~ NUREG WES-238-020 Northeastern U.S.Seismic Network Bulletin No. 13 of October ot. 9.78- iJecember31t Compiled and Edited 978 by E.F. Chiburis Paul R.O. Ahner and T. Weston Observatory-Boston Graham College Coordinator United States Geological W. Pomeroy, July Survey 19!9 MEMBERS Weston (~servatory of Boston College Massachusetts lnstitute of Technology Lamont-Doherty Geological Observatory of Columbia University Pennsylvania State University Delaware Geological Survey Maine Geological Survey State University of New York at Stoney Brook Nuclear Regulatory Commission United States Geological Survey National Science Foundation New York State EnerQY and Resources Development New York State Science Service Authority ABSTRACT This report in seismicity October the the seismicity are tables all data for velocity States. Included 918. included event United models for of appropriate for are geographic during the the quarters. locations, epicenters, An Appendix describes for the period maps of the quarter, thirteen station the quarter. States of bulletin quarterly and seismicity stations cumulative thirteenth northeastern - December network the is northeastern and of Also United Page 2 ACKNOWLEDGMENTS Partial of operation is or fuil the gratefully Office the ot U.S. Science State Foundation, Energy Science stations Nuclear Geophysics Development by the provided to NEUSSN when available. and data some of of Energy, Mines In addition the Dept. by the and Resources, to the has been provided of and Weston are provided by the of defense Geology of the U.S. and Geophysical the events Earth Hesearch, Inc. t Eplcentral in Canada near Physics Branch, the Uept. ottawa. above operational Advanced Research and by the Office Geological Edison Consolidated are routinely u.s. border New the Service. operated for the Authority, New York station u.s. the Program; of Company Regulatory Studies; Earthquake and Resources New York State Data from of Office to support ResearCh' Safety the i~etwork(NEUSSN) providing u.s. the for agencies Seismic Agencies Reactor Survey, Geological York Northeastern NEUSSN include Commission, National from various acknowledged. of members support SUrvey. support, Projects of equipment Agency Environmental Page 3 INTROUUCTION Station and operations quarter are summarized formats of the in three figures are tables for results seismicity and five the in described tables (the section EXPLANATIOt~ OF TABLES). is I Fl9Ure were operational 3 are a geographic during which those period NEUSSN stations the reporting maps of seismicIty the cumulative map of tor from the that earthquakes Figures period; reporting October period 2 and tor in respectively, 975, felt were which are shown by red symbols. Is Table 2 Table reporting Is a chronological Table azimuths, in Table 2' Table as being number of 3 4 events of operating of epicenters during arrival and periods for during times, the events aftersnocks, foreshocks, the reportlnC) could not be definitely or that did not to obtain stations; station lists lists that earthquakes arrivals list amplitudes, occurring microearthquakes 5 lists list location period; distances, Table a produce an acceptable period; identified a sufficient solution Page 4 SEISMICITY Durlnq the 14 earthquakes United of kilometers foreshocks, lists the less than u.s. 3.0. .0. 918. a In the 5 addit1.pnt earthquakes in Canada but border. Table of total nortneastern were within 4 33 includes and microearthquakes, aftershocks, 2 suspected .5 to In had epicenters The magnitudes from and located or offsnore. which - December October were detected States included period and Table 5 ealrthquakes. of the 9 eartnquakes The magnitudes of the in Table event$ 2 in Table range 4 Page 5 EXPLANATION OF TABLES Table Table I List OT Operating Seismic 1. Station code. 2. Station latitude, 3. Station longitude, degrees 4. Station elevation, meters. 