ABSTRACT

This report is the eleventh Guarterl~ bulletin at0 seismicit\:l in the northeastern United States and covers

peripd April June 1978. Included are ~eo~raphic maps of

the seismic station locations, the epicenters for

OIJarter, and the cumulativ.e epicenters tor t.be eleven

GI.la rte rs . Also included are tables ot the location of the

statiorls operatins durins this" Quarter and of arrival times,

amplitudes, and periods toY' the eleventh Guarterl~

epicenters.

ACKNOWLEDGEMENTS

Partial full support from various agencies for theor

. operation 0" the s. isNo rtheas te rr. u. Seis".ic Networl-..

.rat.efull~ .cknowled~ed. The a.encies providirl~ support'to

members of NEUSSN are as follows:

NIJclear Site Safet~The ReSulatorl:l CO".". i ss i on

Research Branch.

The GeoloSical Office ofUnited States Surve~

EarthQuake Studies,

The National Science Foundation - G.oph~sics Pro~ram,

The New York State and Resources. Deve 1 op".entEner~~

Authority, and

The New Yor~, State Science Service

were supplied to NEUSSN b~ the Weston GeophysicalData

Co"~. of Westboro. HA and is hereb~ acknowl.d~ed

Data from the Seismic Network operated bw the

Consolidated Edison COIfIPanl=l of New York were provided to

the receipt of these data is .-rat.efull'.:lNEUSSN and

acl-..now 1 edsed .

In addi t.ion t.o t.he above operat.ional support.,' eouipmer.t.

otwas also provided b~ the Ottice ot Environmerltal Geology

the U.S. Geolo.ical SurYe~ to members of NEUSSN.

The Advanced Rese.rch Projects ASenc~ of the Depart"ler.t

o~ De~ense provided a number of ..ophones and amplifiers to

dll members of NEUSSN.

INTRODUCTION

This report the eleventh ~uarterl~is bl..flletin Qt

seismicit~ in the northeastern United States 'for the period

April June 1978. The or~anizatiorls datasupplwins

this bulletin West-or. Observator!:lare of Boston Colle~e,

1._smortt-Doherty Geolo.ical Observator\;l of Co 1 1.llTIb i a

UniversitWf and Massachusetts Irlsti tute of Techr:-.olosw.

Additional data for earthQuakes in southeastern ,New York and

northern New Jerse~ were supplied b~ the Consolidated Edisorl

Indiarl Point Net~ork. Weston Geoph~sical Corporation

supplied arrival time data 10r ev.nt in centralan

HampshiY"e. Epicentral data for some of the events in Canada

the Uni'te:dnear States border were supplied b~ the Earth

Ph'=lsics Branch, Department of Eners'=l, Mirles and ResolJrces,

Carlada.

Ten stationsseismic operatin~ durin~ this reporting

bulletin.period were not listed in the previous The

additional st.at.ions are: BPM(ME), DVT(VT), HKH(HE>,

..JKM.(ME), lNX(MA), GHTN(NJ), CLIN(NY), WPNY(NY), GTD(DE),

BBD(DE). Table t is list b~ statea of the station$

operatins durins the period April - JI.Jne 1978. The 'format o'f

the irl~ormation included in Table I is as tollows:

1. Three four letter01' station code, registered

with the National Earthouake Irl~ormat,iorl Cent.r of the u.s.Geolo~ical Surve,=, except as noted b\:l an asterisl<. followirls

.

F' age 2

the operator code).

2. Station latitude. desrees-lTlirll.Jtes-$econds, north.

3. Stat i on 1 ons i tude, des rees-m i rllJtes-seconds, west.

4. Station elevation, meters.

5. Geographic rlalr,e of station.

6. Network operator responsible for station.

Fisure1 is a Seosraphic map of the Northeastern u.s.('" .,:) e :L S ITI J. C Netwo "I<. (NEUSSN). In New Yor".. there are three:

regions of cover~ge having clusters of stations too dense to

reF'T'eserlt separatelw: Attica in the west, near Bluenear

MolJntain lake irl thE! north, and the stations of the Indian

Point r,uclear facilit~ the southeast. Similarl~, thein

seven-station qrra'd in northern Maine Dicke" toonear is

~lQ$ely spaced to be clearl~ represen~ed.

NORTHEASTERN U.S. SEISMICITY

the period ~over.dDu1'in. by this bulletin, ti fteerJ

earth()ua~.es were detected arid located the nort.heast.ernirl

United States off the coast. In addition,01'~ th i rteer.

epicenterearthGIJak.es occurred in Carlada havin~ withir.an

100 k.ilometers of the U.S. Border. Fi~ure 2 is a seismicit~

fTlelP for t.he Guitrt.r April ,j I.J rl Ii? 1978. 3Fj.slJre is a

(~I..I""..IJ.ative seismicit\:l ",ap Qf the nort.heast Unit.ed St.at~s for

~tl~ 33 ",or..th period October 197'- June 1978. In both

figures, tho~e .o,rthauakes that wer~ felt are shllwr. irl red.

3

Table II is a chronolosical list ot the epicenters in FiSure

2 with the followins format:

Dater geographic of' th.e event, and feltname

data

2. The source of epicenter determination:

LDO-Lamor.t-Doherty 'Geolo~ical Observatory,

WES-Wes~on ObserYa~orY,

EPB-Earth Phwsics. Branch, Dept. ot Ener~~, Mines

and Resources. Canada.

3. Ori~irl time of the event, hours-minutes-seconds,

UTe.

-4 Event latitude, deSrees north.

5. Ev.nt lon.itude. de~rees west.

of the6. Root-mean-souare least-sQuareserror

solution in seconds

7. Event depth, kilometers. Depths of 0 kilometers

inin the United States and 0 or 18 kilometers Canada are

restrained values.

8. Everlt masr,i tudes. Ma~nitlJdes are co..puted usin.cJ

Nu~~li's rela~ion (Hn) and a coda duration relation

developed at the Weston Observatory.

For ~he even~s ~ha~ have epicen~ers de~ermined b~ more

than one member orSanization, a second location is sometinles

listed. Wherl than one epicenter line is listed, themore

f rst listed is preferred

Pa~e 4

EARTHQUAKE DATA

The station arrival times and amplitudes used

epicenter and masnitlJde calculations are listed in Table

III, as well as the epicenter lines for each event alT'ead~

Table II. The format for the_iven additionalirl

ir.formation in Table III is as follows:

1. Station code.

2. Emergent (~) or impulsive (i), followed b~ phase

t~pe: p, p~, p*, Pn, S, S~ , S*', 0 r Sn. If the phase is

ilTlPIJlsive, direction of first motion is also incllJded when

the s~stem polarit~ is known: compression (c) or dilatation

(d) .3. Station arrival time, hoIJr-minute-second UTC.

4. Epicentral distance, k.ilometers.

5. Azimu~h ~o ~he s~a~ion, de~rees.

ot6. Peak-to-pea".. sround motion, in ITli 11 ilTlicrons,

the rrla~.{ i mlJm envelope amplitlJde of the vertical-component

signal (surfa~e wave). All reported am~ 1 i tlJdes have

corrected for s~stem response.

