FEB. 8 i967. Seismograph Report XXXVII 1 January ID Oeto:ber Code - SCP

Transcription

1 / GE 5(j2 P't A3 no. 3'1 FEB 8 i967 THE PENNSYLVANIA STATE UNIVERSITY MINERAL INDUSTRIES EXPERIMENT STATION DEPARTMENT OF GEOLOGY AND GEOPHYSICS GEOPHYSICAL LABORATORY Project B-13 Seismograph Report XXXVII 1 January ID Oeto:ber 1966 Code - SCP B. F. Howell, Jr., Director E. K. Graham, Graduate Assistant R. H. Merkel, Graduate Assistant D. Siskind, Gradute Assistant S, K. Yiu, Graduate Assistant Locality: The station is located n a vault in the College of' Mineral Industries storage shed. The instruments are mounted on a concrete pillar separated from the foundations and set on subsoil. The geographic coordinates are: % = " N. = 77 52' 9.8" W H = 353 m The geocentric coordiates are: % 4 37' N = 77 52' W Height above sphere of equal volume = km Please address all communications to: Geophysical Labor?,tory 27 Mineral Sciences Building University Park, Pennsylvania, U.S.A., 168oa UNIVERSITY OF ARKANSA LIBRARY

2 - _c"':"'= ::,_:;:;;l The State College Observatory is equipped with worldwide standard VELA-Uniform instruments. These were in continuous operation throughout the period covered by this report except for interruptions to change records and to make repairs and adjustments. The instrument calibrations were checked May 14-23, 1965 and found to be: Seismo- Galvanometer meter Period Period Damping Component {sec} (sec ratio Sens i t_i vi ty SPN , SPE , SPZ.995 o , LPN Critical 1,5 LPE 15.4 critical 1,5 LPZ 15. critical 1,5 The instruments were last calibrated on September 17-24, The constants were: SPN , SPE , SPZ , LPN critical 1,5 LPE critical 1,5 LPZ critical 1,5 Events marked "LOCAL" and "BLAST" are short-duration, high-frequency events with P-S times of 2 seconds or less.

3 - 2 - Most of these are quarry blasts in Pennsylvania and adjoining states. Only the larger of the many such events recorded daily are reported, and many of the reported events not so labe1ed are of this nature. The time is controlled by a crystal clock which is checked daily against radio station WWV. recorded automatically on the SPN component. Time signals are The recorded seismograms are filed with the u. S. Coast and Geodetic Survey in Washington, D. c. Copies of individual seismograms may be obtained from them. The list which follows shows the earliest observed motion of each earthquake recorded and lists the components on which this earthquake is observable. Where readable, the direction of first motion is indicated by the following symbols: N and S = North and South E and W = East and West U and D = Up and Down i e means readable to.1 sec. on at least 1 trace means not readable to.1 sec. RF means record failure. No seismogram exists for this earthquake on this component. means earthquake recorded by this component, direction of first motion not read (no implication that it is unreadabe) means seismogram exists but body waves not strongly or not clearly recorded. Surface waves may be clearly recorded. On October 2, 1966 the instrments were moved.to a new location. Recordings beginning on Oct. 26 will be reported in our next bulletin.. 'I ;i '/ f I', I,'I' ;t,' '.i,,, I, 1.? I>' /'!,t11'\ ) y >,I:: ( 1 ;, II\, I

4 ,_ / GMT OF TYPE OBSERVABLE ON SCP PAGE- 1 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 1 JAN I N - 1 JAN IP s u s E u : : 1 JAN E - - LOCAL._.,' 2 JAN IP u - 2 JAN =56 E 3 JAN =5.7 I D BLAST 3 JAN 66 21= I u LOCAL 4 JAN E LOCAL._ JAN I N u 4 JAN E LOCAL 5 JAN E LOCAL 5 JAN =11 E 5 JAN 66 21=515.2 I D = LOCAL 5 JAN l I N w LOCAL 6 JAN I u 6 JAN E LOCAL 1 JAN IP N w u., \_) 8 JAN I LOCAL 8 JAN =8 E LOCAL 8 JAN E LOCAL 8 JAN I N LOCAL 9 JAN E LOCAL 1 JAN E LOCAL 1 JAN I u LOCAL 1 JAN I s u 11 JAN E - - LOCAL 11 JAN l I 11 JAN I LOCAL 12 JAN 66 12=46- E \, ',I 12 JAN =26 E 12 JAN 66 22= I 13 JAN IP N u ' 13 JAN =17. IP s E u '.,,_,.,' 13 JAN I E D --., 14 JAN E 14 JAN E - - = LOCAL 15 JAN 66 12=8-17.l IP u 15 JAN 66 12=22=21 E 15 JAN I u LOCAL 15 JAN 66 18=44=5. I N w u LOCAL 15 JAN 66 19= I N w u LOCAL 15 JAN I u LOCAL 16 JAN IP u 16 JAN 66 19=36o2 I N w 16 JAN I u 17 JAN 66 15=-4.7 I N w u = - - LOCAL 17 JAN 66 18=44=1.5 I s E u LOCAL 17 JAN 66 23=28=41 E LOCAL 18 JAN 66 15=1257 E LOCAL 18 JAN =26.5 I N w ""' - - BLAST