5. Geographic 6. Network 2: felt north. west. location. operator Epicenter Event . degrees Stations. List. date, or191n t.1me(UTC), geographic name, 2. Epicenter determined by. WES-Weston Observatory lDO-lamont-Doherty Geolo<jical Observatory EPB-Earth Physics Branch, Ottawa. 3. Origin 4. Event latitude, 5. Event longitude, tlme(UTC) degrees. degrees. 6. Event .depth, kilometers. Depths of 0 km(U.S.) 0 km or 18 km(Canada) are restrained values. Table 7. RMS error(sec) of 8. 95% confidence and lengthsCkm) ellipse datal of semi-major 9. Event magnitude: Mn-Nuttli Lg magnitude Mc-Coda duration magnitude(WES). 31 Event t. data Event date, Station least-squares and location semi-major and -minor azimuth, axes. geographic name, and list. origin teltdata. 2. and data. cod.e. time(UTC>, Page 6 3. Emergent1e) or impulslve(i); phase type(P,Pg,P*,Pn,S,Sg,S*,Sn). If impulsive, direction of first motion included' compression(c) or dilatationCd). 4. Station 5. Epicentral 6. Station 7. Peak-to-peak 8. arrival is also time(lJrC). distance, azimuth, km. deg. ground maximum signal, envelope corrected Period, amplitude in motion, millimicrons, of the amplitude of vertical-component for system response. sec, of the was measured. 9. Mn as calculated distance. in from signal from amplitude, which period, o. Mc=2.23Log(O)+O.12LogCk)-2.36, where D is the coda duration, in sec, and k is the epicentral distance, in km. Table 41 Foreshocks, . Event date, station, Table origin ma<1"itude, 51 Suspected The format Aftershocks, and l~lcroearthquakes. time{UTC), and geographic and Poorly-Located for Tables 2 and 3. this table nearest is recording region. Earthquakes. a combination of those tor ~ Page 7 APPENDIX VELOCITY MODELS USED FOR EPICENfER LOCATIONS IN THE NORTHEASTERNUNITED STATES ViL To i)~PTl1 km/sec sec km 6. I 6.6 8.1 0.0 0.5 6.3 0.0 4.0 4.5 5.0 6.0 0.2 I .4 0.0 1.0 6.0 Blue Mtn. L.ake, New York(LDO) 5.9 0.0 0.0 Soutneastern i~Y and northern New JerseyCLDO) 5.98 6.62 8.1 0.0 1.0 6.5 0.0 7.0 35.0 New ~ngland(WES) 5.22 6.06 6.65 8.10 0.0 0.0 REGION ~~~~.- Northern New York Adlrondacks(LDO) AttIca, and New York(LDO) 0.0 35.0 0.16 0.82 1.80 12.63 5.85 30.24 ~ North 0 0 CX) V 0 tV Latitude, 0 0 &() V CD V degrees 0 p') V V V 0 0 N v 0 ~ .q- 0 0 m I<) a> rt) 0 V (0 t;.\ 6: 0 <D <D .--~ ~ ~ ""--- ~~ 0 Q) (0 ~ . ~. . ~ ~ . ..: \ ,.--' . . .-- 0 0 ~ Qj Qj ... 00 Qj '0 r-- ~ ~ QJ ~ ] ~ '0'4 ~ .3 '-J ~ ~ 0 -- ~ V t- 0 ~ ~ to to- ~ 0 CX) r- 0 ~. --- 1 0 cn Figure 1. Seismic stations operating October - December 1978 during the period ~ ,..;;;... North 0 <X) V 0 l"V 0 CD V 0 I() V Latitude, 0 V V degrees 0 f() V 0 (\J V 0 V 0 w w 0 CX) w 0 0 to~ QI QI s.. CIO QI "0 ~ QI ] ~ c ~ .3 0 v r-- ~ ~ ~ .to ~ 0 CD r- 0 0 a) Figure 2. Earthquake epicenters: duri,ng the period October - December 1978 0 0 0 q- m I<) 0 CX) ~ North 0 CI) V 0 r-- v 0 <0 V Latitude. 0 0 V V an V degrees 0 ~ V 0 N V - 0 V 0 V CD 0 CD CD 0 OJ CD 0 0 r~ Qj Qj ~ tIC Qj ~ . Qj ] ~ ~ ~ 3 0 (\J ,... 0 V t- ~ ~ Qj :s 0 to ,... 0 a) r- 0 0 CD Figure 3. Earthquake October epicenters 1975 - December during 1978 the period 0 0 V 0 m ~ 0 CX) ~ TABLE LIST OF OPERATIi~G SEISMIC STATIONS BY STATE OCT()B~R- DECEMBER' 918 STA 10 LATITUDE LONGITUDE ELEVATION degrees degrees meters OP~RATOR CANADA,STATIONS USED FOil LOCATIONS IN. THIS BULLt:.TIN DLA ELF LND 42. 85830N 43. I 9330N 43.04000N ELGINFIELD,ON LONDON.ON EPB EPB EPB BROOKFIELD.CT ELLSWOwTH.CT HADDAM,CT N STONINGTON.CT STORRS,CT ~~ES VIES WES VIES r'fES BLACKBIRD,DE GEORGET.OWN ,DE NEWARK,DE DGS DGS DGS 69.49510W 67.48943~ 69.64080~ 10.24260" 69.04028~~ .70.25508W 250 304 402 259 490 365 430 20 79 378 140 1.13 ALLAGASH,l.4E BUCKSPORT,ME CARIBOU,ME DICKEY.ME DICKEY(KELLY MOrn),ME DICKEY(CARTER BROOK),ME DICKEY(ROCKY MTN),ME DICKEY(BRQWNSBROOK),ME DICKEY (TWO MILE STREAM), EAST MACHIAS,ME HINCKLEY,ME JACKMAN,ME MILO,ME TURNER,ME WES WES WES WES VIES WES WES WES WES WES WES WES WES WES JO.13500~ JO.76178W 71.12152~ 70.72722W 71. 