A STUDY OF NEW ENGLAND SEISMICITY
Quarterly Earthquake Report
April - June, 2009
Weston Observatory
New England Seismic Network
381 Concord Road
Weston, MA 02493
NEW ENGLAND SEISMIC NETWORK (NESN)
John E. Ebel, Principal Investigator
Weston Observatory
Dept. of Geology and Geophysics
Boston College
381 Concord Road
Weston, MA 02493
Email: ebel@bc.edu
Award #04HQAG0020
Prepared by Anastasia Macherides Moulis
and Dina Smith
July, 2009
for
United States Geological Survey
905 National Center
12201 Sunrise Valley Drive
Reston, Virginia 20192
Notice
Network operation supported by the U.S. Geological Survey (USGS), Department of the Interior,
under USGS award number 04HQAG0020. The views and conclusions contained in this
document are those of the authors and should not be interpreted as necessarily representing the
official policies, either expressed or implied, of the U.S. Government.
NESN Quarterly Earthquake Report
April - June, 2009
Table of Contents
* Introduction
* Current Network Operation and Status
* Seismicity
* Data Management
* Tables
o Explanation of Tables
o Table 1 Project Personnel
o Table 2 Seismic Stations
o Table 3 Earthquake Hypocenters
o Table 4 Earthquake Phase Data
o Table 5 Microearthquakes and Other Non-locatable Events
* Figures
o NESN Station Map
o NESN Strong-Motion Station Map
o NESN Quarterly Seismicity Map
o NESN Cumulative Seismicity Map
* Acknowledgments
* References
Introduction
The New England Seismic Network (NESN) is operated by the Weston Observatory (WES) of
Boston College. The mission of the NESN is to operate and maintain a regional seismic network
with digital recording of seismic ground motions for the following purposes: 1) to determine the
location and magnitude of earthquakes in and adjacent to New England and report felt events to
public safety agencies, 2) to define the crust and upper mantle structure of the northeastern
United States, 3) to derive the source parameters of New England earthquakes, and 4) to estimate
the seismic hazard in the area.
This report summarizes the work of the NESN for the period April - June, 2009. It includes a
brief summary of the network's equipment and operation, and a short discussion of data
management procedures. A list of participating personnel is given in Table 1. There were 16
earthquakes that occurred within or near the network during this reporting period. Phase
information for these earthquakes is included in this report.
Current Network Operation and Status
The New England Seismic Network of Weston Observatory of Boston College currently consists
of 12 broadband three-component and 8 analog strong-motion stations. The coordinates of the
broadband stations are given in Table 2, and maps of the weak- and strong-motion networks are
shown in Figures 1 and 2, respectively. The 12 stations consist of Guralp CMG-40T threecomponent sensors. Ground motions recorded by these sensors are digitized at 100 sps with 16bit resolution. Additional gain-ranging provides 126 dB dynamic range. These stations are
operated in continuous mode with all waveform data transmitted via the internet to Weston
Observatory for analysis and event archiving.
Seismicity
There were 16 earthquakes that occurred in or adjacent to the NESN during this reporting period.
A summary of the location data is given in Table 3. Figure 3 shows the locations of these events.
Figure 4 shows the locations of all events since the beginning of network operation in October,
1975.
Table 4 gives the station phase data for each event listed in Table 3. In addition to NESN data,
arrival time and magnitude data sometimes are contributed for seismic stations operated by the
Geological Survey of Canada (GSC), the Lamont-Doherty Cooperative Seismographic Network
(LD), and the US National Seismic Network. Final locations for this section were computed
using the program HYPO78. For regional events (those too far from the NESN to obtain accurate
locations and magnitudes) phase data are given for NESN stations, but the entry in Table 3 lists
the hypocenter and geographic location information adopted from the authoritative network.