7. Period, in seconds, of the wave from which the

alTIP 1 i tude was R,easu red

8. NIJttli maSnitude as computed from the alTlF-l itlJde,

period and distance CMn).

9. Coda duration magnitude theusing relation:

tic =: 2.23 Lo~(D) + 0.12 Lo~(k) -2.36. where D theis

duration in secorlds and k is the epicentral distance irl

Page 5

k.ilometers

MICRO-EARTHQUAKES

In addition to the 28 earthoua~.es listed in Tables II

and III, there 29 foreshock.s,are afte rshock. s arId

micro-eartnoual<.es listed in Table IV. Host of these events

occurred Monroe, Maine;near near the Blue Mountain La~.e

res ion in New Yorl<.; and near Attica, New 'York

SUSPECTED AND POORLY LOCATED EARTHQUAKES

Jr. addition to the earthoua~.es listed in Tables II,

!XI, and IV, ei~ht event$ were detected which could not be

definitel\=' identified being eart.houakes did not.as or

provide sufficient rllJmbe r of arrivals toa allow an

acceptable complJter solution. Events in this class are

Table III.listed in Table V, which has the same format as

North Latitude, degrees

II)QIQI~~QI

'0

Q)

-g~~~d

.3

~II)Q)

~

Figure 1. Seismic stations operating during the period

April - June 1978

North Latitude. degrees

0mv

0, V

0wv

0VV

0

0q-

0&nV

0'"V

0mf(')

0rt)V

0a)r<)

0

'ct'

0

Vto

0<D<D

0(J)to

00r--

U)QJQJ~110QJ

~

.QJ

]~

110d

.9

~U)QJ

~

0Nr--

0

vr--

0<D,

0

m~

00CX)

Fiaure 2. Earthquake epicenters during the period

April - June 1978

North Latitude, degrees

0CX)

V

00v

0

VV

00)~

0

a)IW"\

0l"-V

0toV

0inV

0J()V

0C\JV

0

V

0VW

0<D<D

0<X)CD

(/)Q)Q),...00Q)

"t1

~Q)

"t1='.uorof00d

.3

.u(/)Q)

:3

0

0r--

0

C\Jr--

0

V,

0

<Dr-

0

~I

01CD

Figure 3. Earthquake epicenters during the period

October 1975 - June 1978

TABLE I

LIST. OF OPERATING SEISMIC STATIONS BY STATE.APRIL - JUNE 1978

Sf AID

LATITUDE LONGITUDE ELEVATIONDGMN SEC DGMN SEC. METERS OPERATOR

C,ONNECTICUT

BCTECTHDHNSCUCT

412936.0N 7323 1.9W4150 4.7N 732440.8W4129 8.7N 723123.6W412850.7N 7151 5.7W414,?54.0N 7215 2.0W

69342

24110'149

BROOKFIELD,CTELLSWORTH,CTHADDAM,CTN STONINGTON,CTSTORRS,CT

WESWESWESWESWES

DELAWARE

BBDGTDNED

392046.0N 754036.0W384429.0N 752452.0W394215.2N 754229.5W

181546

BLACKBIRD,DEGEORGETOWN,DENEWARK,DE

DGSDGSDGS

MAINE

AGMBPMCBMD1AD2AD3AD4AD5AD6AEMMHKMJKMMIMTRM

47 454.0N 69 124.0W443754.0N 684721.6W465557.0N 68 714.8W47 330.8N 69 556.2W47 749.3N 69 98.8W47 515.2N 6910 7.4W471117.2N 691636.1W47 040.7N 691554.0W47 520.4N 692944.5W444421.0N 672922.0W443923.0N 693826.9W453919.~N 701433.4W451437.0N 69 225.0W441534.9N 701518.3W

24080

250304402259490365430

2079

378140113

ALLAGASH,ME WESBUCKSPORT,ME WESCARIBOU,ME WESDICKEY,ME WESDICKEY(KELLY MTN),ME WESDICKEY(CARTER BROOK),ME WESDICKEY(ROCKY MTN),ME WESDICKEY(~ROWNS BROOK),ME WESDICKEY(TWO MILE STREAM), WESEAST MACHIAS,ME WESHINCKLEY,ME WESJACKMAN,ME WESMILO,ME WESTURNER,ME - WES

MASSACHUSETTS

DUXFLRGLOHRVLNXQUAWESWFM

42 4 7.0N 7046 4.0W414260.0N 71 717.5W423825.0N 704338.0W423023.0N 713330.0W422020.0N 731620.6W422723.8N 722225.8W4223 4'.9N 711919.5W423638.0N 712926.0W

HITWESHITHITWESWESWESHIT

DUXBURY,MAFAll RIVER,MAGLOUCESTER,MAHARVARD,MALENOX,MAQUABBIN ,MAWESTON,MAWESTFORD.MA

TABLE I CaNT. PAGE 2 OF 3

NEW'HAMPSHIRE

BNH 443526.1N 711523.0WCSNH 434857.6N 712743.2WDNH 43 721.0N 705341.2WGHNH 435212.0N 71 78.4WHNH 434219.0N 7217 8.0WLANH 433527.6N 712924.0WMBNH 434337.2N 711919.2WONH 431645.0N 713019.9WPNH 43 343.0N 72 8 8.9WWBNH 433614.4N 71 556.4WWNH 4352 6.0N 712359.0W

472200

24200180200200280659200220

BERLIN,NHCENTER SANDWICH,NHDURHAH,NHGOE HILL,NHHANOVER,NHLACONIA,NHHOULTONBOROUGH,NHOAKHILL,NHPITCHER HTN,NHWOLFEBORO,NHWHITEFACE,NH

WESWGEMITWGEWESWGEWGEMITMITWGEMIT

NEW JERSEY

GHTN 405257.0N 7411 4.2W 165GPD 41 1 3.6N 742739.0W 360LVNJ 404834.2N 7445 5.4W 201OGD 41 4 O.ON 743659.9W -363paN 41 026.3N 75 59.0W 229PRIN 4022 0.6N 7443 4.2W 110TA9N 395151.0N 743946.2W 30

GARRET MOUNTAIN,NJGREEN POND,NJLONG VALLEY,NJOGDENSBURG,NJPAHAQUARRY,NJPRINCETON,NJTABERNACLE,NJ

LDOLDOLDOLDOLDOLDOLDO

NEW YORK

ALF 421331.2N 774749.7WALX 441921.0N 755540.8WAPH 435028.7N 742949.1WBGR 444943.8N 742227.0WBLH 411946.9N 735718.0WBHL 4352 4.8N 7424 7.2WCLIN 415230.0N 735056.4WCLY 4351 4.7N 742656.4WCRaG 435418.0N 752445.0WCTR 435226.9N 742735.9WDANY 444530.0N 7350 8.4WDBH 411739.9N 735829.9WDNY 425010.7N 7810 7.7WDPL 411510.0N 735439.0WDWN 424923.4N 7846 1.8WEGN 435134.6N 742854.6WGOB 411946.0N 735519.0WGSC 411558.0N 74 014.0WHNY 424954.6N 753053.4WIPS 4116 2.0N 735654.0WAHNH 404651.0N 735825.8WHSNY 445954.0N 745143.2WOCN 4353 5.4N 743145.6WOSB 412137.0N 735525.9WPAL 41 015.0N 735432.9WPNY 4450 2.9N 733317.9WPTN 443420.9N 745858.1WSANY 431025.8N 785213.2WSNP 411427.0N 735816.0WSPS 4118 6.9N 735326.0WSRH 411342.0N 74 050.0WSTL 411119.0N 74 012.9W

