Seismological bulletin U S Coast and Geodetic Survey - NOAA

SEISMOLOGICAL BULLETIN July, 1963

CONTENTS List of Stations .......................................................................... 1 Station constants ...................................................................... 2 Provisional epicenters .............................................................. 5 Seismogram interpretations .................................................. 16

U. S. DEPARTMENT OF COMMERCE John T. Connor, Secretary

COAST AND GEODETIC SURVEY - WASHINGTON H. Arnold Karo, Director FOR OFFICIAL DISTRIBUTION

National Oceanic and Atmospheric Administration

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SEISMOLOGICAL BULLETIN 1963

The instrumental results of the following stations are tabulated in this report. *Glen Canyon, Ar iz. (GCA) Bureau of Reclamation Guam, M. I. (GUA) WWNSS Honolulu, Hawaii (HON) *Hungry Horse, Mont. (HHM) Bureau of Reclamation Kipapa, Hawaii (KIP) WWNSS **Philadelphia, Pa (PHI) The Franklin Institute **Rapid City, S. D. (RCD) WWNSS South Dakota State School of Mines *Salt Lake City, Utah (SLC) University of Utah San Juan, Puerto Rico (SJP) Sitka, Alaska (SIT) Tucson, Ariz. (TUC) WWNSS Ukiah, Calif. (UKI) International Latitude Observatory Washington, D. C. (WAS)

Albuquerque, New Mexico (ALQ) WWNSS ··Balboa Heights, C. Z. (BHP) WWNSS The Panama Canal Co. 'Boulder City, Nev. (BCN) Bureau of Reclamation *Bozeman, Mont. (SOZ) Montana State College 'Butte, Mont. (BUT) Montana School of Mines 'Chicago, Ill. (CHK) University of Chicago and U. S. Weather Bureau College, Alaska (COL) 'Columbia, S. C. (CSC) University of South Carolina 'Eureka, Nev. (EUR) Eureka Corporation Limited 'Flaming Gorge, Utah (FGU) Bureau of Reclamation

'Indicates a station maintal~ed by a local institution in cooperation with the Coast and Geodetic Survey. "Indicates a station operating on an independent basis. Other stations are observatories of the Coast and Geodetic Survey. WWNSS Indicates the observatories are part of the World-Wide Network of Standard Seismographs. All seismogram interpretations are made or revised at Washington except those for Balboa Heights. Beginning January 1, 1959, the data from the horizontal components of the seismographs at all stations except College, Honolulu, and Tucson will not be published for earthquakes occurring outside the United States. The horizontal instruments will continue in operation and the seismograms for the local and regional earthquakes will be scaled and the data published. Mag. (CGS) is mb of Gutenberg and Richter computed from the P phase only. The magnitude auoted is an average value determined from data forwarded by cooperating Standard stations and ather abservatories. Mag. (PAS), (PAL), (BRK) are as reported by the respect ive stations. All coardinates af epicenters, arigin times and focal depths have been calculated with the use of an electronic computer. The epicenters quoted in this bulletin are those previously reported on the Preliminary Determination of Epicenter cards with some refinement and minar additions. All seismograms are on file in the Coast and Geodetic Survey. Requests for information on seismogram copies of the World-Wide Network observatories should be addressed to: U. S. Department of Commerce Coast and Geodetic Survey Seismology'Div~sion

Washington Science Center Rockville, Maryland

STATICtl AND INSTRUMENTAL CCtlSTANTS (JULY 1963)

Station

Posi tion

Instrument

Albuquerque, N. Me". H. J. Ii rz In Charge

Log cos 9.91367 Lat. 34°56.5' N Long. 106°27.5' W

Std-SP

Foundati on and [Ievation Granite. 1,853 m.

Std-LP

Belboa Heights, C. Z. W. H. Essl i nger In Charge

9.99467 Log cos 8°57'39" N Lat. Long. 7go33'29" W

Std-SP

Basal t. 36 m.

Std-LP

To

Columbia, S. C. C. F. Mercer In Charge

Beginning

Up N Up N

Critical

15rmVmin

Beginning

Up N

130,000

9:1

60rmVmin

Beginning

Up

8,000 8,000 24,000

3:1 11:1 Under

30rmVmin

Beginning

N E Up

N 11.1 E 10.9 Z 1.1

o

15rmVmin

Beginning

AIluv ium glacial drift and lake deposit 500' t hick over gneiss and schist. 1,490 m.

lCollege Outpost J. B. Townshend In Charge

Cr i tical

60rmVmin

Spg, m£

1.18

0.5

8.3 7.6 1.7

1.2

N

[

[

[

[

60rmVmin

()

jjjj (fJ

-
0

z

d~ed

c

~

0

Rhyol i te 30 m. N 8.02 Thick rest ing on ~anite. N 8.0 1,7 m. E 8.0 Z 1.1

9.87251 Log cos Lat. 41°47.3' N Long. 87°36.0' W

McC-R m£ Mass 2.5 kg.

