NUREG
WES-238-025
Network
Bulletin No. 15
of
April
01, 1979 - June 30.
Compiled
and Edited
E.F.
1979
bw
Chiburis
R.O. Ahner
Depart.ent
Paul
W. Pomerov,
Weston Observatorw
of Geolosw and Geophwsics
Boston Collese
Coordinator
United
States
April
Geolo~ical
Survev
1980
MEMBERS
Weston Observatorw
of Boston College
Massachusetts
Institute
of Technolosw
LaMont-Dohertw
Geolosical
Observatorw
of ColuMbia
Universitw
Pennswlvania
State
Universitw
Delaw~re
Geological
Survew
Maine Geolosical
Survew
State
Universitw
of New York at Stonw Brook
New York
Nuclear
Re~ulator~
Commission
United
States
Geolo~ical
Surve~
National
Science
Foundation
State
Ener~~ and Resources
Development
New Yor~, State
Science
Service
Authorit~
ABSTRACT
This.
report
in
seislaicit,y
April
-
network
the
June
is
the
seis.icitw
tables
all
d.~.
tor
St.at.es.
models
tor
ot
appropriate
durin~
Inaps
period
of
and of
Also
epicenters,
An Appendix
the
the
Ciusrters.
locations,
tor
for
th& Guart.r,
fifteen
the
station
~he ouar~er.
State5
~eo"raphic
and seis.icitw
are
velocitw
are
Included
included
ev.n~
United
of
bulletin
ou~rterl~
fifteenth
northe~5tern
1979.
stations
cu.ulative
the
describes
northeastern
United
Pa~e 2
ACKNOWLEDGMENTS
Partial
or
ot
operation
is
of
Office
of
Science
State
Energ~
from
of
Compan~
are
routinel~
and
station
u.s.
border
o~ Eners~,
In
has
been
of
the
stations
data
soA'le of
provided
to
provided
the
the
b~ the
of
defense
U.S.
New
the
ProSram;
b~ the
Authorit~;
Consolidated
and
the
bw the
above
events
Earth
in
Inc
Epicentral
Canada
Phwsics
near
Branch,
the
Dept.
Ottawa.
operational
Advanced
Research
and by the
Geological
Edison
Research.
NEUSSN when available.
and Resources,
addition
the
Studies;
and Wes~on Geoph~sical
to
are
u.s.
the
Research;
Development
operated
for
Resulat.or~
Service.
provided
Mines
GeoloS~ of
Science
Nuclear
Geoph~sics
to
support
EarthGua",e
and Resources
New York
Dept.
of
Foundation,
New Yor~, State
Data
Safet~
t.he
f'or
Network(NEUSSN)
providing
u.s.
the
Office
aSencies
Seismic
Agencies
Reactor
Surve""
various
U.S.
Northeastern
NEUSSN include
Geological
National
from
ac~,nowled~ed.
Commission,
Yor"',
support
the
~ratefull~
members
the
full
Office
Survew.
support,
Projects
of
eQuipment
Agenc~
Environmental
Pa~e 3
INTRODUCTION
Station
Quarter
are
formats
0"
operations
summarized
the
in
tables
and
seismicit~
three
figures
and five
are
described
a geographic
map of
"or
results
in
tables
the
(the
section
EXPLANATION OF TABLES)
Figure
were
3
is
operational
are
the
1
maps
during
of
cumulative
which
t.hose
the
seismicit~
period
reporting
for
from
the
October
that
earthQuakes
NEUSSN stations
period;
Figures
reporting
period
1975,
were
which
2
and
for
in
respectivel!:l'
felt
are
shown
b~ red
s~mbols
Table
Table
2
reporting
1 is
is
2;
as
5 lists
being
number
of
3
-4
lists
events
that
earthauakes
to
at'
operatins
of
epicenters
durin~
could
or
obtain
stations;
during
station
arrival
and periods
for
foreshoc"..s,
lists
occurrinS
arrivals
list
amplitudes,
Table
microearthGua~,es
Table
Table
azimuths,
Table
list
location
chronological
period;
dist.ances,
in
.
.
the
times,
the
events
afte rshoc,",..s,
reportins
period;
not
be definitel~
identified
~ha~ did
no~ produce
a sufficien~
an acceptable
the
solution.
PaSe 4
SEISMICITY
During
the
ea rthouaf.',es
United
were
States
Ir- i 1 omete
rs
foreshocks,
lists
or
which
included
period
ot
u.s.
than
with
t.he
of
5'
8
earthQuakes
Table
were within
4
100
includes
and microearthauakes.
the
13 earthaua~,es
The magnitudes
1 e>:cept
Bath,
ot
in the northeastern
in Canada but
border.
total
a
and Table
5
earthGuakes.
The masnitudes
fro... 1.3 to 4.0.
