TRM N 690124. N 680715. W 240 W 250 305 470330.8N 690556.2W 402 470749.3N 690908.8W 259 470515.2N 691007.4W 20 444421. N 672922. W 451437. N 690225. W 140 113 441534.9N 701518.3W MASSACHUSETTS DU X FL R GL 0 H RV QUA WE S WF M 420407. 414300.0N 423825. 423023. 422723.8N 422304.9N 423638. N 704604. W 710717.5W N 704338. W N 713330. W 722225.8W 711919.5W N 712926. W NEW HAMPSHIRE BNH DNH HNH ONH PNH WNH 443526. 430721. 434219. 43164~. 430539. 435206. N N N N N N 711523. W 705341.3W 721708. W 713020. W 720809. W 712359. W PAGE 2 OF 3 TABLE I,CONT. NEW JERSEY 410103. 6N LVNJ 404834.2N OGD 410515. N PRIN 402200.6N paN 410026.4N TABN 395151.0N GF'D 742739. OW 744505.4W 743545. W 744304.2W 750509.0W 743946.2W 360 201 363 110 229 30 GREENPOND,NJ lONG VAllEY,NJ OGDENSBURG,NJ PRINCTON,NJ PAHAQUARRY,NJ TABERNAClE,NJ LDO LDO LDO LDO LDO LDO 760710.8W 774749.8W 755540.8W 13 7 67 1 12 2 56 4 326 305 579 58 5 491 38 1 ADAMS,NY ALFRED,NY ALEXANDERBAY,NY LDO LDO LDO NEW YORK ADN 435000.0N ALF 421331.2N ALX 441921.0N AF'H 435028. 8N 742949. BGR 444943.8N BML. 435204. 2W 742227.0W 8N 742407. 2W CLY 435104.8N CTR 435227.0N DHN 424931.8N DNY 425010.8N DWN 424923.4N EGN 435134.7N HNY 424954.6N MAN 404651.0N MRH 425021.0N MSNY 445954.0N OCN 435305.4N PAL 410015.0N PNY 445003.0N PTN 443421.0N TBR 410830.0N UWL 435016.2N WND 422015.0N WNY 442327.6N 742656.4W 742736.0W 7811.34.8W 781007.8W 784601.8W 742854.6W 753053.4W 735825.8W 781424.0W 745143.2W 743145.6W 735433.0W 733318.0W 745858.2W 741320.0W 743236.0W 740909.0W 735134.2W WF'R 411516.8N 733508.4W BLM* CHR* DBM* DPL* GOB* GSC* IPS* OSB* SNP* SPS* SRM* STL* WGL* 411947. 411229. 411740. 411510. 411946. 411558. 411602. 412137. 411427. 411807. 411342. 411119. 412132. N N N N N N N N N N N N N 735718. 741316. 735830. 735439. 735519. 740014. 735654. 735526. 735816. 735326. 740050. 740013. 