1*** HYPOELLIPSE - VAX VERSION A8 JUN 1984 *** RUN ON 10 31 97 at 12:47:12 #216 western Va 0 LIST OF STATIONS AVAILABLE FOR THESE SOLUTIONS. NON INDEXED STATION LIST. CODE = 1 SET UP FOR EVENTS STARTING ON 0 0 NAME LATITUDE LONGITUDE ELEV P THICKNESS P P PDY1 SDY1 PDY2 SDY2 PDY3 SDY3 PDY4 SDY4 PDY5 SDY5 CALR XMGC FMWT FMGC WT POL * CONTINUATION RECORD * THK 1 2 MOD DLY SYS PS STAWT TLDLY YRMODY HRMN BLA 37N 12.68 80W 25.21 634 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 FWV 37N 34.90 80W 48.70 756 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 WMV 37N 6.51 80W 58.23 1157 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 ELN 37N 13.70 80W 45.10 634 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 GHV 37N 47.65 78W 6.44 107 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 SLTN 36N 26.59 82W 7.23 1280 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 EGT 35N 54.05 83W 17.88 1103 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 CRTN 36N 11.99 83W 50.44 488 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 ABTN 35N 53.13 86W 6.54 363 1 0.000.00 1 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 1.0 1.00 1010 0 * 1.0 0.00 999999 9999 #216 western Va TEST VARIABLES DESCRIPTION STANDARD RESET TO 1 1.7800 1.7000****RATIO OF P-WAVE VELOCITY TO S-WAVE VELOCITY. 2 5.0000 0.0000****LT 0 NO ELEV COR/EQ 0 USE 1ST VEL/GT 0 USE THIS. 3 0.0000 0.0000****TRIAL LATITUDE IN DEGREES. 4 0.0000 0.0000****TRIAL LONGITUDE IN DEGREES. 5 5.0000 5.0000****TRIAL DEPTH IN KILOMETERS. 6 -10.0000 -10.0000****SPHERE RAD FOR AUX RMS VALUES. IF NEG CONT ITERATION AT MOST NEG POINT. 7 10.0000 -3.0000****MINIMUM NUMBER OF FIRST MOTIONS REQUIRED TO PLOT 8 1000.0000 1000.0000****CALL VELAZM AND EXIT IF SMALLEST EPI DIST GT THIS 9 360.0000 360.0000****CALL VELAZM IF GAP GREATER THAN THIS. 10 50.0000 1.0000****BEGIN DISTANCE WEIGHTING ON THIS ITERATION. 11 50.0000 50.0000****XNEAR = GREATEST DISTANCE WITH WEIGHT OF 1.0 12 100.0000 400.0000****XFAR = LEAST DISTNACE WITH WEIGHT OF 0.0 13 50.0000 50.0000****BEGIN AZIMUTHAL WEIGHTING ON THIS ITERATION. 14 50.0000 4.0000****BEGIN WEIGHTING OUT LARGE RESIDUALS ON THIS ITER 15 10.0000 2.0000****GIVE ZERO WEIGHT TO RESIDUALS GT THIS. 16 50.0000 50.0000****BEGIN BOXCAR WEIGHTING ON THIS ITERATION. 17 2.0000 2.0000****GIVE ZERO WEIGHT TO RESIDUALS GT THIS*STAND. DEV 18 50.0000 50.0000****BEGIN JEFFREYS WEIGHTING ON THIS ITERATION. 