5 GMT OF TYPE OBSERVABLE ON SCP PAGE- 2 DATE MOTION ONSET NS EW Z NS EW l REMARKS 18 JAN I u - 18 JAN E LOCAL 18 JAN E. - - LOCAL 18 JAN I u LOCAL 19 JAN E LOCAL 19 JAN BLAST 19 JAN I N w D BLAST 19 JAN E - - LOCAL 19 JAN E LOCAL 19 JAN I N w u BLAST 19 JAN l I s w u BLAST 2 JAN IP N u - 2 JAN E BLAST 2 JAN E 2 JAN E LOCAL 2 JAN E LOCAL 2 JAN I s u. - - BLAST 2 JAN E LOCAL 4 JAN E LOCAL 21 JAN E 21 JAN E LOCAL 21 JAN E LOCAL 21 JAN E LOCAL 21 JAN E LOCAL 21 JAN E LOCAL 21 JAN I u LOCAL 22 JAN IP u 22 JAN IP N u 22 JAN E LOCAL 22 JAN I N E u - 2 JAN u - 23 JAN IP u 24 JAN E LOCAL 25 JAN E 25 JAN E 25 JAN E LOCAL 25 JAN E LOCAL 25 JAN E LOCAL 25 JAN E 25 JAN E LOCAL 2s JAN a-os.o I D LOCAL 26 JAN E LOCAL 26 JAN E LOCAL 26 JAN E LOCAL 26 JAN E LOCAL 27 JAN E RF LOCAL 27 JAN E Rf LOCAL 21 JAN E Rf Rf - - LOCAL 28 JAN E JAN E RF LOCAL J.

6 GMT OF TYPE OBSERVABLE ON SCP PAGE- 3 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 28 JAN E LOCAL 28 JAN I u BLAST 28 JAN IP u 29 JAN =6.9 IP u 29 JAN 66 19=15-55 E LOCAL 29 JAN 66 2=33=39 E LOCAL 31 JAN =27 E RF = - - LOCAL 1 FEB 66 7=3458 E RF RF - 2 FEB 66 19=37=28 E RF - - = LOCAL 2 FEB 66 21=2=29 E RF - - = LOCAL 2 FEB 66 21= I s RF U LOCAL 2 FEB E RF LOCAL 3 FEB IP RF RF 3 FEB =57.l IP RF RF U 3 FEB E RF LOCAL 3 FEB I RF LOCAL 3 FEB 66 21=16-57 E RF D LOCAL 3 FEB I RF U LOCAL 4 FEB E LOCAL 4 FEB E LOCAL \. > 4 FEB =8.8 I LOCAL 5 FEB E LOCAL 5 FEB IP s E 5 FEB I u 5 FEB 66 13=35=21 E = - - LOCAL 5 FEB IP s w u 5 FEB 66 22= IP s w u 5 FEB IP N E u 6 FEB E 6 FEB E LOCAL 6 FEB E - - = LOCAL 6 FEB IP N E u - 7 FES E 7 FEB =46 E LOCAL 7 FEB I u LOCAL 1 FEB E LOCAL 7 F E LOCAL 7 FEB I N w 7 FEB E FEB =54 E LOCAL 8 FEB E \_j 8 FEB E LOCAL 8 FEB E LOCAL 8 FEB 66 22=27=29.5 I E u LOCAL 8 FEB I u BLAST 9 FEB 66 1=1-19 E 9 FEB E 9 FEB 66 7=38=26.l IP E u 9 FEB I u 9 FEB IP u J!!aj _ -""'>----:i= cd-l --

7 GMT OF TYPE OBSERVABLE ON SCP PAGE- 4 DATE MOTION ONSET NS EW l NS EW l REMARKS 9 FEB E Rf 9 FEB E Rf LOCAL 9 FEB E RF 1 FEB I RF 1 FEB E Rf 1 FEB E RF 1 FEB E RF LOCAL 1 FEB E RF LOCAL 1 FEB E RF LOCAL 1 FEB E RF 1 FEB E RF 11 FEB E RF t.ocal 11 FEB I RF u LOCAL 11 FEB I - 12 FEB E RF 12 FEB I s w u BLAST 12 FEB E LOCAL 12 FEB I s E u LOCAL 13 FEB l IP s E u - 13 FEB E 13 FEB EP 13 FEB E 13 FEB E FEB E 14 FEB E - - LOCAL 14 FEB I u - 14 FEB I N w u - 15 FEB E LOCAL 15 FEB I s w - 15 FEB E 16 FEB EP 16 FEB E 16 FEB E RF LOCAL 16 FEB I RF U LOCAL 17 FEB IP RF U 17 FEB E LOCAL 18 FEB E LOCAL 18 FEB I u LOCAL 18 FEB I s w u 19 FEB E 19 FEB 66 2=2-12 E 19 FEB e 2 FEB l I s w u 21 FEB E FEB e 21 FEB E 21 FEB E LOCAi.,. 21 FEB 66 22= I 22 FEB IP N u 22 FEB I u LOCAL 'ii I',,

8 GMT OF TYPE OBSERVABLE ON SCP PAGE- 5 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 22 FEB =36 E 22 FEB E i 23 FEB ', E LOCAL 23 FEB 66 16=4-8 E LOCAL 23 FEB I RF D 24 FEB 66 15=16=54 E RF 24 FEB I RF u LOCAL 24 FEB =38.3 I RF D 24 FEB E RF LOCAL 24 FEB E RF 24 FEB I RF D 25 FEB E RF 25 FEB E RF LOCAL 25 FEB E. 25 FEB 66 19=44-28 E 25 FEB =12.3 I - BLAST 25 FEB I - - D - BLAST '"'< r. ) 25 FEB E FEB 66 = IP N u 26 FEB 66 oa-1 E 26 FEB E 26 FEB I D 27 FEB 66 16= IP u 21 FEB =4. IP u 28 FEB IP u 28 FEB E 28 FEB E BLAST 28 FEB I u LOCAL 28 FEB =32 E LOCAL 28 FEB E LOCAL 28 FEB I N 28 FEB E Ol MAR I D 1 MAR =16. I u LOCAL 2 MAR I u - 2 MAR E 2 MAR E LOCAL 3 MAR IP N u : --) 3 MAR I N w u LOCAL 3 MAR E LOCAL 3 MAR I N E u BLAST 3 MAR E LOCAL 3 MAR I u LOCAL 3 MAR I s u LAST 3 MAR I N w BLAST 3 MAR 66 22=54 54 E LOCAL 4 MAR I s E u BLAST ".,r/ I 4 MAR I N E - - LOCAL 4 MAR E LOCAL 4 MAR E LOCAL