735358. W W W W W W W W W W W W W 549 500 AIRF'ORT HANGAR,BLUE MTN. ,NYLDO BANGOR,NY BLUE MOUNTAIN LAKE,NY CRYSTAL LAKE,NY CASTLE ROCK,NY DOYLE HILL,NY DERSAM,NY DOWNHOLE,NY EAGLFS NEST,NY HAMILTON,NY MANHATTAN,NY MERCHANTSHILL,NY MASSENA,NY OVER CASTLE ROCK,NY PALISADES,NY PLATTSBURG,NY POTSDAM,NY TABLEROCK,NY UTOWANALAKE,NY WINDHAH,NY WILMINGTON,NY WARDPOUND RIDGE,NY 134 183 27 67 150 119 BLUM,NY CALLS HOLLOWROAD,NY DUNDERBURGMTN.,NY DELLI PAOLI,NY GOBBELET,NY GIRL SCOUT CAMP,NY 212 30 168 165 125 152 OSBORN,NY STONEY POINT,NY ST. PETERS SCHOOL,NY SCHERMAN,NY STILES,NY WEGEL,NY LDO LDO LDO LDO LD;O LDO LDO LDO LDO LDO LDO LDO LDO LDO t_DO LDO LDO LDO LDO LDO LDO PAGE 3 OF 3 TABLE I,CONT. PENNSYLVANIA BVR ERI HLV PHI SCP 4042 4208 395930. 4007 404742. N 8020 W N N N N W W W W 352 7959 7622 7508 775154. BEAVER,PA ERIE,PA HILLERSVJLLE,PA ABINGTON,PA STATE COLLEGE,PA PSU PSU PSU PSU PSU LAFAYETTE,R.I. UCT ST. ALBANS,VT COLCHESTER,VT MIDDLEBURY,VT MONTPELIER,VT lDO lDO lDO lDO RHODE ISLAND LAF 413403.5N 713024.0W 40 VERMONT ALV 444730. N COV 443439.6N MDV 435957.0N MPVT 441642. N 730248. W 271 730845.0W 85 134 731052.2W 723624. W * STATION CODES NOT ALL CLEARED THROUGHNEIC OPERATORCODE CON - CONSOLIDATED EDISON, INDIAN POINT,NY DGS - DELAWAREGEOLOGICAL SURVEY EPB - EARTH PHYSICS BRANCH, DEPT. OF ENERGY, MINES, AND RESOURCES,CANADA LDO - LAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIV. HIT - MASSACHUSETTSINSTITUTE OF TECHNOl.OGY PSU - F'ENNSYLVANIA STATE UNIVERSITY UCT - UNIVERSITY OF CONNECTICUT WES - WESTON OBSERVATORY - BOSTON COl_LEGE TABLE II EPICENTER LIST NORTHEASTERNUNITED STATES AND ADJACENT REGIONS APRIL SOURCEH-TIHE(GHT) HR HN SEC - JUNE 1977 LATITUDE LONGITUDE RHS SEC DEG DEG MAGNITUDE DEPTH KM 06 AF'R *WES NORTHEASTOF BRISTOL,NEW BRUNSWICK 06 38 42.1 46.57N 67.53W 0.77 MBN=2.4 OR 06 APR *WES ATLANTIC OCEAN 20 3157.8 41.06N OR 09 APR *LDO BLUE MOUNTAIN LAKE,NEW YORK 11 49 43.86N 74.48W 02 MAY *WES 5T. PA5CAL,QUEBEC 22 4123.1 47.49N 70.43W 0.91 MBN=2.5 MBN'(l 69.94W 0.06 MBN=2.8 OR LAKE FAIRLEE,VERMONT 05 MAY 72.26W 08 39 31.8 43.86N *WES 0.38 MBN=2.1 OR 10 MAY *l_DO BLUE MOUNTAIN LAKE,NEW YORK 1124 43.86N 74.48W HBN<l ~2 MAY *LDO BLUE MOUNTAIN LAKE,NEW YORK 03 49 43.86N 74.48W MBN<l BLUE MOUNTAIN LAKE,NEW YORK 15 MAY 03 49 43.86N 74.48W *LDO MBN<l BLUE MOUNTA I N LAKE, NEW YOF~K 15 MAY 05 24 43.B6N 74.4BW *LDO HBN<l BLUE MOUNTAIN LAKE,NEW YORK 15 MAY 09 35 43.B6N 74.4BW *LDO MBN"~1 BLUE MOUNTAIN LAKE.NEW YORK 15 HAY 1125 