Accordingly, the epicenter is plotted on the maps using the entry from Table 3.
Data Management
Recent event locations are available at http://quake.bc.edu:8000/quakes_recent.htm. Waveform
data are saved in SAC, and SEED formats and are available through the IRIS DMC at:
http://www.iris.edu/dms/dmc/. Earthquake catalogs can be found at:
www.bc.edu/research/westonobservatory/northeast/eqcatalogs/ and http://quake.bc.edu:8000/cgibin/NESN/recent_events.pl. Currently available on the Weston Observatory web page is the full
catalog of northeastern U.S. earthquake activity. For more information consult our web site,
http://www.bc.edu/research/westonobservatory/ or contact:
Anastasia Macherides Moulis
Weston Observatory
381 Concord Road
Weston, MA 02493
Voice: 617-552-8325 / Email: anastasia.macherides.1@bc.edu
Dina Smith
Weston Observatory
381 Concord Road
Weston, MA 02493
Voice: 617-552-8335 / Email: dina.smith.1@bc.edu
Prof. John Ebel
Weston Observatory
381 Concord Road
Weston, MA 02493
Voice: 617-552-8319 / Email: ebel@bc.edu
Explanation of Tables
Table 1: Personnel operating the NESN
Table 2: Seismic and Strong Motion Stations
1. Code = station name
2. Lat = station latitude, degrees north
3. Long = station longitude, degrees west
4. Elev = station elevation in meters
5. Location = geographic location
6. Operator = network operator
Table 3: Earthquake Hypocenters
1. Date = date event occurred, Yr (year)/Mo (month)/Dy (day)
2. Time = origin time of event, Hr (hour):Mn (minute):Sec (second)
in UCT (Universal Coordinated Time, same as Greenwich Mean Time)
3. Lat = event location, latitude north in degrees
4. Long = event location, longitude west in degrees
5. Depth = event depth in kilometers
6. Mn = Nuttli Magnitude
7. Mc = Coda Magnitude
8. Location = event geographic location
Table 4: Earthquake Phase Data
1. Geographic location
2. DATE = date event occurred, yr/mo/dy (year/month/day)
3. ORIGIN = event origin time (UCT) in hours, minutes, and seconds
4. LAT N = latitude north in degrees and minutes
5. LONG W = longitude west in degrees and minutes
6. DEPTH = event depth in kilometers
7. MN = Nuttli Lg phase magnitude with amplitude divided by period
8. MC = signal duration (coda) magnitude
WES: 2.23 Log(FMP) + 0.12Log(Dist) - 2.36 (Rosario, 1979)
9. ML = local magnitude
WES: calculated from Wood-Anderson seismograms (Ebel, 1982)
GSC (Geological Survey of Canada): Richter Lg magnitude
10. GAP = largest azimuthal separation, in degrees, between stations
11. RMS = root mean square error of travel time residual in seconds
12. ERH = standard error of epicenter in kilometers
13. ERZ = standard error of event depth in kilometers
14. Q = solution quality of hypocenter
A = excellent
B = good
C = fair
D = poor
Table Body: earthquake phase data
1. STN = station name
2. DIST = epicentral distance in kilometers
3. AZM = azimuthal angle in degrees measured clockwise between true north and vector
pointing from epicenter to station
4. Description of onset of phase arrival
I = impulsive
E = emergent
5. R = phase
P = first P arrival
S = first S arrival
6. M = first motion direction of phase arrival
U = up or compression
D = down or dilatation
7. K = weight of arrival
0 = full weight (1.0)
1 = 0.75 weight
2 = 0.50 weight
3 = 0.25 weight
4 = no weight (0.0)
8. HRMN = hour and minute of phase arriva l
9. SEC = second of phase arrival
10. TCAL = calculated travel time of phase in seconds
11. RES = travel time residual (error) of phase arrival
12. WT = weight of phase used in hypocentral solution
13. AMX = peak-to-peak ground motion, in millimicrons, of the maximum envelope amplitude
of vertical-component signal, corrected for system response
14. PRX = period in seconds of the signal from which amplitude was measured
15. XMAG = Nuttli magnitude recorded at station
16. FMP = signal duration (coda), in seconds, measured from first P arrival
17. FMAG = coda magnitude recorded at station
Table 5: Microearthquakes and other non-locatable events
1. Date = date event occurred, Yr (year)/Mo (month)/Dy (day)
2. Sta = nearest station recording event
3. Arrival Time = phase arrival time, Hr (hour):Mn (minute):Sec (second)