9 GMT Of TYPE OBSERVABLE ON SCP PAGE- 6 DATE MOTION ONSET NS EW l NS EW 'Z REMARKS 5 MAR E MAR E MAR E 5 MAR I N w D LOCAL 5 MAR I s LOCAL 5 MAR I N E u LOCAL 5 MAR E 6 MAR E 6 MAR E MAR IP - 1 MAR E AR "'"' E MAR E LOCAL 1 MAR E 1 MAR E MAR E LOCAL.. 7 MAR E - - -, 1 MAR os13 E 7 MAR E LOCAL 8 MAR E MAR I 8 MAR E 8 MAR I N w u LOCAL 8 MAR IP N E u 8 MAR I N w u LOCAL 9 MAR , I N E u. - - LOCAL 9 MAR E. - - LOCAL 9 MAR E LOCAL 9 AR I N u BLAST 9 MAR IP N w u - 1 MAR E 11 MAR IP N - u 11 MAR 66 1= IP N E - 11 MAR E 12 MAR IP s u 12 MAR E LOCAL 13 MAR I u 14 AR I N E u LOCAL 14 MAR I Rf "':" - 14 MAR I Rf - - LOCAL 14 MAR I RF LOCAL 14 MAR I RF D LOCAL 14 MAR I Rf u LOCAL 15 MAR I RF u BLAST 15 MAR E RF 15 MAR I LOCAL 15 MAR l I N u 15 MAR E LOCAL 15 MAR E 15 MAR I u. - - LOCAL l

10 GMT OF TYPE OBSERVABLE ON SCP PAGE- 7 DATE MOTION ONSET NS EW Z NS EW Z REMARKS, 16 MAR E MAR =36 E 16 MAR 66 15=27-57 E. - - LOCAL 16 MAR E 16 MAR I N E ) 16 MAR I N w LOCAL 16 MAR 66 21=41=49.7 I s u. - - LOCAL 16 MAR 66 22=15ql7 E 16 MAR E LOCAL 17 MAR 66 11=53=12.3 IP u 17 MAR 66 16= IP 17 MAR 66 18=5=44.2 I N w u 17 MAR l I N w. - - BLAST 17 MAR 66 21=41=53 E 17 MAR I N w u BLAST 18 MAR 66 14=55=51.5 I s E 18 MAR 66 21= I s u.,. - - BLAST \,,J 18 MAR 66 21=33=19.7 I D BLAST 18 MAR I u BLAST 19 MAR 66 15=16=1.4 I u - - BLAST,,_,' 2 MAR 66 2=-8 E 2 MAR IP N E u 2 MAR IP u 2 MAR = E - = = 21 MAR 66 16= I s u LOCAL 21 MAR 66 2=56=19.3 I u 21 MAR 66 21=3=53 E 21 MAR E 21 MAR =58.5 I 22 MAR =26.3 IP u 22 MAR =2 E 22 MAR I u BLAST 22 MAR I D BLAST 22 MAR =45.3 I u BLAST 23 MAR 66 =22- E 23 MAR IP s E 23 MAR 66 16=8=3 E 23 MAR E BLAST 23 MAR I D BLAST 23 MAR I BLAST 23 MAR E BLAST 24 MAR E MAR E LOCAL 24 MAR E LOCAL 24 MAR 66 2=22=7.4 I u 24 MAR E LOCAL 24 MAR I u LOCAL 24 MAR E LOCAL 25 MAR I u LOCAL 25 MAR E LOCAL

11 GMT OF TYPE OBSERVABLE ON SCP PAGE- 8 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 25 MAR I u LOCAL 25 MAR I u LOCAL 26 MAR E MAR E 26 MAR I ' LOCAL 26 MAR I u LOCAL 26 MAR I u LOCAL 26 MAR I. 21 MAR IP N u 28 MAR I u 28 MAR E RF 28 MAR E - - ' - LOCAL 28 MAR I BLAST 28 MAR E LOCAL 29 MAR E - -. LOCAL 29 MAR I u. - - BLAST 29 MAR e LOCAL 29 MAR E - 29 AR I u LOCAL 29 MAR E LOCAL 3 MAR IP w u RF 3 MAR E 3 MAR I u LOCAL 3 MAR I u LOCAL 3 MAR e3 I LOCAL 31 MAR E MAR E LOCAL 31 MAR I u LOCAL 31 MAR E 31 MAR I u BLAST 31 MAR I u BLAST 1 APR E 1 APR E. 2 APR IP s E 2 APR 66 2=17-9 E 2 APR I u LOCAL 2 APR E 3 APR E - 4 APR E 4 APR IP N u 4 APR 66 2= I u LOCAL 4 APR E 5 APR I u LOCAL 5 APR l I u LOCAL 5 APR I u 5 APR 66 22=54-3 E 6 APR E - - BLAST 6 APR E APR E LOCAL 6 APR I