55833w~ ~85 21 52 15 180 CAPE COD,MA DUXBURY,MA FALL RIVER,MA GlOUCESTER,MA HARVARD,MA MIT MIT ~ES MIT MIT 81.57330~ 81.31500~ 81.18330~ 221 320 246 DELAWAHE,ON CONNECTICUT BCT ECT HDM NSC UCT 41 .49 332N 41. 83463N 41.48515N 41.48014N 41.83161N 13. 3838J~~ 69 13.411132~ 342 12.52321,~ 24 11.85158~ 110 72.25055~ 149 DELAWARE 75.67667W BBD 39.346JIN 38. 74139N 75.41444r~ GTD NED 39.70421N 75.70818n 18 15 46 MAINE AGM BPM CBM DIA D2A D3A 04A D5A D6A EMM HKM JKM MIM TRM 47.08167N 69.02332~ 44.63167N 68. 78933w; 46. 93250N 68.12079rl 4J. 05855N 69. 09894,~ 47. 13036N 69.15244~ 47. Q8.755N 69.168J2r'4 47. 18810N 69.27670~ 41.0.l130N 69.26500W 41.08900N 44.73917N 44. 65640N 45. 65550N 45.24361N 44.25969N 240 80 l.4ASS ACHUSETfS COD DUX FlR ala HRV 41.68560N 42.06861N 41.71666N 42. 64028N 42.50639N TABLE LNX PAGE 2 OF 3 Continued 42.33890N .73.27240~ QUA 42.45661N J2.37383~ WES 42. 384.69N 11. 32208r~ WFM 42.61056N 7..49056~ WGMA 42.28900N .71.58500W 345 201 60 8J 130 LENOX,MA QUABBIN ,MA WESTON,MA WESTFORD,MA ~ESTBORO,MA WES WES ~ES MIT ~GE 472 200 24 200 180 200 200 280 659 200 220 BERL1N.NH CENTER SANDWICH.NH DURHAM.NH GOE HILL.NH HANOYER.NH LACONIA.NH MOULTONBOROUGH.NH OAKHILL,NH PITCHER MTN,NH WES WGE MIT WGE WES WGE WGE MIl MIT WGE MIT HAMPSHIRE BNH 44.59059N CSNH 43.81600N 71.25638~ 71.46200w DNH 43. 12250N 70. 894J.8W GHNH 43.87 OOON 71. .11 900W HNH 43.70528N LANH 43.59100N MBNH 43..72700N 72.28556W 71.49000~ 7J.32200r4 ONH 43.27916N 71.50554~ PNH 43.06 I 94N 72. 13582r~ WBNH 43.60400N 11.09900r4 WNH 43.86832N 11.39972~ ~'40LFEBORO, NH WHITEFACE.NH JERSEY GMTN 40.88250N GPO 41.01767N LVNJ 40.80950N aGO 41.06667N paN 41.00731N 14.IB450~ 165 74. 46083r1 360 74.75150t. 201 74.61664W -363 75.08582_1 229 PRIN 40.36683N 74.71783_~ liD RAMA 41.09517N 74.21400_1 247 GARRET MOUNTAIN.NJ GREEN POND.NJ LONG VAu.EY.NJ ()GUENSBURG. NJ PAHAQUARRY.NJ PRINCEION.NJ RAMAPO.NJ Loa Loa Loa Loa Loa Loa Loa NEW YORK ALX ' 44.32250N 75. 92800,~ 122 APH 43.84131N 74.49698H 564 BGR 44.82883N 74.37417w. BING 42.0/75.67N 75.97667w BLM 41.32970N ,73.95499tl CANY 42.92550N 78. 85283,~ CLIN 41.81500N J3.84900~ CLY 43.85132N 74.44899i~ CR(~ 43.90500N 75.41250~ CTR 43.87415N 74.45998~ DANY 44.~5833N 73.83567w DBM 41.29442N 73.97498~ DNY 42.83632N 78.16881~ DPL 4J.25278N 73.91083~ EGN 43.85962N 74.48183f4 GOB 41 .32944N 73. 921 94,~ GSC 41 . 2661 ON 74. 0O388r~ IPS 41.26722N 73.94833w 329 408 134 192 168 5.79 244 585 507 27 381 67 549 150 110 0 AMr~H 40.78083N 73. 97383r~ 0 MEDY 43.18183N 78.39033r~ 186 I\(SNY 44. 99833N 74.86200t~ 55 OCN 43. 88483N 74.52933t~ 701 OSB 41.36028N 73.92386~ 212 ALEXANDER BAY,NY AIRPORT HANGAR,NY BANGOR,NY BINGHAMTON,NY BLUM,NY CANISUS,NY CLINTON,NY CRYSTAL LAKE,N'i CROOHAN,NY CASTLE ROCK,NY DANNEMORA,NY DUNDER8URG MTN,NY DERSAM,NY DELLI PAOLI,NY EAGLES NEST,NY GOBBELET,NY GIRL SCOU'f CAMP,NY MANHATfAN,NY MEDINA,NY MASSENA,NY OVER CASn.E ROCK,NY OSBORN,NY LDO LDO LDO LDO CON* LDO LDO LDO LD<) LO<) LO<) CON* LDO CON* LOO CON. COi~* CON. LDO LDO LOO LOO CO1'i* TABLE PAGE 3 OF 3 Continued PAL 41.00417N 73.90915~ PNY PIN SANY SNP 44.83414N 44.57248N 43. 1 1383N 4.1.2'4083N 73.55498:."4 .74.98282.1 78.87033rl 73.97110,- SPS SRM Sn. TBR 41.30193N 41.22832N 41.18860N 41. 14165N 73.89055W 74.01389n 74.00359w~ 74. 22220w~ UWL 43.83783N 14.54332~ WGL 41. 35889N WND 42. 33150N WNY 44.39098N 73.89943,~ 74.15250~ 73.85950~ WPNY 41. 80300N WPR 41 .25464N 73.97067.