1979,
In addition,
had epicenters
the
June
and located
detected
aftershocl-,s,
less
-
offshore.
4 suspected
Candia,
April
for
the
HE event
NH earthouake.
series
and
of
in
the events
of
the
Table
in
2
ranSe
Table
4 are
aftershocks
one aftershoc~,
associated
for
the
Page 5"
EXPLANATION OF TABLES
Table
Table
1:
Lis~
of
Opera~ing
Seismic
1.
Station
code.
2.
Station
latitude,
3.
Station
lonsitude,
deSrees
4.
Station
elevation,
meters.
5.
Geographic
6.
Network
2:
desrees
S~a~ions.
north.
west.
location
operator.
Epicenter
List.
1.
Event
felt
date,
data.
ori.£fin
time(UTC),
.£feoSraphic
r,ame,
and
2.
Epicenter
determined
b~:
WES-Weston ObserYator~
LDO-Lamont-Dohert~
Geological
Ot\serYator~
EPB-Earth
Ph~sics
Branch,
Ottawa.
0 jI',m(U.S.)
values.
and
3. Orisir.. time (UTC).
4.
Event
latitude,
5.
Event
longitude,
6.
Event depth,
kilometers.
0 jI',m or 18 jI',m(Carlada)
7.
RMS error(sec)
8.95%
and
9.
Table
of
are
Depths of
restrained
least-sQuares
ellipse
lensths(I-,m)
location.
data:
semi-maJor
azimuth,
semi-maJor
and -minor
a>tes.
geographic:
name,
Event magnitude:
Mn-Nuttli
Ls magnitude
Mc-Coda duration
masnitude(WES).
Event
felt
2.
degrees
of
confidence
3: Event
1.
desrees
Station
data
date,
data.
code
list
origin
time(UTC),
and
Page 6
3.
5.
Epicentral
6.
Station
7.
Peak-to-pea~,
ground
motion,
in millimicrons,
ma>:imum envelope
ampl itude
of vertical-c.'omponent
signal,
corrected
for s~stem response.
8.
Period,
amplitude
9.
Hn as calculated
distance.
1.
Table
also
Station
4:
5:
arrival
is
4.
10.
Table
Emersent(e)
or impulsive(i);
phase t~pe(P,Ps,P*,Pn,S,SS,S*,Sn).
If impulsive,
direction
of first
motion
included:
compression(c)
or dilatation(d).
time(UTC)
distance,
aziauth,
in
km
deS.
sec, of the
was measured.
fro«,
sisnal
amplitude,
from
which
period,
of
the
the
and
Hc=2.23Los(D>+0.12Los(k)-2.36,
where D is the
coda duration,
in sec, and ~, is the epicentral
distance,
in km.
Foreshoc"..s,
Aftershoc"..s,
Event date,
origin
station,
magnitude,
Suspected
The format
and Hicroearthoua"..es
time(UTC),
r..earest
recording
and geographic
reSion.
and Poorlw-Located
for
Tables 2 and 3.
this
table
is
Earthaua~,es.
a combination
of
those
for
Page 7
APPENDIX
VELOCITY MODELS USED FOR EPICENTER LOCATIONS
IN THE NORTHEASTERNUNITED STATES
To
sec
---
DEPTH
6.1
6.6
8.1
0.0
0.5
6.3
0.0
4.0
35.0
4.5
5.0
6.0
0.0
0.2
1.4
0.0
1.0
6.0
5.9
0.0
0.0
Southeastern
NY and
northern
New' Jerse~(LDO)
5.98
6.62
8.1
0.0
1.0
6.5
0.0
7.0
35.0
New Ensland(WES)
5.31
6.06
6.59
8.10
0.0
0.16
1.78
6.72
0.0
0.88
13.09
34.60
VEL
",m/ sec
REGION
Nor~hern
New Yor~, and
AdirondacKs(lDO)
Attica,
Blue
New York(lDO)
Htn.
lake,
New York(lDO)
,,- 1ft
.
~
0
CX)
V
0
to-V
W'
0
r~
0
0
0
an
to
V
0
qq-
v
0
(\J
V
~
q-
V
0
a>
~
~
"
~
...
~
\\ 6:
~
~
~ ~
~
~
7\
--.
--
.
~--,~
r
-'
v
(""~
0
to--
\8
~ ~
~
.
.
.
-'
0
'"'\
I
~
.~
~
"'
'1-
.
--.~
-
~
~
---
~
t..!4
.
r-~
~
0
~
q
t-
\
-~.
~
0
~
.
~
~
,
,
,
~
.r
,.
~
~
-t
-
,
,
0
---,-
to-
-"
-'
~
~
--"---
-t?,
Figure
1.
+-:;;:::~
~-~~:
,
:
\ . I,
\
,-{
~.