671122564329134305168579244585507

27381

670

549150110500

00

55701212

9117723817230

168165125

lDOlDOlDOlDOCON*lDOlDOlDOlDOlDOlDOCON*lDOCON*lDOlDOCON*CON*lDOCON*lDOlDOlDOCON*lDOlDOlDOlDOCON*CON*CON*CON*

ALFRED,NYALEXANDER BAY,NYAIRPORT HANGAR,NYBANGOR,NYBLUH,NYBLUE HOUNTAIN LAKE,NYCLINTON,NYCRYSTAL LAKE,NYCROGHAN,NYCASTLE ROCK,NYDANNEHORA,NYDUNDERBURG HTN,NYDERSAH,NYDELLI PAOLI,NYDOWNHOLE,NYEAGLES NEST,NYGOBBELET,NYGIRL SCOUT CAHP,NYHAHILTON,NY

MANHATTAN,NYHASSENA,NYOVER CASTLE ROCK,NYOSBORN,NYPALISADES,NYPLATTSBURG,NYPOTSDAM,NYSANBORN,NYSTONEY PT,NYST PETERS SCHOOL,NYSCHERMAN,NYSTILES,NY

TABLE I CONT. PAGE 3 OF 3

TBR 41 829.9N 741319.9WUWL 435016.2N 743236.0WWGL 412132.0N 735357.9WWND 422015.0N 74 99.0WWNY 442327.5N 735134.2WWPNY 414810.8N 735814.4WWF'R 411516. 7N 7335 8. 3WWVLY 422815.0N 7834 6.0W

261561152602598

76152600

TABLE ROCK,NYUTOWANA LAKE,NY -

WEGEL,NYWINDHAH,NYWILHINGTON,NYWESTPARK,NYWARD POUND RIDGE,NYWEST VALLEY,NY

LDOLDOCON*LDOLDOLDOLDOLrJO

PENNSYLVANIA

BVRERIHVlPHISCP

4042 O.ON 801960.QW42 760.0N 795859.9W395957.0N 7621 2.0W40 659.9N 75 760.0W404742.0N 775153.9W

0000

352

PSUPSUHSCPSUPSU

BEAVER,PAERIE,PAHIllERSVIllE,PAABINGTON,PASTATE COllEGE,PA

RHODE ISLAND

VERMONT

COV 443439.6N 73 845.0WDVT 445743.2N 721015.2WFLET 444322.0N 7257 6.0WMARL 425018.0N 7248 3.0WMDV 435956.9N 731052.1WMGVT 445449.0N 723740.0WMPVT 441642.0N 723624.0W

COLCHESTER,VTDERBY,VTFLETCHER,VTHARLBORO,VTHIDDLEBURY,VTHONTGOHERY,VTHONTPEL I ER", VT

LDOWESLDOLDOLDOLDOLDO

* STATION CODES NOT ALL CLEARED THROUGH NEIC

OPERATOR CODE

CON - CONSOLIDATED EDISON,INDIAN POINT,NYDGS - DELAWARE GEOLOGICAL SURVEY'LDO - LAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIVERSITYMIT - MASSACHUSETTS INSTITUTE OF TECHNOLOGYMSC -. MILLERSVILLE STATE COLLEGEPSU - PENNSYLVANIA STATE UNIVERSITYWES - WESTON.OBSERVATORY,BOSTON COLLEGEWGE - WESTON GEOPHYSICAL ENGINEERS, INC.