~ 73.58565'(~ WVLY 42.4JO83N, 78.56833" 91 1:77 238 172 30 168 165 125 261 561 152 602 598 76 152 600 PALISADES ,NY PLATTSBURG ,NY POTSDAM,NY SANBORN,NY WEST VALLEY,NY LOO LDO 1..DO LOO COl~* CON* CON* CON* LD<) LOO CON* LOO LOO LOO LOO LD<) 0 0 0 0 352 BEAVER,PA ERIE,PA MILLERSVILLE,PA ABINGTON,PA STATE COLLEGE,PA PSU PSU MSC PSU PSU 3 00 85 3 70 366 2 95 5 80 13 4 262 240 BALTIMORE,VT COLCHESTER,VT DERBY,VT FLETCHER,VT IRA,VT MARLBORO,VT MIDDLEBURY.VT STONEY PT,NY ST PETERS SCH{)()L,NY SCHERMAN,NY STILES,NY TABLE ROCK,NY UTOWANA LAKE ,NY WEGEL,NY WINDHAM,NY WI LM INGTO1'J, l~Y ~4ESTPARK,i'IJY WARD POUND RIDGE,NY PENNSYLVANIA BVR ERI MVL PHI SCP 40. JOOOON 80. 33333t~ 42. I 3332N 79.9,8331 ~~ 39.99917N 76.35056rl 40. II 664N 75.13332V~ 40. 79500N 71.86497~ RHODE ISLAND VERMONT BVT 43.34882N 72.S8S26~ COV 44.S1761N 73. 1 4583v~ DVT 44.96200N FLET 44.72278N 72. 17090~~ 72.9S167,~ IVT MARL 43.S22t4N 42.83833N 73.0S327~ 72.80083n MDV 43.999&SN :73.18114~~ MDVT 44.91J61N 72.62.778~~ MPVT 44.27833N J2.60667n * MONTGOt4ERY.VT MONTPELIER9VT WES LO<) WES LOO WES LDO LOO LOO LOO STATION CODES NOT ALL CLEARED THROUGHNEIC OPERATOR CODE CON DGS -- CONSOLIDATED EDISON,INDIAN POINT,NY DELAWAREGEOL()GICAL SURVEY -- LAMONT-DOHERTY EARTH PHYSICS BRANCH,DEPT.OF ENERGY,MI1~ES,AND~ESOURCES,CANADA GEOLOGICAL OBSERVATORYOF COLUMBIA UNIVERSITY MIT - MASSACHUSETTSIN~TI.ruTE OF TECHNOLOGY MSC - MILLERSVILLE STATE COLLEGE PSU - PENNSYLVANIA STATE UNIVERSITY WES EPB Lo() .WESTON OBSERVATORY,BOSTON COLLEGE C\/ W ..J co ~ (/) ~ ,... ..., ~ W 0: H Z w U < ~ Z< - 00: .c(W !-4 CD (/)O~ ""'ZW -J<U W ~(/)Qa> I-UW t": ~!-4'o. 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N ~. c: ::i 0- 0- -. '0 ~ . "It' - ~ N V ~ 0 CX) N . . ~ w~ 0:C'\/ UJ'O u. >0-'0 0: UJ . ~ ~ ~ . ~O <""" -J w ~ ~ t.n . N . 0 ~ <X) :c IX) C\I . ~ Ot'¥') -0 > ,... f-t (/) < . u :s ~ ('\j . ('\j c: ::s; .q- ('\I N I:t) t"" N 0. u ~ co -. u -~ . (\,1 c ~ "". ('\I 0 C ::i '0 . '0 . , v. z r-:. -0 <r!-4 Z ~ ro . '.:sZ -0 !oUr-.. ~ . -Iv CD-q. W ~ .('\1 00 U UJ a rot/) ""UJ o.~ -olc ~ . '0 ~ ~ ~ 0 - ~ .0 ~ Z 0-4 (X) ::: CX)U) ro-w 0-:-: -~ u w Q R.~ o~ 0-0 ~ .0- roo. -. ~ w ~ u. oz .qo !-to (/) . UJ~ ~. a UJ . !-to. ><'0 UJ ~.qo . tn --. '0 -. 0\ t"Y . 0 ~ In . 0 f:= 0 ~ ~ 0- tX 0 N o~ Uln f-t . ~:S ~ :I: f-t ~ Oz. . . 00 --tc Z OOtn ~UJ o-~ ~ NO > ~O- -LnN lnO 0 ?;;~ ~~ Ln (/) Z u. . u.(W') C\I (/)f'-. -< ..J~ :Jr: Oln ~"it" . 0.0 0 . 1Q ~ 0\0 00 > ~ 0000 """0. O\W -. ("'). . t'¥')t'¥') o. Z oo<n t'--UJ o.~ --tc .-. '"" 8~ 00;': N N a) . z.v ~ Q 0. :z :I:~ !-4~ c: . or-- f-t -~ . z UJZ UO\ (/)0\ UJ . ~('01 Uv 00 0- . UJ ~ ~O CJ '"" OOU') r-W o-~ I.C\ . , '0 ~ ; ~ v . . -0 0 ~ - . . 0. CD 0\ to') ~ N . IV) . 0~ -~ 0. In 0. N N 0 . 0 IX 0 . t'"- a. :::) t"') 0 a -~ w~. ~O <r-. 'z; W'z; uo cno w . 5~ . W 2: 00 O:X -10 0: 0 ~ 0 UJv . ~~ .oJ E-t Z wz ur'.1)0w . o:~ ..J !-t ~ UJZ Uv C/)O\ UJ . a:~ u~ . W 2 f-t ~ 0 w ~O <~ ..J 0: 0 :;)~ '""'~o I-c . ~<r'-0 L1.. 0 Z :I:~~ 0U')v . < 2 . tn o-N V . ,... -00. O~ N-~ C¥'t-o 0- -v , rot/') ~LU o.~ -ok ~OOtW') -~ -ON 0-0 1-0 ~O U ""' "-' CD(/) --It o.~ ~W U ,... ~O !-t tW') Uv . UJ ~ ~oo. O\"f#' In (¥)O\ NIn N t'it'i It\ r-,t'i t'ilt\ r-. -0 r--r-, Nt'i f-4 (J '" o.(¥) NN H U 0 OOtn ~W O\~ -~ OOU> I-':W O\~ -~ , 0 '604 N Q) 01 CO a. "0 Q) ::J C +.I c: 0 -u N UJ 'ffi ~ M 0 ~ Q) 0' It! Q. ,.. Q) :;, "0 -c: ~ c: 0 u ""' N l1J -J 00 -< f-4 UJ § f.-4 Z t:> < ~ -.U NLU i I I , I -~ I ~C/)I LU ~Z , c: XXI > - . H Z~ ~ "" . N 0 -('\I. z ,... ~D -Z ~ -J~ -0~<X) . ~('"') ~ f-t U) -0 . 0 UJ ~~ XN f-ttn a: . O~ Z~ . >~ "ft'tt'\ N o-"ft' ON 000NO C.) W 0 00'"" r--CS 0--1 -ok <.) (tJ (tJ "U C (tJ <.) >. 11)-1-' Q)..-4 UII) ~~ :JQ) 0> o)c 11) 0::;) "UCO C..-4 (tJ.Q e ~:J ~ 0 11).-4 0)0 CU ..-4 ~ ~~ -I-' C(tJ~ 0) ~Oo) .Q UJ>.-4 ~-4 ""'Q)O 011)<.) 0.-4-1-' Q)(tJ1I) .OC -I-' o~~ U-4 ~O' .cO, CO>' (tJQ)~ ~~O CD >-(tJ 11)-1-'> U~~ >'0.0 1I).c1l) ..