~
~
CD
to.
0
~
~
~
~
N
0
0)
It)
0
V
,
""-";
0
0
0
~
~;
0
0
'
.
~
0
CD
V
0
,q-
0
(0
V
0
0
an
v
N
0
~
V
V
V
0
q-
q-
0
0
0
V
m
~
0
Q)
It)
7:
~ ~
0
V
CD
?,
..-~
~ ~
~
0
~
~~
-~
~
~
~
0
.
~
~
~
~
~
~,
~,
0
-~
0
r--
~
,
~
~--
~
0
(\J
roo.
f-.
~
-!r-
V
to-
~
~
Qj
~
~
~
~
Qj
r-4
CIa
C
tfJ
.
In
~
=
Q)
\.
--~
,
.~..
\. , \
--I-"
!
~
~
---
---'"
..
~
\
,
,
\
--
-
~
~
,~
t1
2.
Earthquake
epicenters
.. --.
during
period
,
,
\
0
0
Figure
\\
\
\
\\
\
---t-\
\
\
\.
-'1
-
..I
-10---
~
~
Q)
rz.
.
"
If)
\
.
,J
~
0
r--
~~
~--
8'..
~
~
0
0
---
'
April-June
1979.
0
V
(0
0
<D
<D
0
a>
(0
0
0
r--
0
C\J
r-
0
V
~
0
w
r-
0
a>
~
0
0
(J)
Figure
3.
Earthquake
epicenters
during
the
period
October
1975
-
June
1979.
TABLE
lIST
STA
ID
OF OPERATING SEISMIC STATIONS BY STATE
APRIL - JUNE 1979
lATITUDE lONGITUDE ELEVATION
de~rees
de~rees
meters
OPERATOR
CANADA,STATIONS USED FOR LOCATIONS IN THIS BULLETIN
HAL
lHQ
POC
UNB
44.6333N
47.5484N
47.3600N
45.9500N
63.6000W
70.3267W
70.0400W
66.6333W
56
419
61
56
HALIFAX,NS
LA HALBAIE,PQ
LA POCATIERE,PQ
FREDERICTON,NB
EPB
EPB
EPB
EPB
BROOKFIElD,CT
EllSWORTH,CT
HADDAM,CT
MOODUS(COMSTOCKBRIDGE)
MOODUS(PICKEREL lAKE),C
MOODUS(CAVE HIll),CT
N STONINGTON,CT
STORRS,CT
WES
WES
WES
WES
WES
WES
WES
WES
BLACKBIRD,DE
GEORGETOWN,
DE
NEWARK,DE
DGS
DGS
DGS
CONNECTICUT
41.4933N
41.8346N
41.4857N
41.5529N
41.5314N
41.5066N
41.4807N
41.8317N
73.3839W
73.4113W
72.5232W
72.4667W
72.4337W
72.4715W
71.8516W
72.2505W
DELAWARE
BBD
GTD
NED
39.3461N
38.7414N
39.7042N
75.6767W
75.4144W
75.7082W
18
15
46
47.0817N
44.6317N
46.9325N
47.0586N
47.1304N
47.0876N
47.1881N
47.0113N
47.0890N
44.7392N
44.6564N
HNHE 46.1599N
JKH
45.6555N
MIM
45.2436N
PQO
44.9863N
PQl
44.9035N
TRH
44.2597N
69.0233W
68.7893W
68.1208W
69.0989W
69.1524W
69.1687W
69.2767W
69.2650W
69.4957W
67.4894W
69.6408W
67.9867W
70.2426W
69.0403W
67.4674W
67.3271W
70.2551W
240
80
250
304
402
259
490
365
430
20
79
209
378
140
219
93
113
ALLAGASH,ME
BUCKSPORT,ME
CARIBOU,ME
DICKEY,ME
DICKEY(KELLY MTN),ME
DICKEY(CARTER BROOK),ME
DICKEY(ROCKY MTN),ME
DICKEY(BROWNSBROOK),ME
DICKEY(TWO MILE STREAM),
EAST MACHIAS,ME
HINCKLEY,ME
HOULTON,ME
JACKMAN,ME
MILO,ME
COOPERHILL,ME
EAST RIDGE,ME
TURNER,ME
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
70.1350W
-85
CAPE COD,HA
HIT
MAINE
AGM
BPM
CBM
D1A
D2A
D3A
D4A
D5A
D6A
EMH
HKM
MASSACHUSETTS
COD
41.6856N
TABLE 1 Continued
DUX
FLR
GLO
HRV
LNX
QUA
WES
WFH
42.0686N
41.7167N
42.6403N
42.5064N
42.3389N
42.4566N
42.3847N
42.6106N
PAGE 2 OF 3
70.7678W
71.1215W
70.7272W
71.5583W
73.2724W
72.3738W
71.3221W
71.4906W
27
52
15
180
345
201
60
87
DUXBURY,MA
FAll RIVER,MA
GlOUCESTER,MA
HARVARD,MA
lENOX,MA
QUABBIN ,MA
WESTON,MA
WESTFORD,MA
HIT
WES
HIT
HIT
WES
WES
WES
HIT
71.2564W
70.8948W
72.2856W