TABLE II

EPICENTER LISTNORTHEASTERN UNITED STATES

AND ADJACENT REGIONSAPRIL - JUNE 1978

SOURCE H-TIME(UTC) LATITUDE LONGITUDEHR tiN SEC, DEG DEG

RHS DEPTH MAGNITUDENUTTlI CODA

03 APR 78 OFF SANDY HOOK. NEW JERSEY*WES 23 57 58.0 40. 53N 74'. 08W O.30sec Ok.m 2.0Hn 1.8Hc

05 APR 78 NEWCOMB, NEW YORK*LDO 14 45 49.5 43.85N 74.24W O.O8sec llk.1TI 2.6Mn 2.3Hc

07 APR 78 RIVIERE DU LOUP, QUEBEC*WES 06 07 32.5 47.84N 69.58W O.O9sec 0 \1:. m 2.1Mn 1.7Mc

07 APR 78 SOUTH OF TADOUSSAC, QUEBEC*WES 22 44 17.8 48.00N 69.65W O.O3sec Ojl;.1TI 1.7Hc

08 APR 78 ST. SIMEON, QUEBEC*WES 08 21 44.5 47.76N 69.85W Ok.1T1 3.0Mn 2.5McO.14sec

08 APR 78 ST. SIMEON, QUEBEC*WES 09 59 40.5 47.75N 69.86W O.25sec O~.ITI 2.1Hn 2.1t1c

11 APR 78 SOUTH OF TADOUSSAC, QUEBEC*WES 23 02 15.2 47.99N 69.71W O.58sec Ok.1T! 2.1Hn 2.0Hc

14 APR 78 MONROE, MAINE*WES 16 13 33.5 44.65N 69.04W O.54sec 0 \<.ITI 1.8Mn 1.SHc

18 APR 78 TADOUSSAC, QUEBEC*WES 23 06 52.9 48.14N 69.70W O.15sec Ok. IT. 2.4Mn 2.0Hc

26 APR 78 BLOCK ISLAND SOUND, RHODE ISLAND*WES 09 34 18.9 41.35N 71.61W 0.02sec 1.7Mn 1.5McO\l;.1T1

27 APR 78lA MALBAIE, QUEBEC*WES 19 55 54.7 47.76N 70.21W O.31sec Ok.m 2.0Mn 1.9Mc

27 APR 78 SOUTHEAST OF TADOUSSAC, QUEBEC*WES 23 01 07.9 48.01N 69.51W 0.68$ec Ok.ITI 2.0Mn . 7H(~

28 APR 78 PASSAMAQUODDY BAY*WES 13 27 23.2 4S.13N 67.02W Ojl;.1TI 1.5Hn .4McO.25sec

29 APR 78 LA MALBAIE, QUEBEC*WES 00 31 29.6 47.57N 70.09W O.10sec 0 11:. ITI 1 .8Mrl 2.2Hc

TABLE II,CONT. PAGE 2 OF 2

SOURCE H-TIHE(UTC) LATITUDE LONGITUDEHR HN SEC DEG DEG

RMS DEPTH MAGNITUDENUTTLI CODA

30 APR 78 LA MALBAIE, QUEBEC*WES 15 00 40.8 47.62N 69.90W O.21sec 01-=.1T1 2.1Mn 1.5Mc

01 MAY 78 LA MALBAIE, QUEBEC*WES 15 29 49.5 47.71N 70.09W O.20sec Ofi;.1TI 2.0Mn 1.9Mc

02 MAY 78 ST. SIMEON, QUEBEC*WES 22 32 13.7 47.89N O.30sec Oi';.m 2.3t1n 1.6Hc70.02W

09 HAY 78 OLD FORGE, NEW YORK*LDO 12 06 52.1 43.82N 75.09W O.28sec 0 jI;. ITI 2.3Mn

13 MAY 78 WEST OF ATTICA, NEW YORK*LDO 21 55 42.3 42.78N 78.26W 2.8MnO.22sec 16"..m

13 MAY 78 WEST OF ATTICA, NEW YORK*LDO 22 08 34.5 42.76N 78.30W O.24sec 6 !J:. ITI 2.6Mn

16 MAY 78 lIVERMORE, KAINE*WES 19 40 26.1 44.39N 70.23W O.29sec Ok.1T1 2.5Mrl 2.3Mc

18 MAY 78 BLOOMINGDALE, NEW JERSEY*LDO 01 29 37.9 41.02N 74.34W

FELTO.O7sec 61-;.1TI 1.5Mn

FELT3.1Mn2.8Mn

26 HAY 78 NORTH SHORE ST. LAWRENCE RIVER, QUEBEC*EPB 02 31 39. (0) 47.73N 70.05W 1.2 sec 18~,m*WES 02 31 40.3 47.74N 69.89W 0.35sec Okm

3.1Mc3.1Mc

04 JUN 78 CONTINENTAL SHELF, RHODE ISLAND*WES 23 23 40.4 39.81N 71.67W 0.75sec 2.2McOk.1T1 2.1Mn

16 JUN 78 SPARTA, NEW JERSEY*LDO 04 59 50.6 40.99N 74.57W O.14sec Ok.m

21 JUN 78 LAKE WINNIPESAUKEE, NEW HAMPSHIRE*WES 18 31 10.0 43.66N 71.38W 0.42sec 0 11:. ffi 1.8Mn 1.6Mc

30 JUN 78 BETWEEN MAHWAH AND OAKLAND, NEW JERSEY*LDO 20 1343.6 41.08N 74.20W 0.22sec 5k.m

INT. IV-V2 .9Mrl 2.5Mc

30 JUN 78 BETWEEN MAHWAH AND OAKLAND, NEW JERSEY*LDO 22 39 49.7 41.08N 74.20W 0.10sec 6~.m

b

2.2t1n 1.51'1c

* SOURCEEPB - Earth Physics Branch,Dept.of Ener~y,Mirles,arld Resources CarladaLDO - Lamont-Doherty Geolo~ical Observatory of CollJmbia Urliversit~WES - Weston Observatory - Boston Colle~e

TABLE III

EARTHQUAKE DATA LISTNORTHEASTERN UNITED STATES

AND ADJACENT REGIONSAPRIL - JUNE 1978

03 APR 78 OFF SANDY HOOK, NEW JERSEY*WES 23 57 58.0 40.53N 74.08W

AHNH ePS 23 58 02.5 291-..m 18azPRIN ePs 23 58 07.2 57k.m 252azGPD ePS 23 58 09.1 63k.m 329azGPD eSS 23 58 16.1 63k.m 329azLVNJ ePS 23 58 09.1 65km 299azBCT eP* 23 58 18.1 122k.m 28azBCT eS* 23 58 32.7 122k.m 28azECT ePS 23 58 24.0 155k.m 2.1azECT eSs 23 58 42.5 155k.m 21azUCT ePS 23 58 32.9 211k.", 46azUCT eSS 23 58 58.6 211k.m 46az

O.30sec 011.."1 2.0Mn 1.8t'tc

6mu O.lsec 2.28Mn 1.72Mc

3mlJ O.2sec 1.91Mn 1.82Hc

2mlJ 1.72Mn 1.98HcO.2sec

05 APR 78 NEWCOMB, NEW YORK*LDO 14 45 49.5 43.85N

CLY iPgc 14 45 52.6 17~.mCTR epg 14 45 52.8 18~.mEGN iPgd 14 45 53. 0 20~,mAPH iPgd 14 45 53.1 21~.mWNY epg 14 46 00.0 67~.mMDV epg 14 46 02. 9 87~.mCROG iPgc 14 46 04.0 95~.n,PTN epg 14 46 04.9 100~,mDANY eP* 14 46 05.8 1 06~,nlBGR eP* 14 46 06.3 109~.mCOV eP* 14 46 07.8 119~.mPNY eP* 14 46 08.1 122~.mMPVT eP* 14 46 11.7 139~,mFLET eP* 14 46 11.2 141~.mHNH ePn 14 46 14. 4 158~,mQUA 217~.mECT 234~,RI

74.2222

23

3

11

O.O8sec llJt;.m 2.6Mn 2.3Hc

2.3911c2.2411c

07 APR 78 RIVIERE DU LOUP, QUEBEC*WES 06 07 32.5 47.84N 69.58W

D3A" eP!i 06 07 47.4 90j(.m 160azD3A eS!i 06 07 58.5 90j(.m 160azAGM eP~ 06 07 48. 4 94~."1 154azAGM eS!i 06 07 59.8 941<.m 154az

O.O9sec Ojl;.m 2.1Mn 1.7Mc1.80Mc

5mu O.lsec 2.09Hn 1.62Mc

07 APR 78 SOUTH OF TADOUSSAC, QUEBEC*WES 22 44 17.8 48.00N 69.65W

D3A eP 22 44 37.4 108!t;.m 160azD3A eS 22 44 51.6 108!t;.m 160azAGH eP 22 44 38.2 112k.m 155azD5A eP 22 44 38.4 113!t;.m 165az

O.O3sec 0\1;."1 1.7Hc1.79Hc

1.68Hc

277762772154?..64936

419377944847696553

W

aa

a

aa

a

aa

a

a

a

a

aa

a

aa

zzzzzzzzzzzzzzzzz

PAGE 2 OF 7TABLE III,CONT.