-40)Q) .cOO 0.1 01 0 I -I-' -I-'C .cCO -1-'0-1-' , ~ell) (tJ(tJQ) ' UJW..J~ ~ OCDO(/') (/')o.OUJ W..J~ ok TABLE 3 ~ARTHQUAKEDATA LIST NORTHEASTERNUNITED STATES AND ADJACENT REGIONS OCTOBER DECEMBER - 1918 51 A PHASE AZ 9780CT030315 SANYeP SANYeS DNY eP DNY eSWVLYePg 03 03 03 03 03 NED eP PRIN epq 47.2 51.2 50.3 56.9 58.0 29km 29km 47km 47km 18km PA,LANCASTER 19 25 55.8 06.7 08.5 PQN LVNJ GPO AMNH epq ePg ePg ePg 19 19 J9 19 19 PAL eP* 19 26 20.4 TBR eP* ~VPR eP* 26 26 26 26 26 09.8 14.5 18.5 19 26 18.4 19 26 25.0 CLIN eP* 19 26 26.2 19 26 27.7 BCT ECT HDM UCT NSC QUA eP* eP* eP* eP* eP* e** 19 19 19 19 19 19 WPNYeP* 26 26 26 26 26 26 28.1 31.1 35.2 39.8 42.5 54.5 MARL eP* 19 26 45.0 BVT 19 26 52.3 eP* 19780CTI2 OIOJ PTN eP PTN eS MSNYeP MSNYeS BGR eP BGR eS Continued PEHIOD MAGNITUuE -- --- NY,MEDINA 15 15 15 15 15 211dg 211dg I 42dg I 42dg I 83dg J9780CTO4 718 ME,U()V~R-F()XCR()FT 1~1.M eP 1 18 20.3 11km 56dg BPM eSg 1 18 38.4 68km 155dg HKM ePg 1 18 31.3 l1km 213dg HKM eSg 1 18 38.5 l1km 213dg JKM eSg 7 18 41.5 100km 302dg EMM eS* 1 18 58.5 140km .JIOdg BNH epg 1 t 8 48.0 I -'9km 249dg BNH eSg 1 19 10.6 119km 249dg 9780CT061925 AMP 51km 30.8 33.4 33.3 37..8 36.5 44.0 4mu 2mu 3mu O.2sec O.2sec O.2sec 55mu 64mu 28mu O.3sec O.3sec O.2sec . 681.'ic .SIMc . 771-\n .50Mn .86Mn .94Mc INT. V 140dg 13dg 38dg 141km 53dg 174km 52dg 191km 65dg 199km 52dg 213km 60dg 250km 57dg 264km 42dg 216km 42dg 279km 54dg 300km 48dg 340km 61dg 379km 51dg 391km 65dg 410km 48dg 414km 41dg 468km 31dg 122km 136km NY,MADHIU 0107 01 07 01 07 0107 0107 0107 5mu O.2sec 20km 20km 36km 36km 59km 59km 50dg 50dg 33dg 33dQ 19d9 79dg 41mu O.3sec IOmu O.2sec 3 . 08.~n 2.91Mc 3.I]Mn 3.03Mn 2.94Mc 2.94Mc 3. 1Ol.{n 3.01Mc 2. 74Mn 3.13Mc TABLE 3 (Continued) STA --- ARRIVAL PHASE ._-~-~- ALX ePg CROG .ePQ CROG eSg DANYePq UANYeSg WNY eSg APH epg APH eSg PNY eSg 01 01 01 LND eP LND eS ELF ePg ELF eSg DLA epq DLA eSg SANYaPg SANYeSg WVLYePg DNY aP* I 9780CT20 42.8 01 55..8 0107 01 01 0' 01 01 08 51.6 45.1 58.2 01.9 0539 05 05 05 05 05 05 05 9.780CT24 0337 MDV ePg MDV eSg MPVT epg MPVT eSg HNH epg WNY epq WNY 8.5g PNY epg PNY &5g MGVT e,Sg CLY eP* CLY eS* MARL eS* BNH e 0.1 42.5 01 53.6 01 22 22 22 22 22 22 22 22 22 22 ePq eSg epg eSg ePn eSg eSg 0.7 40.0 0101 19180CT152236 EMM EMM BPM BPM MIM MIM CBM Page --LJIST 79 km 95 km 95 km 101 km 101km 106 km 110km 110km 124 km AZ AMP --- PERIOD --- 2 ot 6 MAGNITUiJE 235dg I 95dg I 95dg 88dg 88dg .IIOdg I 53dg 153dg 84dg ON,DRUMBO 3J 3J 3J 37 37 37 37 31 37 37 04.2 JI.5 05.9 13.3 08.3 17.4 17.8 33.9 24.9 28.8 NB,LAKE 39 48.1 39 56.] 40 03.6 40 23.8 40 03.3 40 25.8 40 37.9 5Jkm 57km 62km 62km 94km 94km 138km 138km 186km 20lkm UTOPIA ]3km 73km 167km 167km 113km 173km 217km 244dg 244dg 262dg 262dg 241dg 241dq 94dq 94dq 118dq IO3dg 225dg 225dg 248dg 248dg 212dg 212dg 333dg 4mu O.lsec 2.25Mn 2.08Mc 2.02Mn 2.04Mc 3mu o. sec 3mu O.2sec . 81 t~n 5mu O.lsec .95Mn 2mu O.lsec .86Mn VT,SOurHEAST OF BRISTOL 03 37 28.8 03 37 31.4 03 31 32.0 03 37 36.2 03 37 37.3 03 37 31.7 03 37 47.0 03 37 40.4 03 37 52.3 03 37 51.2 033J 44.4 03 37 59.4 033803.5 20km 20km 36km 36km 11km 77km -77tm 94km 94km 95km 121km 121km 141km 148km 235dg 235dg 56dg 56dg 128dg 295dg 295dg 331dg 331dg l.7dg 257dg 257dg 174dg 68dg 2.I~Mc PaQe 3 of TABLE 3 (Continued) ARRIVAL 19780CT262153 DNY eP DNY eS WVLYePg WVLYeSg SANY ePg SANYeSg BING eSg CROG eP* CRaG eS* ALX eP* ALX .eS* APH eP* APH eS* ClY eS* 21 21 21 21 .2J 21 21 21 21 21 21 21 21 21 19.780CT212352 NSC NSC WES WES ijCT UCT HDM HDM QUA QUA ePg eSg epq e.