12 >-,. GMT OF TYPE OBSERVABLE ON SCP PAGE- 9 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 6 APR E 6 APR 66 23=3=38 E LOCAL 1 APR E LOCAL 7 PR I LOCAL 1 PR 66 18= I u LOCAL 1 APR =21 E LOCAL 8 APR 66 1=58=3 IP s w u s u 8 APR 66 5=36-25 E 8 APR E 8 APR 66 9=27-51 E. 8 APR 66 22= IP 8 APR 66 23= IP u 9 APR 66 2=4 46. IP N u. 9 APR I u ' 9 APR 66 19=4.5 JP "-, _./,_.. \ 9 APR 66 2=17=23.5 IP 1 APR E 1 APR =34.3 IP E u 1 APR a.7 I u 11 APR 66 15=853.4 I 11 APR 66 17= IP u 11 APR 66 18= I u - BLAST 11 APR 66 2=31=4.8 I BLAST 11 APR I u BLAST 11 APR l IP N E u 12 APR 66 16=35=34 E 12 APR IP N u 13 APR IP N u 13 APR =7 E 13 PR I u LOCAL 13 APR =8 E 14 APR I,'"""'" 14 APR E 14 APR 66 16= I u LOCAL 14 PR 66 17= I u LOCAL \.,, ) 14 APR E 14 PR 66 21=19-3 E 15 APR 66 13tj27-4 E 16 APR 66 1-,36-5. IP N w u u 16 APR E 16 APR 66 11=37=.8 IP u 16 APR 66 17=8=6.7 I N w LOCAL 16 APR 66 19=12-14 E., 16 APR 66 2=31-52 E. LOCAL 16 APR 66 2= I N w u LOCAL 16 APR I N u 16 APR =28 E "' 17 APR =41 E,._. 18 APR I s E u LOCAL 18 APR 66 16= I u LOCAL /r".,._ \._.,). ( ) -

13 GMT OF TYPE OBSERVABLE ON SCP PAGE- 1 DATE MOTION ONSET NS EW Z NS EW l REMARKS 18 APR E - 18 APR I LOCAL 18 APR E 19 APR I LOCAL 19 APR E 19 APR E LOCAL 19 APR 66 2= I u BLAST 19 APR E LOCAL 19 APR E LOCAL 2 APR E 2 APR l u LOCAL 2 APR E LOCAL 2 APR E 21 APR E 21 APR E LOCAL 21 PR E. - - LOCAi,. 21 APR E LOCAL 22 APR E. 22 APR I - 22 APR I u 22 APR E 22 APR IP N w D 23 PR EP 23 APR E 23 APR IP u 23 APR I u LOCAL 23 APR I u LOCAL 23 APR E LOCAL 23 APR E LOCAL 23 4PR E - LOCAL 24 APR E LOCAL 25 APR I u LOCAL 26 APR I u LOCAL 26 APR I u LOCAL 26.PR I LOCAL 26 APR E LOCAL 26 APR I u - - LOCAL 27 APR E 27 APR I u LOCAL 28 APR E APR l IP u 29 APR E 29 APR I u - - LOCAL 3 APR E 3 APR E 3 APR I. - - LOCAL 3 APR E 1 MAY IP s E s 2 MAY E MAY I u LOCAL

14 GMT Of TYPE OBSERVABLE ON SCP PAGE- 11 DATE MOTION ONSET NS EW Z NS EW Z REMARKS ( 4 MAY 66 18=19=55. I LOCAL 4 MAY 66 2=5=28Q6 I u LOCAL 4 MAY 66 23=49=37.6 I u LOCAL 5 MAY 66 2=26=24. I D LOCAL 5 MAY 66 14=5= E - = - 5 MAY 66 2=44=.2 I - = - BLAST 5 MAY 66 22=49=156 I u BLAST 6 MAY 66 14=28=3.l I u = - - BLAST 7 MAY 66 16=43=58.5 I RF Rf U RF RF - LOCAL 7 MAY 66 18=58=7 E RF RF RF RF - LOCAL 9 MAY 66 =54=52. IP Rf Rf U Rf 9 MAY 66 2=26=49 E RF LOCAL 1 MAY 66 14=53=6 E RF LOCAL 1 MAY 66 21=22=17 E. RF LOCAL 1 MAY 66 21=59=23.3 I RF LOCAL 11 MAY 66 14=29=38.l IP RF U 11 MAY 66 17=13=3 E LOCAL 11 MAY 66 18=47=46.7 I D 11 MAY 66 19=45=29 E LOCAL 11 MAY 66 2=23=52 E LOCAL 11 MAY 66 21=51=38o IP u 12 MAY =31 E LOCAL 12 MAY 66 18=54d39.3 I D LOCAL 13 MAY 66 13=36=8.8 IP s D 13 MAY 66 19=128 E RF - LOCAL - LOCAL 14 MAY 66 15=36=31.3 I RF LOCAL \ J 14 MAY I D = - ---, -., \._j 14 MAY =6.3 I 15 MAY =45o7 IP u u 16 MAY 66 3=5=35 E 16 MAY 66 18=26=13 E = = = LOCAL 16 MAY 66 2=52=11.4 I D = - - BLAST 17 MAY 66 =45=21 E LOCAL 17 MAY =47.5 I N D 17 MAY 66 18=59=37 E = - = LOCAL 17 MAY E - = - LOCAL 17 MAY I u LOCAL 17 MAY 66 2=25=44.6 I D - - = LOCAL 17 MAY 66 21=47=56.9 I u LOCAL 17 MAY I u LOCAL 18 MAY I D LOCAL 18 MAY 66 7=38=17.4 I D N 18 MAY 66 15=2=56 E LOCAL 18 MAY 66 16=44-59 E 18 MAY =25.4 I D = = LOCAL 18 MAY =55. i l\j E u "'= "'"' BLAST 18 MAY 66 22=6=35.6 I N w D - - = BLAST 19 MAY =6ol IP N E u u 19 MAY 66 14=2=36.2 IP E u 19 MAY 66 15=13=5 E -