08 APR 78 ST. SIMEON, QUEBEC*WES 08 21 44.5 47.76N

D3A ePs 08 21 59. 9 91~.mD3A eSS 08 22 11.1 91~.mD5A ePs 08 22 00.3 95kmAGM ePS 08 22 00. 8 98~.mAGM eSS 08 22 12.9 98kmCBM ePn 08 22 10.2 160kmCBM eSrl 08 22 28. 7 160~,mMIM ePS 08 22 32.0 287kmM I MeSS 08 23 06. 6 287~,m

2.5Mc2.63Mc

69.85W145az145az152az140az140az125az125az167az167az

01<.111 3.0MnO.14sec

3.20Mn 2.53Mc63nlu O.lsec

2.80Hn 2.42Mc491T1IJ O,3sec

2.89Hn 2.61Hc3Smu O.3sec

08 APR 78 ST. SIMEON, QUEBEC*WES 09 59 40.5 47.75N

D3A eP~ 09 59 55.6 90kmD3A eS~ "10 00 06.8 90kmD5A eP~ 09 59 55.7 941<.1T1AGM eP~ 09 59 57. 1 98~.mAGM eS~ 10 00 08.7 981<.mCBM eP~ 10 00 07.1 1601<.mCBM eS~ 10 00 26.2 1601<.m

O.25sec Oi';.1T1 2.1Hn 2.1Mc2.00Mc

69.86W145az145az151az140az140az124az124az

13mu O.lsec 2.50Mn 2.12Mc

2mu 0.15&C 1.77Mn

11 APR 78 SOUTH OF TADOUSSAC, QUEBEC*WES 23 02 15.2 47.99N 69.71W

D3A eP* 23 02 33.3 1 09~~m 158azD3A eS* 23 02 47.2 1 09~.m 158azAGM eP* 23 02 34. 1 114~.m 153azAGM eS* 23 02 46.8 114km 153azCBM epg 23 02 43.0 168km 134azCBM egg 23 03 03. 8 168~.m 134az

2.0Mc2.06Mc

O.58sec 01<.1T1 2.1Mn

2.04Hc10mlJ O.lsec 2.46t1n

1.66t1n 1.93Hc2mu O.2sec

14 APR 78 MONROE, MAINE*WES 16 13 33.5 44.65N

MIM eP~ 16 13 45.1 66~.mMIM eS~ 16 13 52. 3 66~.mTRM eP* 16 13 51.8 106~,mTRM eS* 16 14 03.5 106~.mE,MM eP* 16 13 54.1 123kmEMM eS* 16 14 08.2 123~,m

1.5Mc1.44Mc

69.04W360az360az246az246az

85az85az

O.54sec4mIJ

OkmO.2sec

1.8Mn1.66Mn

O.4sec 1.68Mn 1.58Mc7mu

2.10Mn 1.61Hc8mu O.2sec

18 APR 78 TADOUSSAC~ QUEBEC*WES 23 06 52.9 48.14N

D3A eP* 23 07 13.2 124~.mD3A eS* 23 07 28. 4 124~."1AGM eF'* 23 07 13.8 129~.mAGM eS* 23 07 29.2 129~.mD5A eP* 23 07 14.2 130~."1CBM eP~ 23 07 22. 8 180~.m

2.0Mc1.97Mc

69.70W161az161az156az156az165az138az

O.15sec 0 I<.ITI 2.4Mn

1.97Hc81T11J O.lsec 2.38Hn

TABI_,E I I I, CONT. F'AGE :3 OF 7

26 AF'F~ 78 BLOCK I SLAND SOUND, RHODE ISLAND*WE~3 09 34 18.9 41.35N 71.61W 0.02sec Ok.1TI 1.7HI-1 j,.'.';iHc~

N~3C el:'g 09 34 23.2 25k.ITI 307az j. . 2::~Hc~NS(~ egg 09 :~4 26.3 25k.ITI 307az

. FL_I~ (~I::'~ 09 34 28.7 58k.1TI 45azUCT eF'~ 09 34 31.6 76k.1TI 316az 5 ITI Ij O. 2sec 1. ~5CtHrl j, .42HclJCT eS~ 09 34 40.9 76k.1T1 3:L6az

- f~(~T el::'g 09 34 45. 4 159'1~.1T1 291 az :31Tllj o. 2sec 1. 72Mr.1 j. .89Mc

27 AF:'F~ 78 I_A HAL_BA:[ F'::, QUEBEC*WES j,9 55 ~.)4.7 47.76N 70.2j,W 0.:3j.se(~ Ok,lTI ':':>;.OHr'l j,.9Hc~

D~5A eF'* j.9 56 12.8 j, 09k.1T1 133az ;~ . OOH(:~I:13A eS* j.9 56 25.6 109k.1T1 133azD5A eF'!:4 :L9 56 13.4 1 j,Ok.ITI 139azAGH eF'rl j,9 ~j6 j.4.7 1j.8k,1T1 130az 9 ITI I," O.j.sec 2.41Mrl j,.Ct:LMc~AGH eS~ 19 ~56 28.8 1 j.8k,1T1 130azCBH eS~ 19 56 47.4 1E!3k.1T1 120"JZ .:.:>; ITI I," 0.2sec 1.69H'-1 j. .88H(:~

H :1: H 294k.1T1 162az 3 ITI Ij 0 . ~5sec j. .77Hrl,

27 AI::'F~ 78 SOlJTHEAST OF TADOUSSAC, QUEBEC*WES 2:3 O:L 07.9 48.01N 69.51W 0.6E!se(~ Ok,lTI 2.0HI-1 :L.7H(:~

D3A el:'* 23 01 25. ;,~ 106k.ITI 166az :L .6 7HcD3A eS* 2~5 O:L 37.7 :L 06k.1T1 166azD3A e~;I-1 23 0 j. 42.1 :L 061~.ITI j.66azAGM eF'* ~~3 O:L 2~i.7 j.j.OI~.ITI 161az 41T1lj O.j,se(~ :~.O:~MI-I :L.7j.Mc~D~5A eF'g 23 OJ. 26.7 :L131~.ITI j.71azI:15A eSg ':':>;:3 OJ,' 40. 5 1131~,ITI j.7j.azCBH el:'~ 23 O:L 34.4 1591~.1TI j,39az

28 AI:'R 7E} F'ASSAHAQUODDY BAY*WES j. 3 ;.~7 ~~3. 2 45. :L :~N 67. O':':>;W O. 25sec 01~.1TI :L . ~3HI"1 :L . 4Mc~E-HH I_".. j -z ". 7 .7 3 0 1:-.71 ')'1 1 '1 3 0 ,... 1 (')I- M j " :. e -::.\ . ,;1.:. ,;). ;:} ~.ITI 0'_,:" a~-:: -'.,. ITllj . ,7,sec .. (:1,) 1'.1 " . o'_OHc~

EHH S,.. 1 '7 " 7 39 I:- ':-.7" '1':>1e::.\ .';1':'. . ;:} ,.) 1'.; ITI .:. 0'.., a zH:[ M ef::'rl j.3 27 48. 4 1591~.1T1 ;~75az 1lTllj 0 . ~~sec 1 .23Hrl j. . 6~5M(:~HJ:M eSg j.3 28 09.0 159k.1T1 275az .

~~9 A~-:'I:;: 78 I_A HALI:fAIE p QUEBI~C*WES 00 ~~j. 29.6 47.57N 70.0CtW 0.10~:;ec 01~.1TI j, .8H'-1 ::,~.2Mc~

D3A eF'g 00 3j. 44. ~.~ 88k,ITI 127(~z ~,~. ;,~4M(:~I I-z A C",.. 00 .7 .L ""I:- '1 881 j "' 7. ,;) e,J::.\ ,;). ;:}~,. -'. . ~,ITI .0'., azD5A el:'~ 00 :31 44. '.';i 88k,ITI j,~5::'jazI II:- A C 00 .7 j 1::."" '1 88 " 1 ..zl:...,;.,.J eJg ,;).. ,.),.).0'.. I'..ITI, ,;)~,a-,.