** eP* eS* eP* eS* ePg eSg 23 23 23 23 23 .23 23 23 23 23 ePg eSg epg epg eP* ePn ePn epg ePgo ePn epg ePg ePg 35km 35km 65km 65km '04km IO4km 165km 240km 240km 241km 241km 30lkm 30lkm 305km ~_. --- 37km 37km 99km 100km 150km 181km 188km 188km 191km 230km 249km 294km 339km 18dg 18dg 317dg 37dg 59dQ 36dg 250dg 204dg 4dg 225dQ 68dg 234dQ 22:7dg O.1sec 4mu 3mu O.lsec O.lsec .99,\o\n .84Mn 3mu O.lsec .99Mn 3mu O.2S8C .81Mn 06 06 32 32 23.8 29.8 35km 91km 22dg 316dg HKM HKM BPM BPM HNH epg. eSg eP* eS* eSg 06 06 06 06 06 32 32 32 32 32 30.0 41.3 37.7 55.3 57.3 98km 98km 149km 149km 153km 39dg 39dg 60dg 60dg 260dg .64Mc 2. 601.(c 2mu O.lsec 2. 49Mn 2.65Mc 2.19Mc 2. 23mu O.3sec 12mu O.2sec 2.53Mn 2.43Mn 70l.\c 2.69Mc 2.62Mc 2.63Mc 2.74Mc 2.69Mc 2..81 Mc 2.78Mc ME,CRESCENTLAKE eSg ePg .26Mc 1.79Mn 3mu ME.CRESCENT LAKE 23 59 49.3 23 59 53.2 2359 59.3 23 59 59.7 240007.8 24 00 .110.1 24 00 12.7 24 00 13.4 240014.4 240017.5 24 00 23.4 24 00 3J.2 24 00 38.5 THM BNH Continued PERIOD 3O6dg 306dg 252dg 252dg 305dg 305dg JI2dg 54dg 54dg 39dg 39dg 63dg 63dg 63dg MA,SO(JfH OF DARTMOUTH 25km 331dQ 52 38.3 71km 261dg 52 47.6 71km 267dQ 52 43.9 100km 345dQ 52 54.5 100km 345dg 52 44.8 JIOkm 2.89dQ 52 51.8 .1JOkm 289dg 52 41.5 121km 269dg 53 02.6 121km 269dQ 52 52.0 J54km 313dg 53 11.2 154km 313dg 23 52 30.6 19J80CT30 0632 . 47.1 50.1 51.2 00.3 58.0 11.5 24.7 16.6 44.6 17.3 45.2 24.8 00.3 00.4 epg TRM TRM BNH HKM BPM MIM BV~ WES JKM QUA EMM LNX ECT AMP .-- NY,MOUiiTj~ORRIS 53 53 53 54 53 54 54 54 54 54 54 54 55 55 FLR 9780CT292359 -AZ 1)15T -- 6 3mu O.2sec . 1 801,(n Page TABLE 3 (Continued) 06 32 41..7 06 33 05.0 06 33 07.5 19780CEl- 0316 TRt~ ePg 03 TRM eSg 03 BNH epg 03 HKM epq 03 HKM eSg 03 BP,\( eP* 03 BPM eS* 03 MIM ePn 03 MIM egg 03 EMM ePn 03 79km 19km 88km ME,CRESCENTLAKE 16 53."3 32km 25dg 16 57.5 32km 25d; 1J 02.9 93km 315dg 17 04.0 97km 40dg IJ 14.9 97km 4Odg 17 ,11.7 149km 61 dg 17 29.1 149km 61dg 17 15.5 1.7Jkm 38dg 17 38.1 117km 38dg 1J 24.2 248km 70dg 9180CT31 0449 epg eSg epg eSg 04 04 04 04 34.4 38.1 45.1 56.5 32km 32km 91km 91km BPM eP"* 04 49 53.2 149km BPM eS* MIM ePg MIM eSg 04 50 10.J 04 49 58.2 04 50 20.1 149km 177km 177km 49 49 49 49 978NOV09 0028 ePg ePg 174dg 159dg 160dg 160dg 00 28 29.3 10lkm 00 2842.2 00 28 30.1 I 0.1km 00 28 38.7 0028 25dg 25dg 4Odg 40dg 61dg 61dg 38dg 38dg 95km 97km D3A eSg AGM eP* CBM eSg .41Mn .71Mc O.lsec 2.21Mn .98Mc 3mu O.3sec .57Mn .99Mc .96Mn .76Mc 4mu 3mu O.lsec PQ.NOR1"H OF RIVIERE DU LOUP 00 28 28.7 00 28 29.2 D3A ePg CBM ePn mu O.2sec ME,CRESCENT LAKE TRM TRM HK~ HKM D6A D2A 3.7dg 31dg 4dg .901.(c ePn eSg eSg 6 AZ STA PHASE MIM MII~ JKM 4 of 58.5 I 978NOV10 0343 PO,WOlF MSNY epg 03 .44 00.4 MSNYeSg 03 M 11.1 BGR eP* 03 -44 05.4 BGR e.S* 03 44 20.2 PIN eP* 03 44 06.8 PIN eS* 03 44 22.2 DANYePn 03 44 JI.O DANYeSn 034429.3 ALX ePn 03 44 1J.8 ALX eSn 03 44 30.8 PNY eSn 03 44 32.2 APH ePn 03 44 20.1 APH eSn 03 44 44.5 106km 155dg 159km 134dg 159km lAKE 81km 81km 122km 122km 130km 130km I 56km 156km 164km I 64km 168km 218km 218km I 34dg I 58dg I 58dg 144dg I 44dg 110dg 110dg I 33dg 133dg I 98dg 198dg 125dg 163dg I 63dg 2.09Mc 9mu O.lsec 7mu O.3sec 2. 36Mn .1.9JMn 2. Mc Page 5 of TABLE 3 (Continued) $I A PHASE ARRIVAL 976NOV23 0915 EMM ePn 09 EMM eSn 09 BPM ePn 09 HKM ePn 09 MIM ePn 09 JKM ePn 09 BNH ePn 09 NS,OFF 5 59.4 6 6 6 6 6 6 21.5 06.9 14.2 12.9 26.3 27.4 OIST --- AZ .- --AMP SOUTHWEST C{)AST 20lkm 331dg 201.km 331dg 261km 309dg 319km 302dQ 321km 317dg 421km 312dg 432km 293dg PERIOD --- 6 MAGNITUUE 5mu O.2sec 2. 55Mn 2. 