15 GMT OF TYPE OBSERVABLE ON SCP PAGE- 12 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 19 MAY I u LOCAL 19 MAY I u LOCAL 19 MAY I D LOCAL 19 MAY E BLAST 2 MAY E 2 MAY IP u 2 MAY I u MAY I N u BLAST 21 MAY E LOCAL 21 MAY I N D BLAST 21 MAY I s E u LOCAL 22 MAY IP s w u 22 MAY E LOCAL 22 MAY E 23 MAY I u 23 MAY I u. - - LOCAL 23 MAY E LOCAL 23 MAY I LOCAL 23 MAY I D LOCAL 24 MAY I - E D 24 MAY E 24 MAY E 24 MAY I N E u LOCAL 24 MAY I s u LOCAL 24 MAY I N w u BLAST 25 MAY E 25 MAY IP D 25 MAY E 25 MAY E 25 MAY I BLAST 25 MAY I s u. 26 MAY E 26 MAY E 26 MAY I N E D LOCAL 26 MAY I N E D. - - LOCAL 26 MAY I s E u BLAST 26 MAY E LOCAL 26 MAY I N D BLAST 26 MAY I N w BLAST 26 MAY E LOCAL 26 MAY E - - BLAST 27 MAY E LOCAL 27 MAY E LOCAL 27 MAY I u LOCAL 27 MAY I u BLAST 27 MAY I u - -. LOCAL 21 MAY I u LOCAL 27 MAY I BLAST 27 MAY I u BLAST 28 MAY E LOCAL

16 LOCAL,,., GMT OF TYPE OBSERVABLE ON SCP PAGE= 13 DATE MOTION ONSET NS EW l NS EW l REMARKS 28 MAY 66 18=1=56 E LOCAL 28 MAY I u - = - \ ) 28 MAY 66 23==51.8 I u - -, / 29 MAY 66 2=83 E MAY 66 3=16-11$3 IP u 3 MAi E ii 3 MAY 66 2=19=l5o5 I D 31 MAY 66 4=34=2 E LOCAL 31 MAY 66 6=19=5.4 I s w D 31 MAY 66 15=5-45 E LOCAL 31 MAY =38.2 I s w D - LOCAL 31 MAY 66 19=56-4 E = - - LOCAL - BLAST 31 MAY 66 2=35=43o5 I D = - 1 JNE 66 2=44=54.3 IP u 1 JNE 66 13=42- E - = = 1 JNE E LOCAL 1 JNE 66 17=8-56. I N w D LOCAL 1 JNE 66 18=23=54.l I u 1 JNE =9. I u BLAST 1 JNE E 1 JNE 66 2=34=5.8 I u BLAST 1 JNE 66 2= I BLAST 2 JNE IP N w D N w D 2 JNE 66 7=26=49 E 2 JNE =45. I E u 2 JNE IP s w u 2 JNE 66 15=58=27.6 I N w D LOCAL 2 JNE 66 17=36=21 E = - - BLAST 2 JNE =9 E 2 JNE 66 2=38-53 E LOCAL 2 JNE 66 22=21=.4 I u 2 JNE 66 22=57=1 E 3 JNE 66 14=6=8.4 IP s E u,. 2 JNE E LOCAL \. } ',,' 3 JNE I N w u BLAST 3 JNE E LOCAL 3 JNE 66 19=48=26.8 I s u BLAST 3 JNE 66 19=54=6 E 3 JNE 66 2=5=7 E LOCAL 3 JNE 66 21=7=53o2 I s E u BLAST 3 JNE 66 21= I N w u = - - BLAST 3 JNE I s w u 4 JNE 66 6=28=2le IP s w u 4 JNE 66 17=18=3 E 4 JNE 66 18==38. I w D LOCAL 4 JNE E 5 JNE 66 ==36.5 IP E u u 6 JNE IP s w u s w u 6 JNE =41.9 I u - = - BLAST 6 JNE 66 2=3124. I BLAST _ '

17 GMT OF TYPE OBSERVABLE ON SCP PAGE- 14 DATE MOTION ONSET NS EW Z NS ew z REMARKS 6 JNE l I u 6 JNE I u. - - BLAST 7 JUN IP N E u N u 1 JUN 66 12= I u 7 JUN IP N E u 7 JUN IP s u 7 JUN I JUN I u BLAST 7 JUN E - - LOCAL 8 JUN I - 8 JUN E LOCAL 8 JUN I u 8 JUN E 8 JUN E LOCAL 8 JUN I - LOCAL 8 JUN I - - BLAST 8 JUN E. - - LOCAL 9 JUN E 9 JUN E LOCAL 9 JUN I u LOCAL 9 JUN IP 1 JUN I u 1 JUN I s u 1 JUN I u JUN IP N E u ll JUN I 11 JUN I D LOCAL 11 JUN E LOCAL 12 JUN I LOCAL 13 JUN E JUN I s E u LOCAL 13 JUN E LOCAL 13 JUN IP E u 13 JUN I u 13 JUN I u 13 JUN I u LOCAL 13 JUN I N BLAST 13 JUN I u - 13 JUN I N s u LOCAL 14 JUN E LOCAL 14 JUN I u '!" - - LOCAL 14 JUN E., - - LOCAL 14 JUN I LOCAL 14 JUN I u. - - BLAST 14 JUN I u LOCAL 15 JUN IP 15 JUN I u 15 JUN E LOCAL 15 JUN E 15 JUN 66 2= I BLAST J