AGM eF'g 00:3:L 46. 0 9.71~,ITI :L 24az 4 ITI I_I O. j, sec j. . Ct '7 MI-I 2 . ;~,4H(:~~ AGH eSg 00 3 j. 57.8 97k.ITI j,24az

CBM .161:'., j .11:. '7 () r) I L ") M" "".)I'.,ITI ..,.J,,1Z ,;)ITII_I ..:,Se(:~ :..00',,1',

ft 30 AF'R 78 LA HAI_.BAIE, QlJEBEC*WES j.5 00 40.8 47.62N 69.90W 0.2j,sec OI~.ITI .:.~. j.Hrl j, .~7iM(:~

I:13A el:'g j.5 00 54. :.5 E}1k,ITI j.37az j,. ~54M(~

D~5A eS!:4 :L::'j 01 04.0 81k,ITI 1:~7azI:t5A el;:'g j.5 00 54.8 83k.ITI 144azAGH eF'g 1::'j 00 55. ~:,:j !:}9k,1T1 132az ~7jITII_1 O. 1,::;ec 2. 06Hrl :1, .4:'5HcAGH eSs 1~) 01 06.8 89k.ITI j.32az

TABI_E I I I, CONT. F'AGE 4 OF 7

01 MAY 78 L"A MALBAIE, QUEBEC*WES 15 29 49.5 47.71N 70.09W 0.20sec OJl:,ITI 2.0Mrl j, .9Mc

D~~A eF's 15 30 06.2 99J1:,1T1 135az 1, . <77McD~5A eSs 15 30 17.8 99J1:,1T1 135az

. AGM eF'* 15 30 07.4 107J1:,1T1 131az 141T11_1 O.1.sec 2.5'7Mrl 1,.89M(~A(3M eS* 15 30 20.4 107J1:,1T1 131azCBMeF's 1,5 30 1'7.8 173J1:,1T1 120az 2 ITI IJ 0.2sec 1,.~j3MrlCBM eSs 15 30 39.3 1731~,1T1 120az

~

02 MAY 78 ST. S:£MEON, QlJEBEC*WES 22 32 1~~. 7 47 .89N 70. 02W o. ~50sec OJl:,ITI 2. ;3 M "'I :1,. 6Mc

D3A eF'* 22 ;32 31.7 1,10Jl:,ITI 144az 1,.64McD3A eS* 22 32 44.8 :L 1. OI~,1T1 1,44azD5A eF'* 22 32 32. 5 11,31~,1T1 1.49azD5A eS* 22 3:'~ 46.4 113J1:,1T1 1,49azAGM eF'* 22 32 33.2 1,1,7J1:,1T1 140az 61T11_' 0.1,!:..(~<:~ 2.26Mrl 1,.60McAC,M eS* 22 32 47.5 1 1,7J1:,1TI 1,40az

09 MAY 78 OI_D FOF<GI~:, NEW YORK*1,_1:10 :L 2 06 52. j, 43. 82N 7::'i. 09W 0 .28sec OJl:,ITI ~,~ . ~5MI"1

("I::' ()G ' I::"" 1 '1 06 ~ 6 r) '") 8 1. '190 "Y

JI'\ , E, ~ ,-" ;;J, . -" -" .."ITI "'- 8"'-

(:ROG eSs 12 06 59.4 28J1:,1T1 290azAF'H e~';'s j,2 06 59.7 48J1:,1T1 87 azAF'I-I eSs 1,2 07 O::'j. 9 48 JI:, ITI 87azE(3N eF's 12 06 5('/-,. 9 491~,1T1 858ZE=~(3N (~Ss :L 2 07 06.:;'~ 49J1:,1T1 8~ja~~(:TI:;: el::'!,~ 1,2 0'7 00.4 51J1:,1T1 83az(:TI:;: eSs 12 0'7 06.9 51J1:,1T1 83azCL Y eF's 12 0'7 00. 3 521~;1T1 86a::'~

1,3 MAY 78 WE=~ST OF ATTICA, NEW YORK*L_I:'O 21, 55 42.;3 42.78N 78.26W 0.22se(~ j,61~,'TI :;~.8M"'1

DNY eF' 2:1, 55 45.4 1,OJl:,ITI 50azI:INY eS 21 55 48.1, 10Jl:,ITI 50azWVI..,Y eF's 21 55 50.2 43J1:,1T1 21,'7az<"ANY F';' '") 1 1::-1::' ~ 4 "~ 66 1. 31 ':) ,) e s .."" ,.);;J ;;J .~") ,.."ITI ,-"az

13 MAY '78 WEST OF' ATTICA, NE:~W Y()RK*LDO 22 08 ;34.5 42. 76N 78. 30W o. 24sec 61~.ITI ~~. 6Mrl

I:'NY eF's ~~2 08 36.8 :1, 4J1:,1T1 5:~az[ INY (" '")" 08 "~9 6 oj4 1. c'"

e,JS ..".." ,,;). ,I, .."ITI ",-"az

WVI_, Y eF's 2:'~ 08 41.6 39 JI:, ITI 21,5azSANY F" '")'") 08 4 1::' '7 L C'I. 31 C' "." e's ..,,",- ~'.' <;);;J.."ITI ""a."

.. SANY eSs ::,~:.~ Ot3 ~j4. 3 65 JI:, ITI :~1,5a~~

.

TABLE III,CONT. PAGE 5 OF 7

16 MAY 78 LIVERMORE, MAINE*WES 19 40 26~1 44.39N

TRM eP~ 19 40 28.3 14~,mBNH eP~ 19 40 40.5 85k.RIBNH eS~ 19 40 50.4 85k.mGHNH eP~ 19 40 41.5 92k.mWNH eP* 19 40 44.5 110~.mWBNH eP* 19 40 44.4 112k.mHBNH eP* 19 40 45.2 114~,mCSNH eP* 19 40 45.9 117~.mMIM eP* 19 40 48.4 134k.mMIM eS* 19 41 03.9 134~,mLANH eP* 19 40 48. 2 .134~.mDNH eP* 19 40 50.6 150~.RIONH ePn 19 40 52.1 160~.mHNH eP~ . 19 40 55.7 182k.RI

EMM eP~ 19 41 02.4 221k.mWES eF'~ 19 41 05.6 240~.m

70.23W189az286az2868Z232az239az219az231az238az

44az44az

229az201az220az246az

79az202az

O.29sec 0 I<.ITI 2.5Mn 2.3Mc1.88Mc2.27Mc

2.44Mc

18mu13mu

O.3secO.2sec

2.50Mn2.45Mn

2.42Hc'2.32Hc

18 MAY 78 BLOOMINGDALE, NEW JERSEY*LDO 01 29 37.9 41.02N 74.34W

GPD eP 01 29 39.9 10km 269azGPD eS 01 29 41.3 10km 269azTBR eP~ 01 29 40.7 1711:.m 36azTBR eS~ 01 29 42.8 1711:.m 36azSRM eP~ 01 29 43.8 3611:.m 50azSRM eS~ 01 29 48.1 3611:.m 50azGSC eP~ 01 29 44.4 3911:.m 46azLVNJ eP~ 01 29 44.9 42~.m 236azLVNJ eS~ 01 29 50.1 4211:.m 236azDBM eP~ 01 29 45.0 4311:.m 45azDBM eS~ 01 29 50.1 43~,nl 45azOSB eP~ 01 29 46.3 5211:.nl 43azOSB eS~ 01 29 52.4 5211:.m I 43az