78tAc Omu O.3sec 2.30Mn 3.01Mc Bmu O.2sec 2.31Mn 2.84Mc 2mu O.lsec 978DECO40205 ME,BLUr: MOUNTAIN BNH BNH HKM HKi'I\ JKM JKM MIM BPM ePg eSg ePg eSg eP* eS* eS* eSg 02 02 02 02 02 02 02 02 978UEC20 0439 MIM iPgD 04 HKM IPgD 04 HKM eSg 04 BPM ePg 04 BPM e.Sg 04 JKI~ ePg 04 JKM eSg 04 BNH eP* 04 EMM epg 04 EMM eSn DVT epg D6A e AGM epg 05 05 05 05 05 05 05 05 08.4 14.2 16.4 29.5 20.9 33.0 42.4 47.5 41km 41km 92km 92km 109km 109km 148km 159km 244dg 244dg 97dg 97dg 23dg 23dg 68dg 94dg ME,WES.i"OF DEXTER INT. 39 07.9 41km 58dg 39 09.2 45km 196dg 39 14.4 45km 196dg 39 13.8 J2km 130dg 39 22.6 72km 130dg 39 11.2 90km 319dg 39 21.2 90km 319dg 39 26.6 149km 251dg 39 28.5 lolkm 102dq 04 39 46.7 161km 102dg 04 39 37.1 212km 269dg 227km 36Odg 04 39 40.2 229km 9dQ I 918DEC28 0924 ~"NY iP C 09 WNY eS 09 DANY iP D 09 DANYeS 09 PNY iP C 09 BGR eP 09 BGR eS 09 COY eP 09 COY eS 09 FLET epg 09 FLET eSg 09 MuV ePg 09 CLY epg 09 CLY eSg 09 PTN iPgC 09 PTN eSg 09 APH epg 09 Continued mu mu o. sec o. se.c II 3mu o. 3mu o. sec .59Mn .61Mn .75Mc 2.15Mc 2.12Mc sec .771~n .99Mc 4mu o. sac .94Mn .99t.~C 2mu 9mu O.lsec O.2sec 1.87Mn 2.56Mn 2. I ot..c 5mu o. sec 2.40Mn 2. 17Mc 5mu o. sec 2.42Mn 2.13Mc 2.19Mc NY,NOR1.HWEST OF WILMINGTON 24 53. 1 15km 170dg 24 55.1 15km 110dg 24 54.9 21km 9dg 24 58.1 21km 9dg 24 51.4 44km 31dQ 24 58.1 52km 312dQ 25 05.2 52km 312dg 24 59.1 60km 84dg 25 01.0 60km 84dQ 25 02.6 18km 13dg 25 12.6 78km 73dg 25 03.1 81km 135dg 25 03.9 81km 211dg 25 14.5 81km 211dg 25'04.3 81km 214dg 25 15.3 81km 214dQ 25 04.3 90km 213dg INT. IV 1.95Mc TABLE 3 (Continued) Page UI5T AZ AMP --~ APH eSg MSNYePg MPVT epg MPVT eSg MGVT e Pg ALX epg 09 09 09 09 09 09 25 25 25 25 25 25 15.5 05.1. OJ.2 19.6 01.7 15.8 9Okm 213dg 94km 305dg 106km 104dg IO6km 104dg lO9km 66dg I 64km 263dg PERIOD --- 6 of 6 TABLE 4 FORESHOCKS, AFTERSHOCKS, AND MICR()-EAtlTHQUAKES DATE ARRIVAL-TIME STATION .14 OCT 1617 CTR 15 oc'r 06481.8. TBR 29 ()CT 0731 ATT 30 i'lOV 0049 CTR 04 DEC 010128. CTR 04 DEC 010242. CTR 09 DEC 2007 CTR 09 DEC 2017 CTR 09 DEC 2200 CTR 09 DEC 2232 CIR 09 DEC 2238 CTR 09 DEC 2320 CTR 10 DEC 2314 CTR 11 DEC 1)012 CTR II DEC 0223 CTR 11 DEC 0241 CTR 11 DEC 0447 CTR I 1 DEC 0456 ("TR 11 DEC 0456 CTR .11 DEC 0516 CTR II DEC 0600 CTR II DEC 0616 CTR JI DEC 0727 CTR II DEC 075:7 CTR JI OEC 0759 CT~ 11 DEC 0800 . CTR 11 13 15 16 16 24 24 DEC DEC DEC DEC DEC lJEC OEC 0802 0550 0101 0013 0052 ()844 1240 CTR CTR CTR CTR CTR CTR CTR MAGNITUDE <I <I <1 <1 <I <I <1 <I <I <1 <1 <1 <1 <I <I <I <1 <I <I <1 <1 <1 <1 <I <1 <I <I <I <1 <I <1 <1 <I LOCATION BLUE MOUNTAIN LAKE, TABL~ R()C1(, NY AnICA, NY NY BLUE MOUN'fAIN LAKE, NY BLUE MOUNTAIN LAKE, NY BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE MOUl~TAIN MOUNTAIN MOUNTAIN MOUNTAIN, MOUNTAItJ MOUN1"AIN l~OUNTAIN MOUN1"AIN MOUNTAIN MOUNTAIN MOUNTAIN tAOUNTAIN MOUNTAIN MOUNTAIN MOUNTAIN LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, LAKE, NY NY NY NY NY NY NY NY NY NY NY NY NY NY NY BLUE ,'40UNTAIN LAKE, BLUE MOUNTAIL~ LAKE, NY BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE NY NY NY NY NY NY NY NY N¥ NY NY MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE, MOUNTAIN LAKE. NY TABLE 5 SUSPECTED AND POORLY LOCATEU.EARTHQUAKES NORTHEASTERN UNITED STATES AND ADJACENT REGIONS (>CTOBER DECEMBER - 1978 19780CTI 0 2148 *\'fES 21 48 1() D6A D3A D3A UIA AGM CBtA CBM epq epq eSq ePq epq e Pn eSn 21 21 21 21 2. 21 21 1 9780CTI 9 1752 *WES 17 52 31 AGM ePg 17 DIA eSg I7 CBM ePg 17 CBM eSg t7 PQ,RIVIERE UU LOUP 47.9N 69.6W OR 0.10 48 48 48 48 48 48 48 24.3 25.2 36.5 26.1 25.8 34.5 52.5 87km 92km 92km 97km 97km 152km 152km 175dg 159dq 159dg 157dg 153dg 132dq 132dg 89 6.2 2.16Mc 9mu O.4sec 52 40.9 52 50.4 52 46.3 52 57.3 68.8W 64km 68km 93km OR 0.24 196dg 200dg I 47dg 93km 14Jdg I 6 07 41.8 t 6 07 26.2 I 84km 178dq 250km 156dg 19180CT262145 *WES 21 45 15 D6A epg 21 D6A eSQ 21 D2A epg 21 D3A ePg 21 D3A eSg 21 160 5mu o. 80 sac 3mu O.2sec ePg 1978NOVO31247 *LD<) MDV MDV WNY WNY Continued NY,LAKE GEORGE 43.8N 73.5W OR 0.46 12 47 16.4 34km 49dg 12 47 20.8 34km 49dg 12 47 22.4 72km 337dg .12 47 31.7 72km 337dg 11 12 47 eP eS ePg eSg 12mu O.3sec PO.NORTH OF RIVIERE DU LOUP 41.9N o9.6W OR 0.10 90 9.7 45 30.3 91km 176dq 45 41.6 91km 116dg 45 30.1 92km I 59dg 45 31.1 96km 161dq 45 42.9 96km 161dg 21 45 32.0 10lkm 155dg 6mu O.Isec 21 45 32.1 10lkm I 59dg AGM ePq DIA - 2.02Mc .92Mn PQ,SOUIHEAST OF CABANO 47.6N 19780C'f23 1606 PQ,.SOU.L'H~EST OF LA POCATIERE *WES 16 06 49 47.3N 70.3W OR 0.40 128 9.0 D6A epg 16 07 00.2 68km II0dQ D6A eSg I.6 07 08.8 68km II0dQ D3A ePg I.6 07 04.4 92km 105dg OIA epg 16 07 05.3 98km 106dg 01A sSg 16 07 18.0 98km 106dg AGM ePg 160106.1 103km 103dg 25mu O.lsec AGM eSQ 16 07 19.5 103km 103dg CBM ePn t 6 07 16.7 174km 103dg 18mu O.2sec CBM sSg ...607 38.4 114km 103dg JK1A e Sg MIM ePn .9t~n 2. I MC 3.4 58 1 .8Mn 1.92Mn .65Mc .64Mn 5.0 2 .6Mc .51~n 2. 