18 GMT OF TYPE OBSERVABLE ON SCP PAGE- 15 DATE MOTION ONSET NS EW Z NS EW l REMARKS 15 JUN E LOCAL 16 JUN I u \j 16 JUN l I - -. LOCAL 16 JUN E LOCAL 16 JUN E LOCAL 16 JUN I 16 JUN E 17 JUN E 17 JUN I u 17 JUN t I u 17 JUN E LOCAL 17 JUN E 17 JUN I D BLAST 17 JUN E LOCAL 18 JUN I 18 JUN E LOCAL 18 JUN I LOCAL 19 JUN E 19 JUN E ---"' 19 JUN IP N E u - 19 JUN IP N E u. 2 JUN E 2 JUN I s w u. LOCAL (_j 2 JUN I N w u - LOCAL 2 JUN E.,. LOCAL 2 JUN E LOCAL --/ 2., JUN I s E u., - - LOCAL 21 JUN E 21 JUN E - - 1"' 21 JUN E 21 JUN I N u BLAST 21 JUN I s D BLAST 21 JUN l IP.N w u 22 JUN IP s u 22 JUN IP N w D 22 JUN E JUN E -. - LOCAL 22 JUN E 22 JUN E 22 JUN I u BLAST 22 JUN IP N E u N e u 22 JUN I u LOCAL 23 JUN IP s E 23 JUN E LOCAL - 23 JUN E,;a,,, ' '-' 23 JUN I LOCAL 24 JUN E - 24 JUN I N E D LOCAL 24 JUN I N w LOCAL 25 JUN E LOCAL

19 GMT OF TYPE OBSERVABLE ON SCP PAGE- 16 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 25 JUN IP N E u 25 JUN I u 25 JUN E - -. LOCAL 21 JUN I 27 JUN I N BLAST 21 JUN I N u BLAST 27 JUN E - - LOCAL 28 JUN I - 28 JUN E 28 JUN I w u 28 JUN I u BLAST 28 JUN E LOCAL 29 JUN I D LOCAL 29 JUN I u - LOCAL 29 JUN E - -, LOCAL 29 JUN E 29 JUN E LOCAL 29 JUN E JUN E LOCAL 3 JUN IP N E u E u 1 JUL E 1 JUL E LOCAL 1 JUL I N E u 1 JUL e LOCAL 2 JUL E 2 JUL I u BLAST 2 JUL I N E u LOCAL 2 JUL E LOCAL 3 JUL IP s E u 4 JUL IP N E u 4 JUL l I 4 JUL l IP N E u E u 4 JUL I u 5 JUL 66 l I D 5 JUL I N E u - - LOCAL 6 JUL I N D 6 JUL E LOCAL 6 JUL E LOCAL 6 JUL I LOCAL 7 JUL E BLAST, LAKE SUPERIO 7 JUL e 7 JUL I u LOCAL 7 JUL I D LOCAL 7 JUL E LOCAL 8 JUL E BLAST, LAKE SUPERIOR 8 JUL E BLAST, LAKE SUPERIOR 8 JUL E LOCAL 8 JUL E LOCAL 8 JUL I u LOCAL 8 JUl I D LOCAL

20 ii--. ) GMT OF TYPE OBSERVABLE ON SCP PAGE- 17 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 9 JUL E BLAST, LAKE SUPERIOR 9 JUL E BLAST, LAKE SUPERIOR v-'.!\ ) 9 JUL 66 17= I LOCAL 9 JUL I LOCAL 9 JUL I LOG AL 1 JUL E BLAST, LAKE SUPERIOR 1 JUL 66 9=32-29 E BLAST, LAKE SUPERIOR r'-, "'--",,.,--"' -./ 1 JUL I u 1 JUL 66 23=8-36. I u ' 11 JUL l N u 11 JUL I u BLAST, LAKE SUPERIOR 11 JUL E BLAST, LAKE SUPERIOR 11 JUL 66 15= I u LOCAL 11 JUL I LOCAL 11 JUl I u LOCAL 11 JUL E JUL E 12 JUL E BLAST, LAKE SUPERIOR 12 JUL E BLAST, LAKE SUPERIOR 12 JUL E - 12 JUL IP s w u 13 JUL IP N E 13 JUL E BLAST, LAKE SUPERIO 13 JUL E. - BLAST, LAKE SUPERIOR 14 JUL I s JUL E BLAST, LAKE SUPERIOR,- \_.i 14 JUL 66 9=32-3 E BLAST, LAKE SUPERIOR 14 JUL IP s E 14 JUL I N u /--., 15 JUL I u " ' j 15 JUL 66 8=32 29 E BLAST, LAKE SUPERIOR 15 JUL E BLAST, LAKE SUPERIOR 15 JUL E RF LOCAL 15 JUL E RF LOCAL 15 JUL E RF 16 JUL LOCAL.--.._) E - 16 JUL 66 15=4 2 E. - - LOCAL 11 JUL E C) 18 JUL 66 9=2-29 E BLAST, LAKE SUPERIOR 18 JUL 66 l I u. - - BLAST, LAKE SUPERIOR 18 JUL 66 15=27-33 E 18 JUL E 18 JUL I s w u LOCAL 19 JUL 66 Ol IP N E u 19 JUL 66 8=32-3 E BLAST, LAKE SUPERIOR 19 JUL E BLAST, LAKE SUPERIOR 19 JUL IP N w u u 2 JUL E BLAST, LAKE SUPERIOR 2 JUL E 2 JUL E BLAST, LAKE SUPERIOR (',_;