71.5055W
72.1358W
71.3997W
472
24
180
280
659
220
BERLIN,NH
DURHAM,NH
HANOVER,NH
OAKHILL,NH
PITCHER MTN,NH
WHITEFACE,NH
WES
HIT
WES
HIT
HIT
HIT
GARRET HOUNTAIN,NJ
GREEN POND,NJ
LONG VALLEY,NJ
OGDENSBURG,NJ
PAHAQUARRY,NJ
PRINCETON,NJ
RAHAPO,NJ
LDO
LDO
LDO
LDO
LDO
LDO
LDO
ALEXANDERBAY,NY
AIRPORT HANGAR,NY
BANGOR,NY
BINGHAMTON,NY
BLUM,NY
BLUE MOUNTAIN LAKE,NY
CANISUS,NY
CLINTON,NY
CRYSTAL LAKE,NY
CROGHAN,NY
CASTLE ROCK,NY
DANNEMORA,NY
DUNDERBURG
MTN,NY
DERSAM,NY
DELLI PAOLI,NY
EAGLES NEST,NY
GOBBELET,NY
GIRL SCOUT CAMP,NY
LDO
LDO
LDO
LDO
CON*
LDO
LDO
LDO
LDO
LDO
LDO
LDO
CON*
LDO
CON*
LDO
CON*
CON*
CON*
LDO
LDO
LDO
LDO
CON*
LDO
NEW HAMPSHIRE
BNH
DNH
HNH
ONH
PNH
WNH
44.5906N
43.1225N
43.7053N
43.2792N
43.0942N
43.8683N
NEWJERSEY
GMTN
GPD
LVNJ
OGD
PQN
PRIN
RAMA
40.8825N
41.0177N
40.8095N
41.0667N
41.0073N
40.3668N
41.0952N
74.1845W
165
74.4608W
360
74.7515W
201
74.6166W -363
75.0858W
229
74.7178W
110
74.2140W 247
NEWYORK
ALX
APH
BGR
BING
BLM
BML
CANY
CLIN
CLY
CROG
CTR
DANY
DBM
DNY
DPL
EGN
GOB
GSC
IPS
AMNH
MEDY
MSNY
OCN
OSB
PAL
44.3225N
43.8413N
44.8288N
42.0757N
41.3297N
43.8680N
42.9255N
41.8750N
43.8513N
43.9050N
43.8741N
44.7583N
41.2944N
42.8363N
41.2528N
43.8596N
41.3294N
41.2661N
41.2672N
40.7808N
43.1818N
44.9983N
43.8848N
41.3603N
41.0042N
75.9280W
74.4970W
74.3742W
75.9767W
73.9550W
74.4020W
78.8528W
73.8490W
74.4490W
75.4125W
74.4600W
73.8357W
73.9750W
78.1688W
73.9108W
74.4818W
73.9219W
74.0039W
73.9483W
73.9738W
78.3903W
74.8620W
74.5293W
73.9239W
73.9091W
122
564
329
408
134
305
192
168
579
244
585
507
27
381
67
549
150
110
0
0
186
55
701
212
91
HANHA
TT AN ,-NY
HEDINA,NY
HASSENA,NY
OVER CASTLE
OSBORN,NY
ROCK, NY
PALISADES, NY
TABLE 1 Continued
PNY
PTN
SANY
SNP
BPS
SRM
STL
TBR
UWL
WGL
WND
WNY
WPNY
WPR
WVLY
44.8341N
44.5725N
43.1738N
41.2408N
41.3019N
41.2283N
41.1886N
41.1417N
43.8378N
41.3589N
42.3375N
44.3910N
41.8030N
41.2546N
42.4708N
PAGE 3 OF 3
78.8703W
73.9711W
73.8905W
74.0139W
74.0036W
74.2222W
74.5433W
73.8994W
74.1525W
73.8595W
73.9707W
73.5856W
78.5683W
177
238
172
30
168
165
125
261
561
152
602
598
76
152
600
STONEY PT,NY
ST PETERS SCHOOL,NY
SCHERMAN,
NY
STILES,NY
TABLE ROCK,NY
UTOWANALAKE,NY
WEGEL,NY
WINDHAM,NY
WILMINGTON,NY
WESTPARK,NY
WARDPOUND RIDGE,NY
WEST VALLEY,NY
LDO
LDO
LDO
CON*
CON*
CON*
CON*
LDO
LDO
CON*
LDO
LDO
LDO
LDO
LDO
80.3333W
79.9833W
76.3506W
75.1333W
77.8650W
0
0
0
0
352
BEAVER,PA
ERIE,PA
MILLERSVILLE,PA
ABINGTON,PA
STATE COLLEGE,PA
PSU
PSU
HSC
PSU
PSU
72.5853W
73.1458W
72.1709W
72.9517W
73.0533W
72.8008W
73.1811W
72.6278W
72.6067W
300
85
370
366
295
580
134
262
240
BALTIMORE,VT
COLCHESTER,VT
DERBY,VT
FLETCHER,VT
IRA,VT
MARLBORO,VT
MIDDLEBURY,VT
MONTGOMERY,VT
MONTPELIER,VT
WES
LDO
WES
LDO
WES
LDO
LDO
LDO
LDO
73.5550W
74.