3Mc 2.81Mn 2.24Mc 2. 59Mn 2.38Mc 2. 24Mn 3. 2.2Mn 2.4Mc 2.47Mc 2.39Mc 2. 44Mc 2.20Mn 2.36Mc TABLE 5 (Continued) CLY ePg CLY eSg FLET epq FLET eSg PNY ePq PNY eSg MARL epg 12 12 12 12 12 12 12 1978NOV 13 1945 *WES 19 45 46 AGM epg I9 AGM eSg 19 19 D3A ePg CBt.i ePg I' 9 CBftt eSg 19 Page 2 of 47 47 47 47 47 47 47 23.2 33.2 28.5 43.3 29.0 43.4 30.1 3 7k m 27 5 d9 2 7 5 d9 ,II 2 k m 2 3 d9 .11 2 k m 2 3 di9 ... 1 5 k m 3 5 8,d 9 35 8 d9 11 5 k m 12 I k m 15,2 d 9 .7 .7 7 k m PQ,CABANO \.'>8.9W 47.1N 45 46 45 46 51.4 06.2 51.9 03.0 70km 70km 72km 103km 46 I 5'.5 103km OR 0.08 I I I I 89dg 89dg 98dg 46dg ., 5.6 2mu O.2sec 5.4 .3,~n 1. 8Mc 1.68Mc .97Mc .30Mn I 46dg 19781~OV13 2009 *WES 20 09 00 D6A epq 20 D3A epq 20 D3A eSq 20 AGM ePq 20 CBM ePn 20 CBl~ eSq 20 PQ,RIVIERE DU LOUP 47.9N 69.6W OR o. 9 70 J .9 09 15.1 86km 174dq 09 15.7 92km 159dq 09 27.2 92km 159dq 09 16.4 98km 153dg 09 25.3 153km 132dq 2mu O.2sec 09 44.5 153km 132dq 1978NOVI32025 *WES 20 25 03 D6A epg 20 fJ6A eSg 20 D3A ePq 20 AGM ePg 20 PQ,NORIHEAST OF PICARD 41.6N o9.5W OR 0.16 25 .11.6 1j3km 180dg 25 18.2 53km 180dg 25 12.8 S9km 155dg 25 13.4 65km I 46dg 1978NOV15 0931 *LDO 09 31 56 APH ePq 09 APH eSq 09 CRaG ePg 09 CRaG eSg 09 IVI eSq 09 MDV eSg 09 MARL epq 09 Wt~Y eSg 09 CLIN epg 09 CLIN eSg 09 BVT eSg 09 DAl~Y eSg 09 HNH eSg 09 MPVT eS* 09 NY,NOR1~HOF JOHNSTOWN 43.2N 74.5V4 OR 0.4 32 07.3 76km 3dg 32 17.1 76km 3dg 32 12.3 109km 320dg 32 25.4 109km 320dg 32 30.4 127km 71dg 2mu O.2sec 32 34.9 144km 49dg 32 18.1 146km 104dg 32 36.3 147km 22dg 32 19.9 154km 158dg 32 37.2 1~4km 158dg 32 38.3 160km 82dg 8mu O.2sec 32 46.3 187km 17dg 32 47.3 1Y2km 71dg 9mu O.2sec 32 51.5 199km 51dQ 109 49 1.9 .6Mn 2.QI'.\c .96Mc .64Mn 45 .8Mc .77Mc 2.29Mn 2.04Mc 2.2tMn .85Mc 2.3QMn .87Mc TABLE 5 (Continued) 1978NOV152251 Page *WES 22 51 27 D6A epq 22 D6A eSq 22 D3A ePQ 22 AGIA ePg 22 u5A eSq 22 CBM eP* 22 CBM eSn 22 PQ.SOU'fHEAST OF RIVIERE iJU LOUP 47.8N 69.4W OR 0.53 116 21 51 39.4 79km 185dg 51 50.4 19km 185dg 51 40.0 81km 168dg 51 41.6 84km 160dg 51 51.9 88km 173dg 51 49.4 136km I 34dg 4mu 0.2sec 52 05.9 136km I 34dg 19781\jOV26 1338 *y4ES 13 38 21 PQ,SOUJ.'H OF LA POCATIER~ 41.3N 10.IW OR 0.28 06A D6A D2A epq eSg ePg 133830.5 13 38 36.5 13 38 33.7 AGM eSq 13 38 46.5 AGM ePg 13 38 35.5 53km 118dg 53km IIBdg 76km 105dg U.7km 87km 40 58 3 of 13.9 1.6Mn 2.0Mc . 1 96,\{c 1.64Mn 24 IO1dq 101dg D2A D6A D6A ePg epq eSg AGM ePg CBM CBM PQ,RIVIERE DU LOUP 41.9N 69.5W OR 0.31 21 27 05.8 86km 161dg 21 21 05.6 86km 119dg 21 26 51 eP* eS* 21 21 .16.7 2127 07.1 2127 16.0 21 21 32.9 86km 95km 148km 148km 179dg I 51dg 134dg 134dQ 1.9"\c; I.77Mc; 1.91Mc 1978DEC222126 *WES 3 118 f.9 5mu O.2sec 12.0 1.92Mn DISTRIBUTION tic Re c i.Q1.aD..t 30 Dr. Jerry Branch, Harbour, Nuclear 30 Dr. Paul Pomeroy, New York State Coordinator NEUSSN Geologist and 5 Dr. M. t~afi "rOKSOZ, tAassachusetts Technology Institute of 5 Dr. Yash P. Observatory Aagarwal, s Or. Shelton University S. 5 Dr. 5 Earth Consolidated Weston Lamont-uoherty Alexander, Ken ~oodruff, Physics Chief. Site Safety Research Regulatory Commission Edison Observatory Pennsylvania State Geological Survey Delaware Branch, Canada of New York Library File N Dr. E.F. Boston Chlburis, College Weston Geological Observatory,