TABLE 1
WESTON OBSERVATORY PERSONNEL
Name
John E. Ebel
Position
Director, Seismologist,
Principal Investigator
Alan Kafka
Research Seismologist
Anastasia M. Moulis Seismologist, Analyst
Dina Smith
Associate Director of
Operations, Seismologist
Michael Hagerty
NESN Manager,
Seismologist
Weston Observatory 617-552-8388 (FAX)
Phone #
617-552-8319
Email Address
ebel@bc.edu
617-552-8300
617-552-8325
617-552-8335
kafka@bc.edu
macherid@bc.edu
dina.smith.1@bc.edu
617-552-8337
hagertmb@bc.edu
617-552-8300
weston.observatory@bc.edu
TABLE 2
SEISMIC STATIONS OF THE NEW ENGLAND SEISMIC NETWORK
Code
BCX *
BRYW
FFD
HNH
QUA2
TRY
EMMW
VT1 *
WES
WVL
YLE
PQI
WSPT
ORNO
Lat
42.3350
41.9199
43.4700
43.7051
42.2790
42.7305
44.7101
44.3317
42.3848
44.5648
41.3165
46.6701
41.1711
44.9000
Long
-71.1705
-71.5342
-71.6539
-72.2865
-72.3521
-73.6658
-67.4580
-72.7536
-71.3218
-69.6575
-72.9209
-68.0133
-73.3275
-68.6600
* = not in operation during this quarter
Elev (m)
61.0
107
131
180
168
131
34
125
60
85
10
175
~70
~40
Location
Chestnut Hill, MA
Smithfield, RI
Franklin Falls, NH
Hanover, NH
Belchertown, MA
Troy, NY
Machias, ME
Waterbury, VT
Weston, MA
Waterville, ME
New Haven, CT
Presque Isle, ME
Westport, CT
Orono, ME
Operator
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
WES
TABLE 3
EARTHQUAKE HYPOCENTERS
DATE
TIME(UTC) LAT LONG DEPTH Mn Mc
2009/06/28 06:29:10.13 44.37 -70.30 15.23
1.3 2.1
2009/06/27 15:57:52.68
2009/06/18 02:47:52.66
2009/06/12 08:25:50.75
43.34 -71.58
47.56 -69.89
39.89 -70.31
08.65
13.95
09.31
1.5
2.8
2.4
1.9
2.9
2.7
2009/06/05 15:07:52.07
2009/05/28 09:19:26.03
42.83 -78.25
45.77 -75.80
05.00
06.47
2.0
2.9*
2.9
2009/05/18 00:53:29.03
42.55 -74.12
10.99
2.8
3.2
2009/05/12 15:04:09.26
43.95 -71.26
08.22
2.1
2.3
2009/04/30 18:15:50.03
43.98 -72.48
08.10
2009/04/29 19:37:08.05
46.90 -71.10
18.34
2.7
3.1
2009/04/18 00:43:30.01
44.37 -73.82
04.98
1.3
2.5
2009/04/15 17:48:38.41
43.45 -71.54
05.97
2.1
2.2
2009/04/12 12:16:14.77
43.53 -71.64
05.73
1.0
1.8
2009/04/12 06:48:25.63
47.53 -70.10
19.28
2.8
2.7
2009/04/08 05:02:43.88
42.58 -74.11
10.64
1.6
2.4
2009/04/02 15:32:00.92
42.63 -74.11
15.41
2.3
2.6
1.9
LOCATION
ME, 14.7KM SW OF
LIVERMORE FALLS
NH, 11.4KM S OF TILTON
PQ, KAMOURASKA
MA, 155.8KM S OF
NANTUCKET
NY, 52KM E OF BUFFALO
ON, 51.6KM NNW OF
OTTAWA
NY, 32.0KM WSW OF
ALBANY
NH, 11.7KM WSW OF
CONWAY
VT, 2.1 KM SW OF
CHELSEA
PQ, 18.9KM NE OF
QUEBEC
NY, 25.1KM E OF
SARANAC LAKE
NH, 4.0KM ENE OF
TILTON
NH, 9.5KM N OF
FRANKLIN
PQ, 121.9KM NE OF
QUEBEC
NY, 30.1KM WSW OF
ALBANY
NY, 29.1KM W OF
ALBANY
* indicates magnitude as calculated by Lamont Doherty Earth Observatory
^ indicates magnitude as calculated by Earthquakes Canada (Natural Resources Canada)
TABLE 4
EARTHQUAKE PHASE DATA
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Thu Apr 2 13:53:35 2009
CRUST MODEL 1: 3. SE OF NEW YORK, HUGHES & LU
RUN LABEL=
DATE ORIGIN LAT N LONG W
DEPTH MN MC ML GAP RMS ERH ERZ Q
20090402 1532 0.92 42-37.53 74- 6.78 15.41 2.3
2.6 65 0.40 0.6 0.9
NY, 29.1KM W OF ALBANY
NSTA NPHS DMIN N.XMG N.FMG
18 36 24.70 5 4
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
HCNY 24.7 289 EPC0 1532 5.58 4.66 4.46 0.15 1.34
121
S 0 1532 8.83 7.91 7.94 -0.12 1.34
TRY 38.5 72 EPC0 1532 7.46 6.54 6.34 0.15 1.33 1.4 .10 1.8
111
S 0 1532 12.04 11.12 11.29 -0.25 1.33
ACCN 91.8 23 EPC0 1532 15.44 14.52 14.24 0.22 1.25
99
S 0 1532 25.86 24.94 25.35 -0.51 1.25
BRNY 134.8 176 EPC0 1532 21.88 20.96 20.61 0.30 1.16
74
S 0 1532 37.20 36.28 36.69 -0.49 1.16
QUA2 149.9 104 EPC0 1532 24.84 23.92 22.82 1.07 0.92 0.8 .15 2.4 107 2.6 74
S 0 1532 41.80 40.88 40.62 0.21 1.11
NCB 150.0 357 EPC0 1532 23.64 22.72 22.84 -0.22 1.11
124 2.7 74
S 0 1532 41.32 40.40 40.66 -0.43 1.11
BINY 161.4 254 EPC0 1532 25.51 24.59 24.52 -0.01 1.08
108 2.6 74
S 0 1532 44.51 43.59 43.65 -0.20 1.08
MDV 170.3 26 EPC0 1532 27.15 26.23 25.83 0.38 1.05
86 2.5 74
S 0 1532 46.74 45.82 45.98 -0.19 1.05
YLE 175.8 145 EPC0 1532 58.08 57.16 26.64 30.52 0.00
74
S 0 1533 23.65 82.73 47.42 35.31 0.00
ODNJ 176.2 194 EPC0 1532 27.81 26.89 26.69 0.17 1.03
74
S 0 1532 48.01 47.09 47.51 -0.47 1.03