Limestone. 180 m.

N 10 E 10

9.62825 Log cos 64°51.6' N Lat. Long. 147°50.2' W

I-L, Film, Z B, Film, m£

Gran i te schist. 159 m.

Z 1.19 N 1.36 [ 1.40 N 9.5

W, N

Up N

17:1

9.84437 Log cos Lat. 45°40'01" N Long. 111°02'43" "

·College, Alas. J. B. Townshend I n Charge

Beginning,

12,500 12,500 12,500 750 750 750

Bozeman, Mont. A. J. M. Johnson In Charge

Chicago, III. '1/. F. Schmi dt In Charge

60nm/min

0.75 0.75 0.75 100 100 100

Z

B, Paper, Z Mass 100 lb.

17:1

Z 1.0 N 1.0 E 1.0 Z 30 N 30 [ 30

Fractured Monzonite. 776 m.

I-A, N Mass 2g I-L, m£

l:

400,000 400,000 400,000 3,000 3,000 3,000

B, Paper Z Mass 100 lb.

9.84167 Log cos 46°00.8' N Lat. Long. 112°33.8' W

V

0.75 0.75 0.75 100 100 100

9.90806 Log cos 350 58'51" N Let. 0 Long. 114 50'02" '1/

E1JH e, Mont. S. W. Ni Ie In Charge

Time Break Ground Mot ion Trace "Up" Paper Speed Reference Point

Z 1.0 N 1.0 [ 1.0 Z 30 N 30 [ 30

Boulder City, Nev. • V. B. Uehl ing In Charge

I-L, Z

Tg

Ts

Beginning

S

50:1

15rmVmin

Near cr t. Near cr t. Near cr t.

30rmVmin

N

60rmVmin

"

335 335

15:1 15:1

15rmVmin

40,000** 50,000** 50,000 1,000

Near Near Near Near

316

!3n (fJ

c:

:;0

3.8 3.9 0.5

0.45 0.45 0.45 12.0

9.62781 Log cos Lat. 64°53'08" N Long. 147°48'04" W

B, paper, Z

Weathered schist. 183 m.

Z 1.5

0.53

9.91857 Log cos Lat. 34°00' N Long. 81°02' '1/

'I/-L, Z, N'l£

Consol idated sand 150' thick over granite. 94 m.

Z 1.1 N 8.0 [ 8.0

1.6 4.1 4.1

12,000 12,000 50,000

425,000

24,000 13,000 13,000

Up

End

N W

Beginning

Up N

crit. crit. cr it. crit.

15nm/min

Near cr it.

60nm/min

Beginning

Up

Under damped

60rmv'min 30rmVmin

Beginning

Up N E

[

N

&E Mass 500 g.

Cape llay sand and gravel. 5ni,.

N 9.0 E 9.2

0.5 92 3.9 4.1

188,000

0.75 0.75 0.75 100 100 100

12,500 12,500 12,500 750 750 750

0.2

30,000

5.4 4.1

10,000 10,000

7.8 7.4

1,400 1,400

Near Near Near Near

cr it. crit. crit. crit.

6Onm/min 3Onm/min

Beginning

Up Up N E

17:1

6Onm/min

Beginning

Critical

3Onm/min

Beginning

Up N E Up N E

Near crit.

6Onm/min

Beginning

Up

15:1 15:1

2Onm/min

End

S E

(J)

~

~ .-

!::l Z

w

oun a Ion

station

Posi tion

Instr"",,,nt

and Elevation', To

t

1.0 N 1.6 E 1.0 Z 30 N 30 E 30

Shale. 995 m.

Std-SP

Tg

Ts

0.75 0.75 0.75 100 100 100

V

l:

Paper

25,000 17:1 25,000 25,000 750 Cri tical 750 750

SP~

Beginning

15rmv'min

Beginning

15rmv'min

Beginning

N W Up

Beginning

N

Beginning

S E Up

60mVmin

Beginning

Up

30mVmin

Beginning

E Up

Log cos 9.85637 44°04'30" N Lat. Long. 1030 12'30" W

Salt Lake City, Utah A. M. Anderson In Charge

9.87932 Log cos 40°45'55" N Lat. Long. 111 0 50'54" W

McC-R

Mass 2.5 kg. W-L, Z

Bonnevi lie Lake beds. 1,425 m.

San Juan, P. R. ,II. Vazquez In Charge

9.97726 Log cos 18°22.9" N Lat. Long. 66°07.1' W

"~500 g. Mass

Limestone. BO m.

N 9.8 E 9.8 Z 1.05

15.6 10.4 16.8 10.4 0.5 0.6

20:1 1,280 20:1 20,000 Cri tical

30mVmin

"Sitka, Alas. •• E. Osbakken In Charge

9.73544 Log cos 57003'25" N Lat. Long. 135°19'28" W

W,~

Graywacke. 19 m.