FELTO.O7sec 6 1<. ITI 1.5Mn

26 MAY 78 NORTH SHORE ST. LAWRENCE RIVER, QUEBEC*EPB 02 31 39.(0) 47.73N 70.05W 1.2 sec 18km*WES 02 3~ 40.3 47. 74N 69. 89W O. 35sec O~.m

D3A ePs 0231 55.1 98km 137azCBM ePn 02 32 05.8 171km 121az 57mu 0.3secCBM eSn 02 32 25.1 1711-..m 121azEMM ePn 02 32 33.6 3871-..m 148az 19mu O. 4sec

FELT3.1Mn2.8Mn

3.1Hc3.1Hc

3.11Hc3.04Hc2.90Hn

2.62Mn 3.09Mc

04 JUN 78' CONTINENTAL SHELF. RHODE ISLAND*WES 23 23 40.4 39.81N 71.67W 0.75sec

NSC eSs 23 24 33.4 186k.m 355az 16mlJHDM ePs 23 24 13.7 199k.m 339az 6mu .HDM eSs 23 24 38.9 199k.m 339azFLR eSS 23 24 ~2.1 217km 12az 7RIIJUCT eSs 23 2~ 46.8 230k.m 348az 6muBCT eSS 23 24 47. 8 236~,m 323az 4RIIJECT eSs 23 24 56.4 268k.m 327az 4RIIJ

OJl;.mO.4secO.2sec

2.1Mn2.25Mn2.12Mn

2.2t1c2.09t1c2.09t1c

O.2secO.2secO.2secO.2sec

2.13Mn2.17Mn2.02Mn2.14Mn

2.10Mc2.21Mc2.38Mc2.32Mc

TABLE III,CONT. PAGE 6 OF 7

16 JUN 78 SPARTA, NEW JERSEY*LDO 04 59 50.6 40.99N

GPD eP 04 59 51.9 10~,mGPD eS 04 59 53.1 10~,mLVNJ ePS 04 59 54.8 25k.mTBR ePS 04 59 56. 2 34~.mTBR eSs 05 00 00. 1 34~.m

Ok.lT!74.S7W72az72az

217az60az60az

O.14sec

21 JUN 78 LAKE WINNIPESAUKEE, NEW HAMPSHIR~*WES 18 31 10*0 43.66N 71.38W 0.42sec

MBNH eP 18 31 11.2 9 \1;. m 33azLANH eP~ 18 31 12.2 12\1;.m 228azCSNH eP~. 18 31 13.0 18i'..m 339azWNH eP~ 18 31 14.3 23\1;.m 356azGHNH eP~ ' 18 31 15.0 31km 42azONH eP~ 18 31 17.5 44\1;.m 194azHNH eP~ 18 31 22.4 73\1;.m 274azPNH eP~ 18 31.24.8 91\1;.m 223azBNH eP~ 18 31 28.1 104i'..m 5az 6muBNH eS~ 18 31 39.4 1 04 \1;. m 5azTRM eP* 18 31 28.7 112\1;.m 53az 8mlJJKM ePn 18 31 46.0 239~..m 22az

1.6t1cOJ(,1TI 1.8Mn

1.44Hc

O.3sec 1.69Hn 1.76Hc

O.2sec 1.94Hn 1.61Hc

INT. IV-V2.9Hn 2.5Mc

30 JUN 78 BETWEEN HAHWAH AND OAKLAND, NEW JERSEY*LDO 20 13 43.641.08N 74.20W 0.22sec 5kmTBR eP . 20 13 45.1 7~.m 345az

CHR iP~d 20 13 46.7 1411:,m 353azSRH iP~d 20 13 47 t 4 23~.m 43azGPD eP~ 20 13 47.2 2311:,m 253azWPR eP~ 20 13 52.4 5511:,m 69azLVNJ eP~ 20 13 52.3 5511:,m 237azPQN eP~ 20 13 55. 4 75~~m 264azBCT eP~ 20 13 56.7 82km 56az 52mu 0.3secCLIN eP~ 20 13 58.4 9311:,m 18azECT eP* 20 14 00.5 107\t;.m 38az 64mu O. 2s:ecHDH eP* 20 14 07.0 148km 72az 63mu 0.2$ecLNX ePn 20 14 09.3 160~.m 29az .

UCT ePn 20 14 12.5 183km 62az 38mu 0.1secNSC ePn 20 14 13.7 202~~m 77az 50mu 0.2secQUA ePn 20 14 15. 6 216~~m 44azFLR 267~~m 74az 13mu 0.1secWES 2801l:,m 58az 12mu 0 . 2secONH ePn 20 14 30.7 33111:.m 41azHNH 33211:,m 28az '14mu 0 .2sec

2.52Hc2.50Hn

2.94Hn3.06Hn

2.51Mc2.51Mc

3.22Mn3.0BMn

2.52Mc2.57Mc2.46Mc

2.89Mn2.58Mn

2.72t1n 2.51M~

TABLE III,CONT. PAGE 7 OF 7

2.2Mn 1.5Mc30 JUN 78 BETWEEN HAHWAH AND OAKLAND, NEW JERSEY*LDO 22 39 49.7 41.08N 74.20W 0.10sec 6km

TBR eP 22 39 51. 3 7~.m 345azCHR iPSd 22 39 53.0 14~.m 353azGPD "ePs 22 39 53.5 23km 253azOSB iPSc 22 39 56. 0 39~.m 37azWPR ePs 22 39" 58.7 55~.m 69azLVNJ ePs 22 39 58.6 55~.m 237azpaN ePs 22 40 01.7 75k.m 264azBCT ePS 22 . 40 02.7 82k.m 56az 21 mu 0 .2secECT eP* ' 22 40 07.2 107~.m 38az 10mu 0.2sec

LNX 160~.m 29az 6mu O.lsecUCT 183km 62az 3mu 0.2secNSC 202k.m 77az 4mu O.lsec

2.35Hn2.13Hn2.34Hn1.88Hn2.31Hn

1.48t1c1.51t1c

* SOURCEEPB - Earth Ph~sics Branch,Dept.of Ener~~,Hines,arld ResolJrces CanadaLDO - Lamont-Dohert~ Geolo~ical Observator~ of Columbia Universit~WES.- Weston Observator~ - Boston Colle~e

TABLE IV

FORESHOCKS, AFTERSHOCKS, AND MICRO-EARTHQUAKES

DATE ARRIVAL-TIME STATION MAGNITUDE LOCATION

08 APR11 APR11 APR11 APR14 APR14 APR14 APR14 APR14 APR14 APR14 APR14 APR14 APR14 APR16 APR16 APR17 APR20 APR17 HAY19 HAY21 HAY28 MAY28 HAY01 JUN01 JUN19 JUN26 JUN30 JUN30 JUN