PAL 180.7 174 EPC0 1532 28.74 27.82 27.36 0.45 1.02
74
S 0 1532 49.23 48.31 48.70 -0.41 1.02
HRV 210.2 92 EPC1 1532 34.28 33.36 31.23 2.10 0.00
53
S 1 1532 55.79 54.87 55.59 -0.77 0.69
FFD 221.3 64 EPC1 1532 31.30 30.38 32.59 -2.23 0.00 1.3 .14 2.9
53
S 2 1533 0.90 59.98 58.01 1.93 0.00
LONY 224.8 351 EPC0 1532 33.96 33.04 33.03 -0.06 0.86
53
S 0 1533 0.13 59.21 58.79 0.29 0.86
BRYW 226.6 109 EPC1 1532 34.44 33.52 33.25 0.21 0.64 0.2 .10 2.2
53
S 2 1532 59.09 58.17 59.18 -1.12 0.32
PTN 227.1 343 EPC0 1532 34.94 34.02 33.32 0.67 0.85
53
S 0 1533 0.85 59.93 59.31 0.57 0.85
WES 231.0 95 EPC0 1532 35.13 34.21 33.79 0.41 0.84 0.2 .11 2.2
53
S 0 1533 0.78 59.86 60.15 -0.30 0.84
FRNY 249.1 9 EPC0 1532 37.38 36.46 36.03 0.39 0.77
53
S 0 1533 4.09 63.17 64.13 -1.03 0.68
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Wed Apr 8 11:54:45 2009
CRUST MODEL 1: 3. SE OF NEW YORK, HUGHES & LU
RUN LABEL=
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090408 0502 43.88 42-34.55 74- 6.74 10.64
1.6 2.4
72 0.37 0.5 1.2
NY, 30.1KM WSW OF ALBANY
NSTA NPHS DMIN N.XMG N.FMG
16 32 27.00 3 5
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
HCNY 27.0 300 EPC0 502 48.51 4.63 4.45 0.13 1.42
111
S 0 502 51.98 8.10 7.92 0.09 1.42
TRY 40.4 64 EPC0 502 50.36 6.48 6.41 0.02 1.41
104
S 0 502 55.36 11.48 11.41 -0.02 1.41
ACCN 96.9 21 EPC0 502 59.15 15.27 14.91 0.30 1.32
95
S 0 503 10.06 26.18 26.54 -0.47 1.32
QUA2 148.6 102 EPC0 503 7.56 23.68 22.78 0.87 1.01 0.1 .15 1.6 69 2.3 93
S 0 503 24.45 40.57 40.55 -0.03 1.19
NCB 155.5 357 EPC0 503 7.64 23.76 23.84 -0.18 1.17
104 2.6 93
S 0 503 26.04 42.16 42.44 -0.45 1.17
BINY 160.0 256 EPC0 503 8.61 24.73 24.51 0.14 1.15
67 2.3 74
S 0 503 27.47 43.59 43.63 -0.18 1.15
ODNJ 170.8 195 EPC0 503 10.14 26.26 26.10 0.13 1.12
74
S 0 503 29.63 45.75 46.46 -0.76 1.09
PAL 175.2 174 EPC0 503 11.02 27.14 26.75 0.38 1.10
74
S 0 503 31.13 47.25 47.61 -0.38 1.10
MDV 175.3 25 EPC0 503 10.87 26.99 26.75 0.22 1.10
73 2.4 74
S 0 503 31.10 47.22 47.61 -0.43 1.10
HNH 194.4 49 EPC1 503 15.98 32.10 29.57 2.50 0.00 0.1 .15 1.7
74
S 1 503 36.29 52.41 52.63 -0.28 0.78
WCNY 200.1 322 EPC0 503 14.56 30.68 30.41 0.23 1.01
74
S 0 503 36.89 53.01 54.13 -1.19 0.17
HRV 210.0 91 EPC0 503 16.27 32.39 31.63 0.73 0.97
53
S 1 503 39.10 55.22 56.30 -1.13 0.20
BRYW 224.8 108 EPC1 503 12.73 28.85 33.45 -4.66 0.00 0.0 .05 1.6
53
S 2 503 42.17 58.29 59.54 -1.36 0.00
LONY 230.2 351 EPC0 503 18.46 34.58 34.13 0.38 0.90
85 2.6 53
S 0 503 45.29 61.41 60.75 0.53 0.90
WES 230.5 94 EPC1 503 18.04 34.16 34.16 -0.01 0.67
53
S 1 503 43.91 60.03 60.80 -0.79 0.63
LBNH 256.0 43 EPC1 503 23.65 39.77 37.31 2.40 0.00
53
S 1 503 53.09 69.21 66.41 2.69 0.00
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Sun Apr 12 03:21:05 2009 MH E N
CRUST MODEL 1: 12. NORTHWEST MAINE CRUSTAL ST
PQ, 121.9KM NE OF QUEBEC
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090412 0648 25.63 47-31.81 70- 6.05 19.28
2.8 2.7 176 0.08 0.8 0.5
NSTA NPHS DMIN N.XMG N.FMG
14 20 17.10 1 7
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
LMQ 17.1 277 EPC0 648 29.94 4.31 4.16 0.08 2.13
75 2.0 137
S 1 648 33.04 7.41 7.40 -0.12 1.60
A11 32.8 193 EPC0 648 31.77 6.14 6.13 0.00 2.12
96 2.3 119
QCQ 122.1 228 EPC1 648 45.22 19.59 19.58 -0.01 1.42
69 2.2 70
S 2 648 59.98 34.35 34.85 -0.54 0.02
MOQ 297.0 215 EPC2 649 9.93 44.30 41.69 2.47 0.00
136 3.0 51
BATG 306.4 93 EPC0 649 8.42 42.79 42.85 -0.12 0.88
169 3.1 51
WVL 335.2 174 EPC3 649 12.13 46.50 46.40 0.09 0.18
51
MNT 352.0 232 EPC2 649 18.49 52.86 48.48 4.36 0.00
51
S 2 649 59.48 93.85 86.29 7.52 0.00
GGN 368.4 135 EPC1 649 16.17 50.54 50.51 0.02 0.39
124 3.0 51
S 2 649 55.27 89.64 89.91 -0.29 0.26
EMMW 374.2 145 EPC1 649 17.49 51.86 51.22 0.63 0.00 0.2 .10 2.8 125 3.0 51
S 2 649 54.52 88.89 91.17 -2.30 0.00
LBNH 392.2 202 EPC1 649 20.57 54.94 53.44 1.44 0.00
51
LMN 446.1 112 EPC1 649 24.95 59.32 60.10 -0.84 0.00
51
LONY 474.3 229 EPC2 649 29.89 64.26 63.58 0.61 0.00
51
NCB 509.1 221 EPC2 649 35.09 69.46 67.88 1.48 0.00
51
SCHQ 843.8 14 EPC2 650 14.33 108.70 109.20 -0.58 0.00
51
S 2 651 36.95 191.32 194.38 -3.20 0.00
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Tue Apr 21 21:42:40 2009 MH E N