43.86N 74.48W *LDO MBN<l BLUE MOUNTAIN LAKE,NEW YORK 20 MAY 00 04 43.86N 74.48W *LDO HBN<l 26 HAY *lDO BLUE MOUNTAIN LAKE,NEW YORK 00 26 43.86N 74.48W MBN"'~1 28 HAY *LDO NEAR THE NEW YORK-CANADABORDER 00 57 15.3 45.12N 74.61W 0.03 MBN=1.2 6 29 MAY *WES SOUTHEASTOF BAlE ST. PAUL,QUEBEC 12 49 33.9 47.47N 70.39W 0.68 MBN=2.4 OR PAGE 2 OF 2 TABLE II,CONT. 01 JUN *LDO BLUE MOUNTAIN LAKE,NEW YORK 05 33' 43.86N 74.48W HBN<1 04 JUN BLUE MOUNTAIN LAKE,NEW YORK 12 14 43.86N 74.48W *LDO MBN<l 05 JUN *LDO MBN<l BLUE MOUNTAIN LAKE,NEW YORK 04 09 43.86N 74.48W 06 JUN ST. LAWRENCE VALLEy,QUEBEC *WES 08 10 40.3 47.36N 70.16W 0.28 MBN=2.2 OR 10 JUN NEAR HIGH BRIDGE,NEW JERSEY *LDO 12 48 04.8 40.70N 74.89W 0.30 MBN=l-.l 6 15 JUN BLUE MOUNTAIN LAKE,NEW.YORK *LDO 08 44 43.86N 74.48W MBN<l 17 JUN NEAR THE NEW YORK-CANADABORDER 07 35 16.8 45.14N 74.22W 0.18 *LDO MBN=1.3 18 JUN *LDO BLUE MOUNTAIN LAKE.NEW YORK 12 18 43.86N 74.48W MBN<l 20 JUN *EPB *WES NEAR LA MALBAIE,QUEBEC(FELT) 05 05 55.(0)47.69N 70.14W 05 05 54.1 47.75N 70.27W 0.7 0.58 ML =3.2 MBN=3.9 OR 21 JUN *WES ST. LAWRENCEVALLEy,QUEBEC 13 4112.1 47.48N 70.12W 0.28 HBN=2.2 OR 22 JUN *LDO 00 09 23 JUN *WES ST. LAWRENCEVALLEY,GUEBEC 00 47 51.0 47.61N 69.83W 27 JUN *LDO BLUE MOUNTAIN LAKE,NEW YORK 22 32 43.86N 74.48W 1 BLUE MOUNTAIN LAKE,NEW YORK . 43.86N 74.4BW MBN<l 0.16 MBN=1.9 OR MBN~':: 1 * SOURCE DGS - DELAWARE GEOLOGICAL SURVEY EPB - EARTH PHYSICS BRANCH,DEPT. OF ENERGY, MINES, AND RESOURCES,CANADA LDO - LAMONT-DOHERTYGEOLOGICAL OBSERVATORYOF COLUMBIA UNIV. MIT - MASSACHUSETTSINSTITUTE OF TECHNOLOGY . F'SU UCT - WES - PENNSYLVANIA STATE UNIVERSITY UNIVERSITY OF CONNECTICUT WESTONOBSERVATORY- BOSTON COLLEGE TABLE III EARTHQUAKEDATA LIST NORTHEASTERNUNITED STATES AND ADJACENT REGIONS APRIL SOURCEH-TIME(GMT) HR MN SEC - JUNE 1977 LATITUDE LONGITlIDE DEG DEG RHS SEC MAGNITUDE DEPTH KM OR ATLANTIC OCEAN 06 APR 20 3157.8 41.06N *WES 20 32 24.1 FLR ES 20 32 37.1 APT ES 20 32 44.6 UCT ES 20 32 45.3 HDM ES 20 32 55.7 THT ES 20 32 58.2 BPT ES 20 33 01.7 BCT ES 20 33 04.4 ECT ES 70.43W 94KH 28HU 140KH 14HU 175KH 36HU 182KH 31HU 215KH 19HU 237KH 252KH 264KH 10HU BLUE MOUNTAIN LAKE,NEW YORK 09 APR 1149 