N 7.5 E 7.5 Z 1.12

16.5 8.2 13.2 8.2 1.5

1,000 20: 1 1,000 5.5: 1 10,000

15rmv'min

Tucson, Ariz. C. J. Beers In Charge

9.926% Log cos 32°18'35" N Lat. Long. 110°46'56" W

9.92725 Log cos 32°14.8' N Lat. Long. 11()o50.1' W

~

B, Z Mass 500 g. I-L, Z Std-SP

Metamorphics 985 m.

Std-LP

Cal iche or N 8.0 favels 100- E 8.0 00 m. thick. Z 1.0 700 m. N 11.9 E 11.6 Z 1.1 Z 1.5

Ukiah, Calif. L. F. Caouette In Charge

9.88%8 Log cos N Lat. 39°08' W Long 1230 13'

MeG-R, ~ Mass 10 kg. I-L, Z

washington, D. C.

Log cos 9.89117 Lat. 3~53'33" N Long. 77 01'5~1 W

I-L, Z Visible

Recent allu-

visi~le

Z 1.0 N 1.0 E 1.0 Z 30 'N 30 E 30

I-A, ~ Mass 2.3 g. B, Z (LP) (SP)

Alluvium 180 m. deep. 199 m.

"These stations operate

'N 4.5 E 4.9 Z 1.2

recorder

vium on

schistose granite. 0 m.

1.56 0.99 12,300 17: 1 1.37 0.99 12,700 17:1 1.72 0.96 23,000 17:1

0.75 0.75 0.75 100 100 100

200,000 17:1 200,000 200,000 1,500 Critical 1,500 1,500

60n11\1min

60n11\1min

60n11\1min

•Up N N

E S E Up Up

Beginning

0,.236

30mVmin

1.4

75 Near cri t. 75 24,000

60mv'min

S W Up

10,000

30mv'min

Up

recording seismographs of Coast and Geodetic Survey design similar to the one at Washington.

""Magnifications for film records are stated as read using an 8 power viewer. B-Benioff Moving Coil, B-VR - Benioff Variable Reluctance,' - Wenner, McC-R - McComb-Romberg, I-A - Wood-Anderson M-SMilne-Shaw, HTL - Houston Technical Laboratory, Spg - Sprengnether, Std - World-Wide Network Standardized Seismogr~ph, I-L - Wilson-Lamison. lThe seismometer is in a vault about Zl miles northeast of the main station. The signal is carried by cable to the main vault wher,e it is fed into a galvanometer and recorded on photographic paper.

> t::I

8'"

6 (5

~

:D

Beginning

466 Crit ical 457 Cd tical 50,000 Near crit. 50,000

4.0 Pen 0.5

Q

Ja

....V> z

30mVmin

77

...

Up N E Up N E

60n11\1min

Rapid City, S. Oak. Eo L. Tullis In' Charge

Std-LP

Gr ound Mot i on Time Break Trace "Up" Reference Point

30n11\1min 60mVmin

< ,."

-
10 05.5

FGU lIP)

06 10 25.0

•

23 08 13.1 09 37.6 10 05.3

JUL 27 FGU EP IS

12 01 01.9

JUL 27 HHM EP

12 01 46.8 02 14.8

JUL 27 SLe EIP) EL

JUL 27 H-16 47 03.7 35.95 102.7' 43 !il.l

JUL 31 H-16 20 20.0 22.55 176.811' h ABOUT 2671('" TUC IP

16 32 19.0

EUR EP

16 32 21.3

GCA EIPI

16 32 30.1

ALQ IP

16 32 40.9

COL IP

16 32 SO.4

JUL 31 BHP EP E5

16 22 20.0 23 S2.0

JUL 31 BHP IP IS

17 11 21.0 12 03.0

JUL 31 H-18 33 28.7 09.2N 082 ... 11' h ABOUT 033K'"

SEISMOLOGICAL BULLETIN Oat. and Statton

Pha •• (GeT)

h

m

Dot. and Station

•

BHP IP IS

18 34 12.0 34 55.0

JUL 31 SlC EP IS

19 03 46.3 04 13.3

FGU IP

19 04 19.2

JUl 31 BOZ elPI

19 18 57.0

JUl 31 BOZ EP

ES FGU EIP)

19 54 22.5 54 42.5

19 55 06.2

JUl 31 H-21 53 03.6 43.1N 088.3E h ABOUT 045KM

COL EIPI

22

JUL 31 FGU iP /S

22 38 38.8 38 52.6

JUL 31 ALQ EIP)

22 58 45.0

JUL 31 BOZ EP

23 54 01.7

O~

32.0

37

Pha••

Do'. and

Phase

Dat. and

Pha ••

(GeT)

Station

(GCT)

Station

(Gcn

h

m

•

h

III

•

h

m

•