21 ;; GMT OF TYPE OBSERVABLE ON SCP PAGE- 18 DATE MOTION ONSET NS EW Z NS EW l REMARKS 21 JUL E BLAST, LAKE SUPERlO 21 JUL E 21 JUL E BLAST, LAKE SUPERIOR 21 JUL E 21 JUL I 22 JUL E - BLAST, LAKE SUPERIOR 22 JUL E BLAST, LAKE SUPERIOR 22 JUL E LOCAL 23 JUL IP N E u 23 JUL E BLAST, LAKE SUPERIOR 23 JUL E BLAST, LAKE SUPERIOR 3 JUL 66 18=22-38 E RF 3 JUL I RF u LOCAL 31 JUL I u LOCAL 31 JUL E LOCAL 1 AUG I D 1 AUG IP u 2 AUG E - 2 AUG I N w u LOCAL 2 AUG E 2 AUG I s u LOCAL 3 AUG I s u LOCAL 3 AUG E 3 AUG I N E 4 AUG I N u LOCAL 4 AUG I s E u LOCAL 5 AUG E AUG I N u LOCAL 5 AUG I s u LOCAL 6 AUG IP s w D 6 AUG E 6 AUG IP N w u - 7 AUG IP N w D N w 7 AUG IP 8 AUG I 8 AUG IP s E 8 AUG I 9 AUG E LOCAL 9 AUG I N E u LOCAL 9 AUG I N u LOCAL 9 AUG I s u LOCAL 1 AUG E AUG E 1 AUG I N s LOCAL 1 AUG E 1 AUG los.4 I s E u LOCAL 11 AUG E AUG IP u 11 AUG E LOCAL 11 AUG E j

22 r, -. ) GMT OF TYPE OBSERVABLE ON SCP PAGE- 19 DATE MOTION ONSET NS EW Z NS EW l REMARKS 12 AUG E 13 AUG I N u LOCAL 14 AUG E 15 AUG IP N 15 AUG IP s E u,,' 15 AUG E 16 AUG I u UG I u u -,_j 16 AUG IP N u u 16 AUG E - '. '-J' 17 AUG IP N E u 18 AUG I u 18 AUG E 18 AUG IP N E u N e u 18 AUG E 19 AUG E 19 AUG IP u - 19 AUG IP u u 19 AUG I u 2 AUG IP s w 2 AUG IP N E u AUG IP w u 21 AUG E 21 AUG I u 2 AUG E AUG E LOCAL, ) 22 AUG I u LOCAL 2Z AUG E 22 AUG E 22 AUG E.,. -. BLAST 23 AUG E LOCAL 24 AUG IP N E 24 AUG E 24 AUG I u 25 UG E 25 UG IP N E u - 26 AUG E AUG I u \_; 26 AUG I u - 26 AUG I s u 27 UG I - 28 AUG IP w u 28 AUG IP s w 29 AUG I u 29 AUG I - u 3 AUG IP N 3 AUG IP N w u \_) 1 SEP I u - 1 SEP E 1 SEP IP N E - -. "_,./

23 iii GMT OF TYPE OBSERVABLE ON SCP PAGE- 2 DATE MOTION ONSET NS EW Z NS EW Z REMARKS 2 SEP E 3 SEP E 3 SEP E 4 SEP I u. 4 SEP E 5 SEP I u 6 SEP I LOCAL 6 SEP I u LOCAL 7 $EP E 7 SEP E LOCAL 8 $EP IP u u 9 SEP I s E - 9 $EP E SEP E LOCAL 1 SEP I u LOCAL 1 SEP I u 11 SEP E 11 $EP IP N w u u 12 SEP I u u 12 $EP IP D 12 $EP E 13 SEP E 13 SEP E QUARRY BLAST 13 SEP l I u QUARRY BLAST 14 SEP E 15 $EP IP s E u - 15 SEP E SEP E 17 SEP E 18 $EP 66 5=35-2 E 17 SEP IP N E u - 18 SEP l IP s E u - 19 SEP I s w u QUARRY BLAST 19 SEP 66 22= I s E u QUARRY BLAST 2 SEP I D LOCAL 21 SEP E 21 SEP I QUARRY BLAST 22 SEP I N E - 22 SEP I N w D 26 SEPT E LOCAL BLAST 27 SEPT E. 28 SEPT I u 28 SEPT E 29 SEPT l.8 I u - 29 SEPT E 3 SEPT E 1 OCT E 1 OCT E. 2 OCT IP N s 28 SEPT E - - -

24 f,, :o,'' <., u J ' ( 1 _., (J ' I, 'J,_.; u DATE GMT Of FIRST MOTION 2 OCT OCT OCT ,.97 4 OCT os 6cT gcr CT QCT ()CT OCT l 9 OCT 66 oa OCT QCT OCT OCT OCT QCT OCT OCT l.5 13 OCT OCT OCT OCT , OCT OCT OCT OCT OCT OCT l TYPE 8$ERYABLE ON SCP PAGE- 21 OF SHORT PER LONG PER ONSET NS EW z NS ew z. REMARKS. I N u "" e -:"'; -. I u. - ""' e - - IP N u e IP N - - D E..,,, I N w -,. e, E ' I N u. -. E t N - - u - E IP N IP N E IP e u - IP S. RF - I RF U I RF'U I N u - -. E IP N RF U N w u I N RF U I N RF U I N RF U IP N RF U u 1''\ J <y \ ) ' \._) """ \.,!! ", \._./, u u.''\