CRUST MODEL 1: 2. HUGHES AND LUETGERT NH
NH, 9.5KM N OF FRANKLIN
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090412 1216 14.77 43-31.57 71-38.27 5.73
1.0 1.8 184 0.28 1.4 1.5
NSTA NPHS DMIN N.XMG N.FMG
6 11 6.40 2 3
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
FFD 6.4 192 EPC1 1216 16.22 1.45 1.47 -0.04 1.00
131
HNH 56.0 292 EPC0 1216 24.64 9.87 9.44 0.40 1.30 0.1 .15 1.1
73
S 1 1216 31.17 16.40 16.80 -0.46 0.97
LBNH 82.6 344 EPC0 1216 28.45 13.68 13.76 -0.14 1.26
58 2.0 73
S 2 1216 37.80 23.03 24.49 -1.57 0.00
HRV 113.5 176 EPC0 1216 33.37 18.60 18.73 -0.16 1.20
24 1.5 66
S 1 1216 46.64 31.87 33.34 -1.52 0.00
WES 129.4 168 EPC0 1216 36.01 21.24 21.20 0.03 1.16 0.1 .10 1.0 31 1.7 66
S 2 1216 50.65 35.88 37.74 -1.87 0.00
NCB 214.1 285 EPC1 1216 48.47 33.70 33.05 0.55 0.67
46
S 2 1217 13.70 58.93 58.83 -0.08 0.45
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Fri Apr 17 16:10:20 2009 JE E R
CRUST MODEL 1: 2. HUGHES AND LUETGERT NH
NH, 4.0KM ENE OF TILTON
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090415 1748 38.41 43-27.26 71-32.69
5.97
2.1 2.2 190 0.18 1.7 1.2
NSTA NPHS DMIN N.XMG N.FMG
11 22 9.00 3 9
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
FFD 9.0 282 EPC0 1748 40.28 1.87 1.85 0.00 1.72
84 2.1 122
S 4 1748 41.45 3.04 3.29 -0.29 0.00
HNH 66.1 296 EPC1 1748 49.26 10.85 11.06 -0.24 1.25 0.4 .43
S 4 1748 57.34 18.93 19.69 -0.81 0.00
LBNH 92.5 341 EPC0 1748 53.92 15.51 15.36 0.09 1.61
S 4 1749 4.94 26.53 27.34 -0.92 0.00
HRV 105.3 181 EPC1 1748 55.89 17.48 17.44 0.01 1.18
S 3 1749 10.50 32.09 31.04 0.99 0.00
WES 120.2 171 EPC1 1748 57.93 19.52 19.76 -0.25 1.15 0.8 .36
S 3 1749 12.76 34.35 35.17 -0.84 0.00
MDV 145.1 296 EPC4 1749 1.53 23.12 23.61 -0.51 0.00
S 4 1749 19.24 40.83 42.03 -1.23 0.00
QUA2 146.3 208 EPC1 1749 2.63 24.22 23.80 0.39 1.08 0.2 .25
S 4 1749 18.42 40.01 42.36 -2.41 0.00
BRYW 170.8 179 EPC2 1749 6.15 27.74 27.60 0.08 0.67
S 3 1749 27.28 48.87 49.13 -0.36 0.34
MOQ 214.0 345 EPC4 1749 13.26 34.85 33.02 1.69 0.00
S 4 1749 38.66 60.25 58.78 1.23 0.00
NCB 223.4 286 EPC1 1749 13.66 35.25 34.18 0.97 0.00
S 4 1749 40.24 61.83 60.84 0.81 0.00
LONY 275.8 300 EPC2 1749 15.93 37.52 40.65 -3.20 0.00
S 4 1749 51.24 72.83 72.36 0.35 0.00
2.0 48 1.8 73
88 2.4 73
44 1.9 73
2.5 55 2.1 66
66
1.9
66
43 2.0 66
67 2.4 46
105 2.7 46
89 2.6 46
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Sat Apr 18 09:40:25 2009 JE E N
CRUST MODEL 1: 6. NORTHERN NY AND ADIRONDACKS
NY, 25.1KM E OF SARANAC LAKE
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090418 0043 30.01 44-22.16 73-49.24 4.98
1.3 2.5 78 0.20 0.6 19.7
NSTA NPHS DMIN N.XMG N.FMG
9 15 54.50 1 5
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
NCB 54.5 217 IPC0 43 38.63 8.62 8.51 0.01 1.96
123 2.6 91
S 2 43 45.50 15.49 15.15 0.16 0.98
MDV 65.6 128 EPC1 43 40.14 10.13 10.20 -0.09 1.45
122 2.6 91
S 2 43 48.74 18.73 18.16 0.54 0.97
LONY 66.7 295 EPC1 43 40.37 10.36 10.37 -0.08 1.45
143 2.7 90
S 3 43 49.06 19.05 18.46 0.47 0.48
MNT 126.9 6 S 2 44 4.82 34.81 34.66 0.12 0.88
90
HNH 143.4 120 EPC4 44 2.08 32.07 21.98 10.06 0.00 0.1 .14 1.3
90
S 2 44 9.14 39.13 39.12 -0.05 0.84
LBNH 151.9 94 EPC2 43 49.13 19.12 23.26 -4.20 0.00
77 2.3 90
S 2 44 11.28 41.27 41.40 -0.24 0.83
MOQ 162.2 49 EPC2 43 52.15 22.14 24.82 -2.82 0.00
81 2.4 90
S 3 44 14.49 44.48 44.18 0.05 0.40
TRY 182.5 176 S 2 44 19.32 49.31 49.66 -0.44 0.76
90
FFD 200.7 119 S 2 44 28.15 58.14 54.40 3.71 0.00
54
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Wed Apr 29 17:32:19 2009 JE E N
CRUST MODEL 1: 12. NORTHWEST MAINE CRUSTAL ST
PQ, 18.9KM NE OF QUEBEC
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090429 1937 8.05 46-54.03 71- 6.21 18.34
2.7 3.1 169 0.16 2.0 0.7
NSTA NPHS DMIN N.XMG N.FMG
17 33 18.90 4 9
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
QCQ 18.9 225 EPC0 1937 12.36 4.31 4.25 0.04 2.02
97 2.3 133
S 1 1937 15.56 7.51 7.57 -0.09 1.52
A11 78.6 60 IPC0 1937 21.05 13.00 12.98 0.01 1.93
170 2.9 101
S 1 1937 26.15 18.10 23.10 -5.02 0.00
LMQ 93.0 38 EPC0 1937 23.56 15.51 15.23 0.21 1.89
208 3.1 99
S 1 1937 34.99 26.94 27.11 -0.29 1.42