43.86N 74.48W *LDO MBN=2.5 0.91 MBN=2.35 0.3SEC MBN=2.38 0.2SEC MBN=2.70 0.3SEC MBN=2.73 0.3SEC MDN=2.33 0.5SEC OR O.2SEC MBN=2.49 ~BN<l ST. PASCAL,QUEBEC 02 MAY MBN=2.8 0.06 22 4123.1 47.49N 69.94W *WES 22 4135.2 74KH D3A EP 41MU O.lSEC MI(N=2.95 22 4136.6 83KH AGM EP 22 4146.7 83t<H AGM ES O.3SEC MBN=2.74 44HU 22 4147.5 151KH CBM EP 22 42 05.3 151t<H CBM ES OR PAGE 2 OF. 4 TABLE III,CONT. 05 HAY LAKE FAIRLEE,VERHONT 08 HNH EPG HNH ESG WNHEP PNH EP PNH ES BNH EP BNH ES DNH EP DNH ES WFH EP WFH ES WES EPG WES ES UCT ES ECT ES HDH ES BCT ES HIH ESG *WES 39 31.8 43.86N 08 39 34.7 08 39 36.6 08 39 43.3 08 39 46.2 08 39 55.5 08 39 50.2 08 40 03.9 08 3954.5 08 40 10.4 08 39 56.7 08 40 13.5 08 40 01.3 08 40 20.8 OS 40 32.7 OS 40 37.7 PS 40 43.5 OS 40 47.7 OS 40 56.8 0.38 MBN=2.1 72.26W 17KH 17KH 69KH 86KH 86KH 114KH 114KH 138KH 138KH 152KH 152KH 9HU O.3SEC MBN=2.2 181KH 181KH 226KH 10IMU 0.3SEC MBN=2.25 248KH i 'MU 0.3SEC MBN=2.13 266KH 4IMU 0.2SEC MBN=2.09 2S2KH 5,MU 0.3SEC MBN=2.04 299KH 3;MU 0'.3SEC MBN=1.84 BLUE MOUNTAIN LAKE,NEW YORK 10 MAY 11 24 43.86N 74.48W *LDO MBN"~1 BLUE MOUNTAIN LAKE,NEW YORK 12 MAY 03 49 43.86N 74.48W *LDO MBN<l 15 HAY *l.DO BLUE 03 49 MOUNTAINLAKE,NEWYORK 43.86N 74.48W MBN<l BLUE MOUNTAIN LAKE,NEW YORK 15 MAY OS 24 43.86N 74.48W *LDO MBN<l BLUE MOUNTAIN LAKE,NEW YORK 15 HAY 09 35 43.86N 74.48W *LDO HBN<l BLUE MOUNTAIN LAKE,NEW YORK 1125 43.86N 74.48W MBN<l BLUE MOUNTAIN LAKE,NEW YORK 20 HAY 00 04 43.86N 74.48W *LDO MElN<l BLUE MOUNTAIN LAKE,NEW YORK 26 HAY 00 26 43.86N 74.48W *LDO MBN<1 15 HAY *LDO NEAR THE NEW YORK-CANADA BORDER 28 HAY 00 57 15.3 45.12N 74.61W 0.03 *lDO 00 57 25.7 68KM PTN EP 00 57 33.5 68KM PTN ES 00 57 29.0 90KM PNY EP 00 57 39.2 90KM PNY ES 00 57 36.9 142KM UWl EP 00 57 56.1 142KM UWl ES OR MBN=1.2 6 PAGE 3 OF 4 TABLE III,CONT. 29 HAY *WES SOUTHEAST OF BAlE 12 49 33.9 47.47N ST. PAUL,QUEBEC .70.39W 0.68 D3A EP D3A ES 12 49 50.