25 Ii \ We acknowledge with thanks receipt of the following bulletins and other publications between 18 January 1966 and 3 November 1966: Ankara, Turkey, Weekly readings, 48-52, 1965; Nos. 1-46, Apia, Samoa, Mag. results for Australia, Dept. of Nat'l. Dev., Ops. Rep. Vol. 13, 9/65 to 12/65; Vol. 14, 1/66 to 6/66; Seis. Bull Barcelona, Spain, Seis. Bull. No. 49, Beni-Abbes, France, Seis. Bull., Nov, 1965; Apr, 1966; Bull. Mensuel 2, 1964, Bergen, Norway, Seis. Bull. Sept-Dec, 1961; Sept, 1962; Dec, 1963; Om Npyaktigheten av gravimetrisk dybdebestemmelse av et myromrade i Fyllingsdalen Ved Bergen. Refraksjonsseismiske underspkelser pa Ja@ren. Berkley, Calif., Seis. Bull. Vols. 33(2) to 34(1). Caracas, Venezuela, Bull. Seis. Mensual, July-Dec, 1965; Jan- Apr, Cine, Turkey, Weekly readings, 48, 1965; 1-46, Copenhagen, Denmark, Seis. Sta. Bull. July-Dec, Corvallis, Oregon, Seis. Bull. No. 7, Jan-Mar, Fayetteville, Ark., Seis. Bull. Vols. XIII and XIV. Greece, Seis. Sta. Network, Prel. Bull., Sept-Dec, 1965; Jan-Mar, 1966; May-July, 1966,. Istanbul, Turkey, Weekly readings, Jl/66-47/66; 49/66; 51/66; 52/66. Japan Meteo. Ag., Seis. Bull., July June Jerusalem, Israel, Prov. Rds. Bull ; Seis. Bull. Jan-Aug, Kakioka, Japan, Rep. of the Geomag. and Geoel. Obs ; Kandilli Obs., Turkey, Prel. Seis. Rds. 1/66; 3-5/66; 7-4/66. Kastamonu, Turkey, Weekly readings, 48-52, 1965; 1-46, Kobe, Japan, Bull. Marine Obs. No. 176, Mar, 1966; Seis. Bull. July-Dec, 1964; Jan-Apr, Konsberg, Norway, Seis. Bull. 9-62; LaPaz, Bolivia, Seis. Bull. Jan-Mar, 1965; Prel. Rds Lisbon, Portugal, Seis. Bull., 1965 (3-6); 1966 (1-2). Ljubljana, Yugoslavia, Prel. Seis. Bull., Jan-Dec, Lwiro, Katana, Afrique Centrale, Prel. Bull., Jan-Oct, 1966; Seis. Sta. Bull., Vol. 9-1, 7-61 to Madison, Wisconsin, Seis. Bull. Jan-Dec, 1963; Geophy. Polar Res. Seis. Bull., Jan-May, Manila, Philippines, July-Nov, 1965; Jan-June, Mexico, Inst. Geofis. Seis. Servicia, Aug-Dec, 1965; Jan-June, Morgantown, w. Va., Seis. Rpt. XXIX, XXX. Montreal, Canada, Bull. of Geophys. No. 18, May, Moscow, Russia, Seis. Bull. Nos. 3-6, Mar-June, Ottawa, Canada, Dom. Obs., Seis. Bull. Jul-Dec, 1963; Jan- Dec, Padova, Italy, Publication N 97; Pub. 84. Pasadena, Calif., Prel. Bull. No Praha, Czechoslovakia, Seis. Bull., /"

26 \ ' II Ill lllf ilii i jijil/u/' Raman, Turkey, Weekly readings 48-52, 1965; 1-45, Rome, Italy, Seis. Bull. Def., Sept-Dec, 1964; Jan, 1965; Salt Lake City, Utah, Seis. Bull., July-Sept, Sapporo, Japan, Series VII(Geophys.) Vol. II, No. 3, Mar, Strasbourg, France, Annales Inst. Phys. Globe 1959, 196 Bull. Mensuel, Oct, Feb, 1964; Bull. Seis., Oct-Nov, 1965, Jan-Apr, Stuttgart, Germany, Seis. Bull., Taiwan, China, Weather Bureau, Seis. Bull. Vol. 1 (1-4); 11(1-3), 12(2-4). Toyko, Japan, Bull. of Internat'l. Inst. Seis. and Earthquake Engr. Vol. 2, 1965; Records of Oceanographic Works, Vol. 8, No. 2, Feb, 1966; Jn. of Geomag. and Geoel. Vtrl. 18, No. 1, Trieste, Italy, Bull. of Geofisica, Vol. VIII, June, U.S.C.G.S., Antartic Seis. Bull., Oct, 1965; Mar, 1966; South Pole, Apr-Dec, 1961; Seis. Bull Jun-Dec, 1965; Prelim. det. epicenters to 1-65; 1-66 to 35-66; to 75-66; Earthquake data report to 8-66; Summary of Prelim. Sets, Jan-July, 1964; Sept Feb, 1965; Apr-Sept, 1965; Nov-June, 1966; Aug, Wellington, New Zealand, Seis. Report, E-142, ' """ The Geophysical Laboratory Department of Geology and Geophysics Mineral Sciences Building University Park, Pa., U.S.A., 1682 B. F. Howell, Jr., Director 3 November 1966 UNIV RSJTY OF ARKANSAS LIBRARY