MOQ 197.7 208 EPC1 1937 37.51 29.46 29.53 -0.21 1.09
51
S 2 1938 2.38 54.33 52.56 1.52 0.00
MNT 248.9 233 EPC4 1937 46.77 38.72 35.85 2.85 0.00
150 3.0 51
S 4 1938 11.66 63.61 63.81 -0.24 0.00
WVL 286.2 156 EPC4 1937 53.81 45.76 40.46 5.29 0.00 0.6 .10 2.9
51
S 4 1938 18.60 70.55 72.02 -1.49 0.00
ORNO 291.8 138 EPC2 1937 49.44 41.39 41.14 0.25 0.46
104 2.8 51
S 2 1938 16.03 67.98 73.23 -5.25 0.00
LBNH 302.6 193 EPC1 1937 50.46 42.41 42.48 -0.13 0.64
182 3.2 51
S 4 1938 26.80 78.75 75.61 3.03 0.00
HNH 367.0 196 EPC4 1937 50.85 42.80 50.43 -7.66 0.00 0.3 .20 2.8
51
S 4 1938 36.36 88.31 89.77 -1.51 0.00
LONY 370.9 229 EPC1 1937 59.48 51.43 50.91 0.45 0.37
272 3.5 51
S 2 1938 37.65 89.60 90.62 -1.14 0.00
FFD 383.7 187 EPC3 1937 57.91 49.86 52.49 -2.65 0.00
51
S 4 1938 55.10 107.05 93.43 13.58 0.00
BATG 385.4 81 S 2 1938 39.80 91.75 93.81 -2.16 0.00
51
GGN 386.5 119 EPC1 1938 0.82 52.77 52.83 -0.07 0.31
51
S 3 1938 40.92 92.87 94.04 -1.19 0.00
NCB 406.7 218 IPC0 1938 3.47 55.42 55.33 -0.01 0.32
227 3.4 51
S 3 1938 45.48 97.43 98.49 -1.24 0.00
LMN 498.7 101 EPC1 1938 14.43 66.38 66.69 -0.37 0.03
173 3.3 51
S 2 1939 4.60 116.55 118.71 -2.26 0.00
WES 502.1 183 EPC4 1938 5.69 57.64 67.11 -9.48 0.00 0.1 .23 2.5
51
S 4 1939 27.70 139.65 119.46 20.18 0.00
QUA2 523.0 192 EPC4 1938 27.65 79.60 69.69 9.88 0.00 0.1 .29 2.6
51
S 4 1939 29.83 141.78 124.05 17.68 0.00
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Fri May 1 14:03:01 2009 DS E N
CRUST MODEL 1: 2. HUGHES AND LUETGERT NH
VT, 2.1 KM SW OF CHELSEA
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090430 1815 50.03 43-58.83 72-28.71 8.10
1.9
122 0.25 0.9 3.1
NSTA NPHS DMIN N.XMG N.FMG
6 11 34.30 0 5
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
HNH 34.3 153 EPC1 1815 56.18 6.15 5.91 0.21 1.06
27 1.2 97
S 2 1816 0.21 10.18 10.52 -0.39 0.71
LBNH 52.8 56 EPC0 1815 59.19 9.16 8.91 0.19 1.40
71 2.1 93
S 1 1816 5.70 15.67 15.86 -0.30 1.05
MDV 56.4 273 EPC1 1815 59.81 9.78 9.50 0.26 1.05
40 1.6 93
S 2 1816 6.65 16.62 16.91 -0.33 0.70
NCB 140.0 271 EPC0 1816 12.63 22.60 22.72 -0.22 1.22
45 2.0 72
S 2 1816 27.96 37.93 40.44 -2.69 0.00
MOQ 149.0 6 S 4 1816 35.60 45.57 42.93 2.39 0.00
LONY 182.3 294 EPC1 1816 19.13 29.10 28.88 0.15 0.81
S 3 1816 40.14 50.11 51.41 -1.42 0.00
72
73 2.4 49
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Wed May 13 16:09:45 2009 JE E N
CRUST MODEL 1: 2. HUGHES AND LUETGERT NH
NH, 11.7KM WSW OF CONWAY
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090512 1504 9.26 43-57.25 71-15.52 8.22
2.1 2.3 149 0.18 0.8 1.1
NSTA NPHS DMIN N.XMG N.FMG
9 16 62.20 1 6
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
LBNH 62.2 301 EPC0 1504 19.71 10.45 10.44 -0.05 2.25
101 2.4 92
S 1 1504 27.98 18.72 18.58 0.03 1.69
FFD 62.5 211 S 2 1504 27.80 18.54 18.67 -0.17 1.12
92
HNH 87.2 252 S 3 1504 35.73 26.47 25.81 0.61 0.55
91
HRV 162.7 189 EPC3 1504 34.30 25.04 26.23 -1.22 0.04
52 2.1 72
S 3 1504 54.06 44.80 46.69 -1.94 0.00
MOQ 170.3 333 EPC1 1504 36.92 27.66 27.38 0.14 1.36
59 2.2 49
S 1 1504 58.07 48.81 48.74 -0.18 1.36
WES 174.4 182 EPC4 1504 19.44 10.18 27.89 17.72 0.00 0.2 .31 2.1 70 2.2 49
S 3 1504 57.66 48.40 49.64 -1.26 0.02
ORNO 232.2 62 EPC1 1504 44.35 35.09 35.02 0.07 1.08
48 2.2 49
S 1 1505 9.52 60.26 62.34 -2.08 0.00
NCB 238.0 272 EPC2 1504 45.98 36.72 35.73 0.89 0.54
49
S 2 1505 16.38 67.12 63.60 3.34 0.00
LONY 275.5 287 EPC3 1504 51.48 42.22 40.37 1.78 0.00
84 2.6 49
S 3 1505 26.03 76.77 71.86 4.79 0.00
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Sun May 17 21:37:42 2009 JE E N
CRUST MODEL 1: 2. HUGHES AND LUETGERT NH
NY, 32.0KM WSW OF ALBANY
DATE ORIGIN
LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090518 0053 29.03 42-32.83 74- 6.94 10.99
2.8 3.2 150 0.54 1.2 1.8
NSTA NPHS DMIN N.XMG N.FMG
14 26 42.20 3 11
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
TRY 42.2 60 IPC0 53 36.69 7.66 7.25 0.36 1.73
105 2.4 100
S 0 53 41.80 12.77 12.90 -0.22 1.73
QUA2 148.2 100 EPC0 53 53.61 24.58 23.85 0.70 1.46 1.9 .15 2.8 192 3.1 72
S 0 54 10.73 41.70 42.45 -0.81 1.46
NCB 158.7 357 IPC0 53 53.89 24.86 25.48 -0.72 1.42
199 3.1 72
S 1 54 12.09 43.06 45.35 -2.47 0.00