103757.064108.064134.0839145115211525154015471601160219311942214406220631191326.165320.16190352130010141115190419130700185020142015

LVNJDNYDNYDNY505*505*505*505*505*505*505*505*505.505*CLYCLYLVNJLVNJGPDGPD.APHAPHDNYAPHAPHPTNAPHTBRTBR

<<<<<<<<<<<<<<<<<"<<<<<<<<<<<<

NEAR LONG VAL~EY, NJATTICA, NYATTICA, NYATTICA, NYMONROE, MEMONROE, MEMONROE, MEMONROE, MEMONROE, MEMONROE, MEMONROE, MEMONROE, MEMONROE, MEMONROE, MEBLUE MOUNTAXN LAKE, NYBLUE MOUNTAIN LAKE, NYSCHOOLEY MOUNTAIN, NJSCHOOLEY MOUNTAIN, NJBLOOMINGDALE, NJBLOOMINGDALE, NJBLUE MOUNTA:J:N LAKE, NYBLUE MOUNTAIN LAKE, NYATTICA, NYBLUE MOUNTAIN LAKE, NYBLUE MOUNTAIN L"AKE, NYSOUTH OF POTSDAM, NYBLUE MOUNTAIN LAKE, NYBETWEEN MAHWAH AND OALAND, NJBETWEEN MAHWAH AND OAKLAND, NJ

* - TEMPORARY FIELD.STATION. WESTON OBSERVATORY

11111111111.111111111111111111

TABLE V

SUSPECTED AND POORLY LOCATED EARTHQUAKESNORTHEASTERN UNITED STATES

AND ADJACENT REGIONSAPRIL - JUNE 1978

14 APR 78 LA MALBAIE, QUEBEC*WES 03 43 20.1 47.53N

D3A ePs 03 43 36.7 99"..mD3A eSS 03 43 48. 6 99~.."1AGM eP* 03 43 38.1 109kmAGM eS* 03 43 51.5 109k.m

70.30W120az120az117az117az

O.O9sec Ok. IT! 2.3Mn 1.8Mc1.92Mc

8mu O.lsec 2. 32/"in 1.71Hc

14 APR 78 WEST OF ST. JEAN DE DIEV, QUEBEC*WES 22 14 50.8 47.89N 69.18W 0.07sec

D3A eP 22 15 07. 0 89~,m 180azD3A eS 22 15 18.9 89~,m 180az

OJl;.m 2.1Mn 1.9Hc1.91Hc

AGMAGM

ePeS

911<.m91 "..m

22 15 07.422 15 19.3

173az173az

5mu O.lsec 2.07Hn 1.83Hc

16 APR 78 SOUTH OF POTSDAM, NEW YORK*LDO 06 07 44.4 44.27N 75.40W

CROG ePS 06 07 50.6 41~,m 181azALX ePS 06 07 50.5 43km 278azALX eSS 06 07 57. 3 43~.m 278azPTN ePs 06 07 51. 9 47~,m 45azPTN eSS 06 07 58.2 47~.m 45azCL Y ePS 06 07 58. 5 89~.m 121azCL Y eSS 06 08 09.1 89~.m 121az

O.52sec Ol<.ffi

20 APR 78 NOTRE DAME DES BOIS, QUEBEC*WES 20 44 19.945.47N 7l.00W

BNH eP~ 20 44 37. 7 100~~m 192azBNH eSS 20 44 48.4 lOOk", 192azTRM eP* 20 44 43.4 l47~.m l56azD3A ePn 20 44 54. 1 228~.m 38azAGM ePn 20 44 54.5 235km 4()azPTN ePn 20 45 06. 1 330~~m 254az

O.585ec Okm 2.1Mn 2.5Mc

7mu O.2sec 2.12Hn2.56Hc2.43Hc7mu O.3sec 2.16Mn

26 MAY 78 NEWCOMB, NEW YORK*LDO 07 06 55.1 43.97N, APH eP~ 07 07 00. 7 35~,m

MDV ePS 07 07 06. 6 74~,mMDV eS~ ~7 07 15.4 74~.mPTN eP~ 07 07 10.1 97~.mPNY eP* 07 07 .11.2 1051<.mPNY eS* 07 07 24.3 105k.mCROG eP* 07 07 11.7 1061<.1"MPVT eP* 01 07 15.1 1241<.".

74.10W246az

87az87az

314az24a~24az

267az74az

9.23sec O"..m

TABLE V,CONT. PAGE 2 OF 2

28 MAY 78 LA MALBAIE, QUEBEC*WES 19 15 08.1 47.68N

D3A epg 19 15 23.0 89"..mD3A eSs 19 15 33.9 89kmCBM egg 19 15 54.7 162k.R'

69.95W138az138az120az

Ok.lT. 1.7Mn 2.5Mc

.j 3mlJ O.2S8C 1.72Hn 2.52Mc

08 JUN 78 NEAR NEWCASTLE, ONTARIO*LDO .06 51 03.7 43.92N 78.51W

SANY eP~ 06 51 18.1 88"..m 200azSANY eS~ 06 51 29.1 88"..m 200azDNY eP* 06 51 23.2 124j1;.m 167azDNY eS* 06 51 38.5 124j1;.m 167azCRaG ePn 06 51 40.8 249"..m 89azCRaG eSn 06 52 10.2 249j1;.m 89az

O.42sec

24 JUN 78 SOUTH OF ST. ONESIME, QUEBEC*WES 21 11 39.7 47.31N 70.01W O.54sec

D3A epg 21 11 50.5 69km 111azD3A egg 21 11 59.8 69k.m l11azCBM egg 21 12 23.0 150k.m 106az 3muJKM epg 21 12 11.1 185k.m 186az .2muJKM eSg 21 12 32.6 185~~m 186az

OI~.1TI 1.7Hn 2.2t1c2.22t1c

O.2secO.2sec

1.7BMn1.67Mn 2.08Hc

* SOURCELDO - Lamont-Dohert~ GeoloSical Observator~ of Coluwlbia UniversityWES - Weston Observatory - Boston Collese

DISIRIBUIIC~

Recieieat.

Dr. Jerr~ Harbour, Chief, Si te Safe.l~ ResearchBranch, Nuclear Regulator~ ColTlmission

Dr. Paul Pomero~, New Yor~, State Geologist aridCoordinator NEUSSN

5 Dr. M. Nafi Toksoz. Massachusetts Institute otTechnolog~

'5 Dr. Yash P. Aggarwal, Lanlont-Dohert~ GeologicalObservator~

5 Dr. Shelton S. Alexar,der, Penns~lvania StateUniversit~

5 Dr. Ken Woodruff, Delaware Geolo~ical SurYe~

5 Earth Ph~sics Branch, Canada

3 Director, Diy. of Tech. Ir,fo. and Doc.Control, Nuclear Regulator~ Co"I",ission

1 Consolidated Edison of New York

1 Wes~on Observa~or~ Librar~

1 File

N Dr. E.F. Chiburisp Weston Observator~pBoston Colle~e