19 0.0500 0.0500****USE JEFFREYS WEIGHTING ONLY IF RMS GT THIS. 20 0.0500 0.0500****MU OF JEFFREYS WEIGHTING FUNCTION. 21 9.0000 9.0000 MAXIMUM NUMBER OF ITERATIONS. 22 35.0000 35.0000 LIMIT CHANGE IN FOCAL DEPTH TO THIS AMOUNT (KM). 23 0.5000 0.5000 IF DELZ WOULD MAKE Z NEG, SET DELZ = -THIS*Z (KM) 24 35.0000 35.0000 LIMIT CHANGE IN EPICENTER TO THIS. (KM) 25 40.0000 40.0000 FIX DEPTH IF EPICENTRAL CHANGE GT THIS. (KM) 26 0.0025 0.0025 STOP ITERATING IF SQUARE OF ADJUSTMENT LT THIS. 27 0.0000 0.0000 ACCELERATE SOLUTION IF THIS = 1.0 28 400.0000 400.0000 TO FIX EPI. ON PLANE, SET .EQ. PLUNGE AZIMUTH.IF NEG. CONTINUE AS FREE SOL. 29 0.3000 0.3000 SET STD ERR OF RES=+THIS IF DEGREES OF FREEDOM = 0 OR = -THIS IF THIS LT 0. 30 0.0000 0.0000 DIP OF PLUNGE VECTOR FOR EPI. FIXED ON PLANE. 31 -1.1500 -3.4500****DURATION MAGNITUDE C1, CONSTANT 32 2.0000 2.8500****DURATION MAGNITUDE C2, *LOG((F - P)*FMGC) 33 0.0035 0.0000****DURATION MAGNITUDE C3, *DELTA 34 0.0000 0.0000 IF RMS LT THIS, USE THIS IN JEF OR BOX WEIGHTING 35 0.0000 0.0000 NO OF STA REQ IN EACH QUAD. IF LT 5 GROUP ALL. 36 2.0000 1.0000****ASSIGNED WEIGHTS RAISED TO THIS POWER. 37 3.0000 3.0000 IF TERMINATION OCCURS BEFORE THIS ITERATION, SET ITERATION NUMBER TO THIS AND CONTINUE. 38 0.0000 0.0000****IF THIS = 1, RUN ALL WITH AND THEN WITHOUT S/ =2,RUN WITH S/ =3, RUN WITHOUT S/ NEG, USE S TO FIX ORIGIN. 39 1.0000 0.7500****MULTIPLY THE S AND S-P WEIGHTS BY THIS FACTOR. 40 0.0070 0.0000****DURATION MAGNITUDE C4, *DEPTH 41 0.0000 0.0000 IF THIS = 1, PRINT OPT. .GE. 1, & SUMMARY OPT. = + OR -1, THEN WRITE SUM. RECORD EACH ITTERATION. 42 0.0000 0.0000 IF GT 0 AVE MAG FROM CLOSEST N STATIONS WITH MAG REPORTED. IF EQ 0 ALL MAGS USED. 43 0.0000 0.0000 DURATION MAGNITUDE C5, *(LOG((F - P)*FMGC)**2) 44 0.0000 0.0000 IF EQ 1, RERUN EVENT WITH ONLY CRITICAL STATIONS. 45 0.1379 0.1379 X SCALE FACTOR FOR FOCAL MECHANISM PLOT 46 0.0000 0.0000 XFAR SET .GE. DIST OF TEST(46)TH STATION + 10. 1PRINTER OPTION 1 SUMMARY OPTION 0 MAGNITUDE OPTION 1 QUALITY OPTION 2 F. S., NO PG EJT -1 FINAL SOLUTION 0 NO SUM RECORDS 0 USE XMAG 0 NO SUMMARY 0 ONE LINE PER ITER 1 SUMMARY RECORDS 1 USE FMAG 1 A 1 STA RES EACH ITER 2 SUM + INPUT RECS 2 USE (XMAG+FMAG)/2 2 A + B 2 REGRES EACH ITER 3 'CORRECTED' INPUT 5 PREFER FMAG /XMAG 3 A,B + C 3 A,B,C + D 4 POSITIVE/ERROR ELLIPSE IF NEG USE FMS NOT FMP POSITIVE/Q FROM STD ERRORS NEGATIVE/NO ER ELLIPSE NEGATIVE/Q FROM SOL+STA CRUSTAL MODEL 1 LAYER VELOCITY DEPTH THICKNESS VPVS KM/SEC KM KM 1 