BINY 158.9 257 EPC0 53 54.66 25.63 25.51 0.04 1.42
253 3.4 72
S 1 54 14.02 44.99 45.41 -0.56 1.06
HRV 210.2 90 EPC1 54 1.52 32.49 32.01 0.45 0.90
239 3.3 49
S 2 54 25.48 56.45 56.98 -0.58 0.60
BRYW 224.1 107 EPC1 54 3.27 34.24 33.73 0.45 0.85 0.7 .19 2.7 208 3.2 49
S 2 54 28.36 59.33 60.04 -0.82 0.57
FFD 225.4 62 EPC1 54 5.30 36.27 33.89 2.36 0.00
242 3.4 49
S 2 54 30.44 61.41 60.32 1.05 0.54
WES 230.5 93 IPC0 54 4.08 35.05 34.52 0.52 1.10 0.8 .20 2.8 242 3.4 49
S 3 54 29.73 60.70 61.45 -0.76 0.27
LONY 233.3 351 IPC0 54 4.43 35.40 34.87 0.46 1.09
311 3.6 49
S 1 54 31.60 62.57 62.07 0.38 0.81
LBNH 258.6 42 EPC1 54 8.88 39.85 37.98 1.81 0.01
256 3.4 49
S 2 54 39.30 70.27 67.60 2.56 0.00
MNT 330.7 6 EPC1 54 18.71 49.68 46.90 2.76 0.00
137 3.0 49
S 3 54 56.42 87.39 83.48 3.87 0.00
MOQ 341.7 25 EPC2 54 21.19 52.16 48.24 3.78 0.00
49
S 4 55 1.34 92.31 85.87 6.19 0.00
ORNO 511.8 57 S 4 55 46.44 137.41 123.26 14.15 0.00
49
LMQ 630.9 26 S 4 56 17.57 168.54 149.43 18.98 0.00
49
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Thu May 28 09:18:12 2009 MH E N
CRUST MODEL 1: 6. NORTHERN NY AND ADIRONDACKS
ON, 51.6KM NNW OF OTTAWA
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090528 0919 26.03 45-46.49 75-48.07 6.47
2.0 2.9 312 0.05 1.5 1.2
NSTA NPHS DMIN N.XMG N.FMG
4 6 160.20 2 2
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
LONY 160.2 142 IPC1 919 50.61 24.58 24.55 -0.04 1.14 0.4 .10 2.0
90
S 2 920 9.78 43.75 43.70 -0.07 0.76
MNT 172.5 99 S 1 920 13.03 47.00 47.06 -0.10 1.10
90
NCB 235.9 147 IPC0 920 0.90 34.87 34.78 -0.01 1.15 0.2 .15 2.0 130 2.9 54
S 1 920 28.11 62.08 61.91 -0.01 0.86
LBNH 350.0 117 EPC1 920 13.50 47.47 48.86 -1.45 0.00
129 3.0 54
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Wed Jul 8 09:09:22 2009 JE E R
CRUST MODEL 1: 1. SOUTH & COASTAL NEW ENGLAND
MA, 184.2KM SSW OF NANTUCKET
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090612 0825 49.48 39-44.06 70-51.89 5.21
2.5 2.8 292 1.69 43.6 44.6
NSTA NPHS DMIN N.XMG N.FMG
13 21 203.80 2 6
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
TCHZ 203.8 5 EPC2 826 19.68 30.20 31.16 -0.96 1.51
64 2.3 48
S 2 826 42.07 52.59 55.46 -2.87 1.47
BRYW 248.9 348 EPC1 826 27.24 37.76 36.74 0.96 1.86 0.8 .15 2.8 95 2.7 48
S 2 826 55.20 65.72 65.40 0.22 1.24
WES 296.8 353 EPC2 826 30.96 41.48 42.65 -1.18 0.95 0.1 .15 2.1 110 2.8 48
S 2 827 7.14 77.66 75.92 1.73 0.95
HRV 313.3 350 EPC4 826 29.87 40.39 44.68 -4.32 0.00
100 2.7 48
S 2 827 12.20 82.72 79.53 3.14 0.77
BRNY 325.3 307 EPC2 826 35.05 45.57 46.17 -0.65 0.77
48
S 2 827 8.81 79.33 82.18 -2.94 0.74
ODNJ 351.1 297 EPC2 826 46.23 56.75 49.35 7.37 0.00
48
S 2 827 16.76 87.28 87.84 -0.62 0.62
TRY 407.3 326 S 4 827 27.19 97.71 100.20 -2.58 0.00
FFD 420.1 352 EPC2 826 51.28 61.80 57.86 3.92 0.13
S 2 827 39.12 109.64 102.99 6.61 0.00
HNH 456.6 346 S 4 827 44.54 115.06 111.04 3.97 0.00
LBNH 508.1 351 EPC4 827 24.62 95.14 68.73 26.35 0.00
S 4 828 6.68 137.20 122.34 14.75 0.00
MDV 511.3 339 S 4 828 6.94 137.46 123.03 14.39 0.00
NCB 547.2 331 S 4 828 17.95 148.47 130.94 17.36 0.00
LONY 623.6 332 S 4 828 39.56 170.08 147.72 22.23 0.00
48
100 2.9 48
48
110 3.1 48
48
48
48
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Wed Jun 17 23:42:23 2009 JE E N
CRUST MODEL 1: 12. NORTHWEST MAINE CRUSTAL ST
PQ, KAMOURASKA
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090618 0247 52.66 47-33.45 69-53.16 13.95
2.8 2.9 185 0.08 1.3 1.7
NSTA NPHS DMIN N.XMG N.FMG
14 26 33.20 1 8
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
LMQ 33.2 269 EPC0 247 58.63 5.97 5.83 0.07 1.69
146 2.7 110
S 0 248 3.12 10.46 10.38 -0.04 1.69
A11 42.2 215 IPC0 247 59.86 7.20 7.19 0.00 1.68
135 2.6 105
S 4 248 3.92 11.26 12.80 -1.56 0.00
QCQ 136.4 232 EPC2 248 13.46 20.80 21.99 -1.21 0.00
73 2.3 70
S 4 248 29.88 37.22 39.14 -1.96 0.00
PQI 173.0 124 EPC1 248 19.99 27.33 26.92 0.38 0.39
51
S 1 248 40.63 47.97 47.92 0.00 0.99
BATG 290.5 94 EPC1 248 33.91 41.25 41.42 -0.23 0.58
158 3.1 51
S 2 249 4.29 71.63 73.73 -2.20 0.00
MOQ 308.9 217 EPC0 248 36.56 43.90 43.70 0.06 0.69
197 3.3 51
S 4 249 10.78 78.12 77.79 0.08 0.00
GGN 359.5 137 IPC0 248 41.66 49.00 49.94 -0.95 0.00