~ 12 50 03.7 102KH 102KM AGH EP AGH ES CBH EPN CBH ESN 12 12 12 12 112KH 112KH 182KH 182KH 01 JUN *LDO 49 50 50 50 51.6 04.7 02.6 23.1 HBN=2.4 25MU 0.3SEC MBN=2.37 11HU 0.2SEC MBN=2.3S BLUE MOUNTAIN l_AKE, NEW YORK 05 33 43.86N MBN<l 74.48W 04 JUN BLUE MOUNTAINLAKE,NEWYORK *LDO 12 14 43.86N 74.48W MBN<l 05 JUN *LDO HBN<1 BLUE 04 09 06 JUN ST. *WES 08 10 D3A EP 08 D3A ES 08 MOUNTAIN LAKE,NEW YORK 43.86N 74.48W LAWRENCEVALLEy,QUEBEC 40.3 47.36N 70.16W 10 53.7 81KH 11 03.7 81KH 0.28 MBN=2.2 08 10 55.0 08 11 06.1 92KH 92KH 8HU O.1SEC HBN=2.28 CBH EPN 08 11 06.2 CBH ESN 08 1125.1 162KH 162KH 5HU O.2SEC HBN=2.12 AGH EP AGH ES NEAR HIGH BRIDGE,NEW JERSEY 10 JUN 12 48 04.8 40.70N 74.89W *LDO 12 48 07.2 18KH LVNJEP 12 48 10.3 18KH LVNJES 12 48 10.9 39KH F'GN EP 12 48 16.1 39KH PGN ES 12 48 12.0 40KH PRINEP 12 48 16.2 40KH PRINES 12 48 12.8 50KH GPD EP 12 48 19.5 50KH GPD ES 15 JUN *LDO 17 JUN *LDO PNY PNY PTN PTN UWL UWL 0.30 BLUE MOUNTAIN LAKE,NEW YORK 08 44 43.86N 74.48W NEAR 07 35 07 EP 07 ES 07 EP 07 ES 07 EP 07 ES 18 JUN *LDO OR MBN=l.l OR 6 HBN<l THE NEWYORK-CANADABORDER 16.8 45.14N 74.J2W 35 26.6 65KH 35 33.7 65KH 35 30.1 87KH 35 40.5 87KH 35 41.2 147KH 35 56.1 147KH BLUE MOUNTAIN LAKE,NEW YORK 12 18 43.86N 74.48W 0.18 MBN=1.3 HBN<l 1 PAGE 4 OF 4 TABLE III,CONT. 20 JUN *EPB *WES NEAR LA HALBAIE,QUEBECCFELT) 0.7 05 05 55.CO)47.69N 70.14W 0.58 05 05 54.1 47.75N 70.27W D3A EP AGH EP 05 06 11.7 05 06 13.2 111KH 120KH HIH EPN 05 06 37.4 MNQ EPN 05 06 40.5 294KH 32BKH MNT EPG 05 06 53.0 MNT ESG 05 07 36.0 OTT ESG 05 OB 14.0 21 JUN *WES 497HU HL =3.2 HBN=3.9 O.4SEC MBN=3.93 35BKH 35BKM 493KM ST. LAWRENCEVALLEy,QUEBEC 13 41 12.1. 47.48N 70.12W 0.28 MBN=2.2 D3A EP D3A ES 13 41 26.0 13 41 36.3 84KH 84KH AGH EP AGH ES 13 4127.7 13 41 38.9 94KH 94KH CBH EP CBH ES 13 41 38.2 13 4156.4 163KH 163KH 6MU 262KH 3HU O.2SEC MBN=1.96 HIH ESN 13 42 18.0 22 JUN *LDO 13MU O.lSEC O.2SEC MBN=2.07 BLUE MOUNTAIN LAKE,NEW YORK 00 09 43.86N 74.48W MBN<l ST. LAWRENCEVALLEy,QUEBEC MBN=1.9 0.16 00 47 51.0 47.61N 69.83W 00 48 03.8 77KH EP 00 48 13.0 77KH ES 00 48 04.8 85KH 6HU O.lSEC MBN=2.12 EP 00 48 15.0 85KH ES 0048 33.0 150KH 3HU O.2SEC MBN=1.74 ES 27 JUN *LDO OR MBN=2.49 23 JUN *WES D3A D3A AGH AGH CBH OR BLUE MOUNTAIN LAKE,NEW YORK 22 32 43.86N 74.48W OR MBN<l * SOURCE' DGS - DELAWARE GEOLOGICAL SURVEY EPB - EARTH PHYSICS BRANCH,DEPT. OF ENERGY, MINES, AND RESOURCES, CANADA LDO - LAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIV. MIT