9828W
PLATTSBURG, NY
POTSDAM,NY
SANBORN, NY
PENNSYLVANIA
BVR
ERI
HVL
PHI
SCP
40.7000N
42.1333N
39.9992N
40.1166N
40.7950N
RHODE ISLAND
VERMONT
BVT
COV
DVT
FLET
IVT
MARL
MDV
MGVT
MPVT
43.3488N
44.5777N
44.9620N
44.7228N
43.5221N
42.8383N
43.9991N
44.9136N
44.2783N
* STATION CODES NOT ALL CLEARED THROUGH NEIC
OPERATORCODE
CON DGS EPB LDO -
CONSOLIDATEDEDISON,INDIAN POINT,NY
DELAWAREGEOLOGICAL SURVEY
EARTH PHYSICS BRANCH,DEPT.OF ENERGY,MINES,AND RESOURCES,
CANADA
LAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIVERSITY
MASSACHUSETTSINSTITUTE OF TECHNOLOGY
MSC - MILLERSVILLE STATE COLLEGE
PSU - PENNSYLVANIA STATE UNIVERSITY
WES - WESTONOBSERVATORY,
BOSTON COLLEGE
MIT -
N
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TABLE 3
EARTHQUAKEDATA LIST
NORTHEASTERNUNITED STATES AND ADJACENT REGIONS
APRIL
JUNE
-
1979
STA PHASE
---
ARRIVAL
DIST
AZ
1979APR18 0234
TRH iPsC 02
HKM iPsC 02
DNH eP*
02
WNH eP*
02
MIM iPnC 02
OLD ePn
02
EMM iPnD 02
WFM ePn
02
HNH iPnD 02
PNH ePn
02
WES ePn
02
HRV ePn
02
DVT iPnC 02
QUA ePn
02
IVT iPnC 02
FLR ePnC 02
HNME iPnD 02
UCT ePnD 02
PNY ePn
02
LNX ePnD 02
D6A iPnC 02
AOM iPnC 02
CBH iPnC 02
HE,BATH
34 22.9
34 27.3
34 36.3
34 36.5
34 39.4
34 41.0
34 45.8
34 45.9
34 46.2
34 47.6
34 47.2
34 47.3
34 48.1
34 53.8
34 53.9
34 53.9
34 55.3
34 58.5
35 00.0
35 02.2
35 03.7
35 04.1
35 04.3
1979APR20 1032
UNB eP~
10
EHH eP*
10
HNHE ePn
10
HAL ePn
10
BPH ePn
10
HIH ePn
10
CBH ePn
10
HKH ePn
10
D2A ePn
10
JKH ePn
10
NB.BAY OF FUNDY FELT
33 04. 1
92~,m 330d.fJ
33 09.4
128km 245d.fJ
33 17.1
184~,. 305d.fJ
33 19. 2 203~,m 109d.fJ
33 22.2
228km 254d.fJ
33 23.2
237~,m 271d.fJ
33 24.8
248km 320d.fJ
33 30. 2 292~,m 259d.fJ
33 33. 2 320~,m 312d.fJ
33 35.4
3~3km 280d.fJ
1979APR21 1333
PQ,LA MALBAIE
20~,m
34 06. 0
20~,m
34 05. 1
33~,m
34 09. 5
33~,m
34 12. 6
77~,m
34 21. 7
77~,m
34 15. 2
94~,m
LMQ ePs
LMQ eSs
F'OC ePs
POC eSs
D6A ePs
D6A eSs
D3A ePs
Continued
13 34 03. 2
13
13
13
13
13
13
AHP
PERIOD
MAGNITUDE
INT V
53km
79km
131
'"'..
133,",.0.
154km
166'"'..
200km
206km
206'"'..
215,",.m
216km
218km
223,",.m
271,",.m
271km
273'"'..
282km
312,",.18
319km
338km
349km
353km
355k..