154 3.1 51
S 3 249 18.39 85.73 88.89 -3.18 0.00
MNT 366.6 233 S 4 249 31.05 98.39 90.46 7.89 0.00
51
EMMW 367.9 148 EPC1 248 43.36 50.70 50.98 -0.29 0.28 0.3 .26 2.8 104 2.8 51
S 4 249 19.94 87.28 90.74 -3.48 0.00
LMN 432.5 114 EPC3 248 50.99 58.33 58.95 -0.68 0.00
51
S 4 249 34.02 101.36 104.93 -3.68 0.00
MDV 471.3 215 S 4 250 1.55 128.89 113.46 15.40 0.00
51
FFD 474.8 198 EPC4 249 12.57 79.91 64.18 15.71 0.00
51
S 4 250 4.46 131.80 114.24 17.52 0.00
LONY 488.6 230 EPC2 249 5.64 72.98 65.87 7.04 0.00
209 3.4 51
S 4 250 2.72 130.06 117.25 12.69 0.00
NCB 522.1 222 EPC4 249 2.52 69.86 70.02 -0.26 0.00
51
S 4 250 12.09 139.43 124.64 14.62 0.00
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Sat Jun 27 14:00:41 2009 MH E N
CRUST MODEL 1: 2. HUGHES AND LUETGERT NH
NH, 11.4KM S OF TILTON
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090627 1557 52.68 43-20.21 71-34.99 8.65
1.5 1.9 183 0.31 4.3 2.0
NSTA NPHS DMIN N.XMG N.FMG
5 10 15.90 4 4
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
FFD 15.9 339 EPC1 1557 55.56 2.88 3.04 -0.18 1.27
44 1.5 115
S 2 1557 58.09 5.41 5.41 -0.04 0.85
HNH 70.1 306 EPC3 1558 7.44 14.76 11.72 3.01 0.00 0.2 .11 1.2
92
S 3 1558 14.15 21.47 20.86 0.56 0.41
HRV 92.3 178 EPC1 1558 8.25 15.57 15.30 0.24 1.19 0.8 .46 1.6 33 1.6 72
S 2 1558 19.35 26.67 27.23 -0.62 0.79
LBNH 104.1 345 EPC0 1558 10.12 17.44 17.12 0.26 1.56 0.1 .22 1.3 93 2.4 72
S 2 1558 22.57 29.89 30.47 -0.69 0.78
WES 107.9 168 EPC1 1558 10.45 17.77 17.72 0.04 1.16 0.3 .10 1.6 41 1.8 72
S 1 1558 22.23 29.55 31.54 -2.01 0.00
HYPOINVERSE 2000 (10/2006 VERSION) RUN ON Sun Jun 28 10:48:44 2009 JE E N
CRUST MODEL 1: 2. HUGHES AND LUETGERT NH
ME, 14.7KM SW OF LIVERMORE FALLS
DATE ORIGIN LAT N LONG W DEPTH MN MC ML GAP RMS ERH ERZ Q
20090628 0629 10.13 44-22.28 70-18.20 15.23
1.3 2.1 159 0.52 3.7 4.1
NSTA NPHS DMIN N.XMG N.FMG
11 18 130.30 1 5
STN DIST AZM RMK HRMN SEC TOBS TCAL RES WT AMX PRX XMAG FMP FMAG ANG
WVL 53.7 70 S 4 629 37.78 27.65 16.23 11.40 0.00
96
LBNH 130.3 265 IPC0 629 31.41 21.28 21.00 0.22 1.95
83 2.4 91
S 1 629 46.80 36.67 37.38 -0.82 1.46
ORNO 143.1 64 EPC4 629 33.89 23.76 22.95 0.81 0.00
26 1.7 70
S 2 629 50.26 40.13 40.85 -0.72 0.94
FFD 147.6 228 EPC1 629 33.76 23.63 23.62 -0.01 1.40
53 2.1 70
S 2 629 51.48 41.35 42.04 -0.73 0.93
HNH 175.4 246 EPC3 629 34.99 24.86 27.29 -2.46 0.00
43 2.0 52
S 2 629 59.26 49.13 48.58 0.50 0.86
EMMW 229.3 79 EPC3 629 44.78 34.65 33.95 0.69 0.35 0.0 .20 1.3 57 2.3 52
S 4 630 10.03 59.90 60.43 -0.55 0.00
MDV 233.8 261 EPC2 629 46.08 35.95 34.51 1.42 0.10
52
S 4 630 7.93 57.80 61.43 -3.66 0.00
WES 235.6 201 S 3 630 14.37 64.24 61.82 2.40 0.00
52
GGN 288.0 72 S 4 630 23.17 73.04 73.32 -0.30 0.00
52
NCB 316.7 264 S 4 630 35.39 85.26 79.64 5.44 0.00
52
BINY 521.1 245 EPC4 629 42.89 32.76 69.98 37.30 0.00
52
S 4 631 24.90 134.77 124.56 10.06 0.00
TABLE 5
MICROEARTHQUAKES AND OTHER NON-LOCATABLE EVENTS
Date
yr/mo/day
Arrival Time
(UTC)
Station
Possible
Location
NESN Station Map
Figure 1: Map of stations of the New England Seismic Network (NESN) in operation during the
period of this report. Also included are other Northeast U.S. and Canadian seismic stations in
operation during this period.
NESN Strong-Motion Station Map
Figure 2: Map of strong-motion stations of the New England Seismic Network (NESN).
NESN Quarterly Seismicity Map
Figure 3: Earthquake epicenters located by the NESN during the period of this report.
NESN Cumulative Seismicity Map
Figure 4: Seismicity for period October, 1975 - June, 2009.
Acknowledgments
Our map database has been developed in-house using ArcView and in part basemap data
provided by ESRI, Inc., USGS GTOPO30 Elevation Data, and TIGER/Line '94, '95, and '97 (US
Census Bureau) spatial data.
References
Chaplin, M.P., Taylor, S.R., and Toksöz, M.N. (1980), A coda length magnitude scale for New
England, Earthquake Notes, 51, 15-22.
Ebel, J.E. (1982), ML measurements for northeastern UnitedStates earthquakes, Bull. Seism.
Soc. Am., 72, 1367-1378.
Rosario, M. (1979), A coda duration magnitude scale for the New EnglandSeismic Network,
Master's Thesis, Boston College, 82 pp.