PSU UCT WES - MASSACHUSETTSINSTITUTE OF TECHNOLOGY PENNSYLVANIA STATE UNIVERSITY UNIVERSITY OF CONNECTICUT WESTONOBSERVATORY- BOSTON COLLEGE TABLE IV SUSPECTEDAND POORLY LOCATED EARTHQUAKES APRIL - JUNE 1977 03 APR NEAR PlATTSBURG,NEW YORK *LDO 06 39 PNY EP 06 39 22.7 PNY ES 06 39 26.6 19 APR SOUTHEASTOF MONTMAGNy,QUEBEC *WES 12 58 43.0 46.87N 70.49W 0.50 D3A EP D3A ES 12 59 00.5 12 59 12.5 103KM 103KM 45MU O.lSEC MBN=2.5 MBN=3.08 AGMEP AGMES 12 59 01.9 12 59 16.5 114KM 114KM 12MU O.lSEC MBN=2.54 CBM EPG CBM ESG 12 59 12.3 12 59 34.7 180KM 180KM 8MU 05 JUN 5T. LAWRENCEVALLEy,QUEBEC *WE5 01 21 38.5 46.90N 70.20W D3A EP 0121 51.4 82KM D3A ES 0122 02.4 82KM O.3SEC MBN=2.07 0.85 MBN=2.2 01 21 52.8 0122 04.7 92KM 92KH 9HU O.lSEC CBH EPG 0122 05.9 CBM ES6 01 22 23.0 159KM 159KM 4HU O.2SEC MBN=2.02 AGM EP AGM E5 OR OR MBN=2.33 08 JUN 5T. *WE5 18 49 D3A EP 18 D3A E5 18 AGM EPN 18 AGM E5N 18 CBM E5N 18 LAWRENCE VALl.EY, QUEBEC 16.7 46.53N 71.58W 0.12 MBN=2.4 49 46.3 194KM 50 08.2 194KM' 49 47.9 205KM 9MU O.lSEC MBN=2.64 50 10.5 205KM 50 24.1 268KM 8MU O.3SEC HBN=2.22 24 JUN Sf. *WES 02 03 D3A EP 02 D3A EPG 02 D3A ESG 02 AGH EPN 02 AGH EPG 02 AGH ESN 02 HIH ESG 02 CBH ESG 02 LAWRENCE VALl.EY, QUEBEC MBN=2.2 52.7 46.69N 71.38W 0.72 04 20.0 174KH 04 20.9 174KH 04 43.1 174KH 04 21.0 185KH 16HU O.2SEC MBN=2.55 04 23.2 185KH 04 45.7 185KH 05 01.8 242KH 3HU O.2SEC MBN=1.93 05 02.3 250KH 6HU O.3SEC MBN=2.07 OR OR INTERNAL DISTRIBUTION No. Recipien~ 15 Dr. E.F. Chiburis 1 Mr. R.O. Ahner 1 File EXTERNAL DISTRIBUTION No. Recipie!!~ 25 Dr. Jerry Harbour, Nuclear 3 Dir. Regulatory Ms. Mary Jinks, Nuclear of Reactor Safety Research, Commission Chief, Regulatory Central Main and Files, Cort'Jnission 5 Rev. James W. Skehan, 5 Dr. M. Nafi 5 Dr. Toksoz, S.J., Weston Observatory Massachusetts Yash P. Aggarwal, Institute Lamont-Doherty of Technology Geological ObservatQry 5 Dr. 5 Dr. Ken Woodruff, Delaware 5 Dr. Earth 1 Consolidated 15 Dr. Shelton Peter Paul S. Alexander, Basham, Edison Pomeroy, NEUSSN. Pennsylvania State Geological Survey Physics Branch, University Canada of New York New York State Geologist and Coordinator