310dS
6ds
226dS
267ds
21dS
209ds
63ds
224ds
263dS
24SdS
217ds
223ds
301dS
233dS
261ds
20SdS
29ds
222dS
289ds
239ds
3dS
9ds
21ds
236d~
236d~
172d~
172d~
143ds
143d~
131d~
3.97Hc
3.98Hc
3.99Hc
4.01Hc
3.20Hc
3.2311c
TABLE 3 (Continued)
STA PHASE
---
D3A eSs
AGH ePS
CBH eP*
PaSe
DIST
ARRIVAL
13 34 27.6
13 34 16.8
13 34 27.7
94km
AZ
AMP
PERIOD
2 of
4
MAGNITUDE
131ds
103k.. 127ds
170km
1979APR23 0005
DNH ePS
00
WFM ePS
00
GLO ePS
00
HRV ePS
00
WES ePS
00
PNH ePS
00
WNH ePS
00
HNH eP*
00
QUA eP*
00
BVT eP*
00
MARL eP*
00
IVT ePn
00
TRM ePn
00
UCT ePn
00
BNH ePn
00
NSC ePn
00
LNX ePn
00
MDV ePn
00
HDM e**
ECT ePn
00
COV ePn
00
FLET ePn
00
MGVT ePn
00
CLIN ePn
00
WND ePn
00
WNY ePn
00
WPNYePn
00
BPM ePn
00
PNY ePn
00
APH ePn
00
JKM ePn
00
MIM ePn
00
TBR ePn
00
GPD ePn
00
EMM ePn
00
LVNJ ePn
00
HNME ePn
00
CBM e**
NH,CANDIA INT
05 50.6
29km
05 54. 6
52~,m
05 56.1
61km
05 56.6
65km
05 58.1
73~,m
05 58.1
74km
06 01.0
93~,m
06 04.3
113km
06 04.5
113km
06 04.6
115km
06 07. 2 130~,m
06 11. 3 157~,m
06 11. 6 157~,m
06 10.6
158km
06 13. 9 173~,m
06 15.3
181km
06 15. 6 184~,m
06 15. 7 190~,m
203~,m
06 19.1
224km
06 20. 9 230~,m
06 21.2
233~,m
06 22. 1 236~,m
06 24.2
251km
06 24. 4 252~,.
06 24. 1 259~,m
06 25. 0 264~,m
06 25.0
265~,m
06 26.5
273km
06 27.0
279km
06 30.7
302km
06 30.2
302~,m
06 32.7
325~,m
06 35.5
349km
06 35.7
356km
1979MAY041902
MDV ePs
19
MDV eSs
19
COV eF's
19
WNY ePs
19
IVT ePs
19
IVT eSs
19
FLET ePs
19
Continued
VT,NORTH
02 22.3
02 23. 7
02 29. 7
02 30.4
02 31.0
02 38.4
02 32.6
117dS
III-IV
72dS
204ds
137ds
204ds
186ds
275ds
352ds
311dS
236ds
288dS
261 ds
291dS
30ds
212ds
360ds
197ds
246ds
305ds
212ds
234ds
319dS
324ds
332ds
240ds
253ds
306ds
240ds
47ds
318ds
290ds
15ds
35ds
231ds
231ds
57ds
06 39. 7
383~,m 231ds
06 45.1
432km
498~,m
36ds
29ds
OF MIDDLEBURY
1O~,m 159ds
10~,m 159ds
55~,m
7ds
61~,m 304ds
64~,m 167ds
64~,m 167ds
74~,m
17ds
3.1.0Hc
83mu O.2sec
3.39Hn
63mu O.2sec
3.18Hn
3.08Hc
37mu
0.2s&c
3.17Mn
27mu
14mu
O.2sec
O.4sec
3.01Mn
2.62Mn
1.32Hc
TABLE 3 (Con~inued)
STA PHASE
---
PNY ePS
APH ePS
ARRIVAL
19 02 34.8
19 02 38.1
Pa~e
DIST
AZ
AMP
PERIOD
J of'
-4
MAGNITUDE
871-,m 343dS
106km
256ds
1979MAY151049
LHQ eP~
10
LHQ eS~
10
POC eS~
10
D3A eF'~
10
D3A eS~
10
CBM eS*
10
PQ,LA MALBAIE
49 45.6
23~,m
49 48.9
23km
49 48.5
23km
49 55.2
84~,m
50 06.3
84km
50 27. 1 160~,m
1979HAY15 1751
SANY ePs
17
SANY eSS
17
CRaG ePn
17
CRaG eSn
17
PTN ePn
17
PTN eSn
17
PNY ePn
17
ON,NORTHERNLAKE ONTARIO
51 51.4
118~,m 216ds
52 06.0
118~,m 216dS
52 04.0
209km
93ds
52 27.8
209km
93dS
52 08. 7 249~,m
75dS
52 36. 5 249~,m
75ds
52 22. 2 366~,.
74ds
1979MAY152212
MDV ePS
22
MDV eSs
22
COV ePS
22
FlET ePS
22
HNH eSS
22
APH ePS
22
MARL eP*
22
VT,NORTH OF MIDDLEBURY
13 00.4
11km 179ds
13 01.8
11~,m 179ds
13 07. 7
53~,m
3ds
13 09.6
72km
15dS
13 22.6
85~,m 121dS
13 16.2
109~,m 255d~
13 21.6
144~,m 167ds
1979MAY292048
MSNY EPs
20
HSNY ESs
20
PTN EPs
20
PTN ESs
20
BGR EPs
20
DANY EPS
20
DANY ESs
20
PNY EPs
20
PNY ESs
20
APH EP*
20
APH ES*
20
FLET EP*
20
FLET ES*
20
NY,MASSENA
48 50. 7
1O~,m
48 51.1
10~,m
48 56. 6
48~,m
49 02. 9
48~,m
48 57. 2
52~,m
49 04.1
95km
49 17.2
95~,m
49 06.9
115~,m
49 21.9
115~,m
49 10.2
135~,m
49 27.0
135km
49 14.6
164km
49 36.0
1'64km
1979JUN071345
DANY ePs
13
PNY ePs
13
BGR ePs
13
BGR e**
13
HDV ePs
13
HDV e**
13
FLET ePs
13
Continued
NY,AUSABLE FORKS
45 59.1
36~,m
3ds
46 01.2
51~,m 28ds
46 02.8
60~,m 317ds
46 10.1
60~,m 317ds
46 04.7
72~,m 131dS
46 13.2
72~,m 131ds
46 05. 7
79~,m 65ds
265ds
265ds
184ds
129ds
129ds
116ds
91 ds
91 ds
180 ds
180 dS
111 ds
106 dS
106 ds
99 ds
99 ds
163 ds
163 ds
100 ds
100 ds
2.56Hc
1.39Hc
TABLE 3 (Continued)
STA PHASE
--FLET e**
APH epg
PTN epg
MSNYePg
MGVT epg
MGVTe**
PaSe
ARRIVAL
13
13
13
13
13
13
46
46
46
46
46
46
15.3
06.4
07.7
09.2
10.7
24.0
DIST
79km
83km
91",m
102km
111km
111",m
AZ
NY,PORT LEYDEN
45 14.5
27km 338dst
45 17. 8
27~,m 338dst
45 20. 8
66~,.
74dst
45 29.1
66km
74dst
45 35.0
88km 325dst
45 39.2
102km
14dst
1979JUN20 1920
TBR ePs
19
GPD ePs
19
WPR ePs
19
LVNJ ePs
19
PGN ePs
19
CLIN ePs
19
NY,GOSHEN
20 22.1
26km
20 24.0
371-,m
20 29.0
671-,m
20 29.1
68km
20 29.6
711-,
20 29.8
73km
1979JUN271041
HNME ePs
PQO ePS
EMM ePS
MIM eP*
CBM eP*
BPM eP*
D3A ePn
JKM ePn
TRM e**
NB,NORTH OF JUNIPER
41 42.0
73km 315ds
41 43. 3
80~,. 188ds
41 47.8
108~,. 187dS
41 53.6
144~,m 250ds
41 54.1
150~,. 336ds
41 56.1
166~,m 225ds
42 02.6
210km 318dS
42 04.8
228km 270ds
282~,m 236ds
10
10
10
10
10
10
10
10
AMP
PERIOD
62mu
O.Ssec
2.46Hn
26mu
O.Ssec
2.53Hn
4
MAGNITUDE
65ds
218ds
280dS
309ds
61ds
61dS
1979JUN12 0945
CRaG ePs
09
CRaG eSs
09
APH ePs
09
APH eSs
09
ALX eSS
09
PTN eSS
09
III
4 of
151dS
191ds
99ds
20Sds
23SdS
37ds
2.54Mc
2.78Mc
2.62Mc
2.80Mc
TABLE -4
FORESHOCKS,AFTERSHOCKS, AND MICRO-EARTHQUAKES
DATE ARRIVAL-TIHE
01 APR 0152
02 APR 0158
04 APR 2115
06 APR 0236
09 APR 0608
10 APR 0119
12 APR 0743
16 APR 1935
18 APR 0241
18 APR 0245
18 APR 0307
18 APR 0308
18 APR 0317
18 APR 0353
18 APR 0357
18 APR 0557
18 APR 0647
18 APR 0717
19 APR 1515
23 APR 0006
29 APR 0135
09 HAY 2329
11 HAY 1119
13 HAY 0016
27 HAY 185703.8
06 JUN 1907
06 JUN 1908
18 JUN 0739
21 JUN 1241
STATION
BHL
BHL
BHL
BHL
BHL
TRH
FLR
BHL
TRH
TRH
TRH
TRH
TRH
TRH
TRH
TRH
TRH
TRH
TRH
WES
TRH
BHL
TRH
TRH
BHL
TRH
TRH
TRH
TRH
MAGNITUDE
<1
<1
<1
<1
<1
<1
<1
<1
3.0
2.1
2.2
2.6
1.2
1.4
1.3
1.7
1.2
2.0
<1
2.7
<1
<1
2.3
2.4
<1
1.1
1.0
1.1
<1
LOCATION
BLUE MOUNTAIN LAKE,NY
BLUE MOUNTAIN LAKE,NY
BLUE MOUNTAIN LAKE,NY
BLUE MOUNTAIN LAKE,NY
BLUE MOUNTAIN LAKE,NY
TURNER,ME
FALL RIVER,MA
BLUE MOUNTAIN LAKE,NY
BATH,ME
BATH,ME
BATH,ME
BATH,ME
BATH,ME
BATH,ME
BATH,ME
BATH,ME
BATH,ME
BATH,ME
BATH,ME
CANDIA,NH
TURNER,ME
BLUE MOUNTAIN LAKE,NY
BATH,ME
BATH,ME
BLUE MOUNTAIN LAKE,NY
BATH,ME
BATH,ME
BATH,ME
BATH,ME
TABLE 5
SUSPECTEDAND POORLY LOCATED EARTHQUAKES
NORTHEASTERNUNITED STATES AND ADJACENT REGIONS
APRIL
-
JUNE
1979
1979HAY052347
*WES 23 47 13
LHQ eP~
23
LHQ eS~
23
POC eS~
23
D3A eP~
23
D3A eS~
23
AGH eP~
23
AGH eS~
23
CBH eS~
23
HNHE eS~
23
PQ,RIVIERE DU LOOP
47.7N
70.0W
OR 0.48
47 18.7
34km 235d~
47 23.0
34km 235d~
47 24.7
41~,. 189d~
47 28.8
93km 140d~
47 39.9
93~,m 140d~
47 29.9
100~,m 135d~
47 42.4
100km 135d~
47 59.1
164~,m 122d~
48 19.1
230~,m 139d~
1979HAY31 0040
*WES 00 40 30
CBH eP.s
00
CBH eS.s
00
D3A eP.s
00
D3A eS.s
00
NB,NE OF EDHUNDSTON
47.6N
68.1W
OR 0.27
48
102
40 41.5
70".",
181d.s
14mu 0.7sec
40 49.6
70"..
181d.s
40 45.3
96".",
237d.s
40 57.5
96km
237d.s
1979HAY31 0602
*WES 06 02 46
CBH ePS
06
CBH eSS
06
D3A ePS
06
D3A eSs
06
NB,NE OF EDHUNDSTON
47.6N
68.1W
OR 1.76
02 57.5
70km 181ds
03 05.4
70~,m 181ds
03 01.5
96~,m 237ds
03 16. 8
96~,m 237ds
1979JUN212123
*WES 21 23 05
D3A ePS
21
D3A eSS
21
JKH eSS
21
CBH ePS
21
CBH eSn
21
CBH eSs
21
PQ,PETITE RIVIERE
47.3N
70.7W
OR 0.80
23 23.8
115km 100ds
23 36.8
115km 100ds
23 57.2
183~,m 170ds
23 36.7
197~,m 100ds
23 59.5
197km 100ds
24 01.9
197~,m 100dS
6
10.8
~.6
2.7Hc
2.71Hc
54 1.6Hn 2.0Hc
1.58Hn
1.83Hc
2.24Hc
1.9Hc
1.88Hc
117
55
18
2.3Hc
2.27Hc
2.36Mc
DISTRIBUTION
Recipient
No.
30
Dr.
Jerr~
Branch.
30
Dr.
Paul
5
Dr.
H. Nafi
Technolos~
5
Dr.
Yash P. ASSarwal.
Observatorw
5
Dr.
Shelton
Universitw
5
Mr.
5
Ear~h
1
Consolidated
1
Weston
1
File
Harbour.
Nuclear
W. Pomerow. Coordina~or
S.
Ph~sics
Observatorw,
State
Geolosical
Surve~
Canada
of
Ne,w York
Librar~
Boston
Collese
of
Geolosical
Pennswlvania
Delaware
Branch,
Observator~
Institute
Lamont-Dohertw
Ale>:ander,
Edison
NEUSSN
Massachusetts
To"',soz,
Ken Woodru~~,
Weston
Chief.
Site
Safet~
Research
Re~ulator~
Com.ission