5.630 0.000 5.700 1.640 2 6.050 5.700 9.000 1.720 3 6.530 14.700 36.000 1.700 4 8.180 50.700 1000.000 1.710 THE NEXT MODEL IS FOR S ONLY: CRUSTAL MODEL 2 LAYER VELOCITY DEPTH THICKNESS VPVS KM/SEC KM KM 5 3.433 0.000 5.700 0.000 6 3.517 5.700 9.000 0.000 7 3.841 14.700 36.000 0.000 8 4.784 50.700 1000.000 0.000 ------------END--------------------------------------------------------------------------------------- 1 ------------BEGIN-------------------------------------------------------------------------------------- 97/10/30 6/42 #216 western Va 97/10/30 6/42 (--------ADJUSTMENTS IN PRINCIPAL DIRECTIONS--------)( ADJUSTMENTS )(ADJST. TAKEN) I LAT LONG DEPTH RMS NO PRMS DAMP -AZ/DP--STEP---SE =AZ/DP==STEP===SE -AZ/DP--STEP---SE DLAT DLON DZ DLAT DLON DZ 1 6.5 58.2 10.0 4.30 15 1.29 .10E-02 145/ 2 -23.6 10.4 261/17 22.36 4.94 48/72 13.46 7.36 -29. .788 20.4-28.7 0.8 20.4 2 51.0 58.8 30.4 1.38 15 .852 .10E-02 261/16 1.816 3.58 329/36 -25.8 12.9 118/50 -4.47 7.42 -18. -6.9 -18.-17.9 -6.9-18.0 3 41.3 54.2 12.3 0.91 15 .791 .10E-02 222/11 2.537 3.29 322/41 .0253 11.1 120/47 -3.35 6.03 3.00 .332 -2.9 3.0 0.3 -2.9 4 43.0 54.4 9.4 0.61 14 .602 .10E-02 132/ 5 -1.14 6.28 224/16 .0534 2.51 27/74 -1.96 8.59 -1.2 -.63 -1.8 -1.2 -0.6 -1.8 5 42.3 54.0 7.6 0.60 14 .600 .10E-02 313/ 0 -.092 6.26 223/14 .0263 2.53 43/76 -.289 9.26 -.10 -.04 -.29 -0.1 0.0 -0.3 5 42.3 53.9 7.3 0.60 14 .000 .10E-01 313/ 0 223/14 43/76 0.1 0.0 0.3 6 42.3 54.0 7.6 0.60 14 .600 .10E-01 313/ 0 -.092 6.26 223/14 .0263 2.53 43/76 -.287 9.24 -.10 -.04 -.28 -0.1 0.0 -0.3 5 42.3 53.9 7.3 0.60 14 .000 .10E+00 313/ 0 223/14 43/76 0.1 0.0 0.3 6 42.3 54.0 7.6 0.60 14 .600 .10E+00 313/ 0 -.077 5.72 223/14 .0255 2.49 43/76 -.201 7.73 -.07 -.04 -.20 -0.1 0.0 -0.2 5 42.3 53.9 7.4 0.60 14 .000 .10E+01 313/ 0 223/14 43/76 0.1 0.0 0.2 6 42.3 54.0 7.6 0.60 14 .600 .10E+01 313/ 0 -.004 1.37 223/14 .0062 1.23 43/76 -.006 1.39 .000 -.01 -.01 0.0 0.0 0.0 6 42.3 54.0 7.6 0.60 14 .600 .10E-02 313/ 0 -.092 6.26 223/14 .0263 2.53 43/76 -.289 9.26 -.10 -.04 -.29 0.0 0.0 0.0 HORIZONTAL & VERTICAL SINGLE VARIABLE (1DOF) 68% CHI SQUARE CONFIDENCE INTERVALS SE = 1.78 SE = 3.35 SE = 4.82 QUALITY = C AZ = 43. AZ = 313. CHI SQUARE 68% (2DOF) ELLIPSE SEMIAXES = 2.72 KM AND 5.12 KM SE OF ORIG = 0.49 TOTAL NUMBER OF ITERATIONS = 6 DMAX = 400.00 SEQUENCE NUMBER = AT THE CLOSEST STATION USED IN THE SOLUTION BOTH P AND S WERE USED. THE S MINUS P INTERVAL EQUALS 5.56 DATE ORIGIN LAT LONG DEPTH MAG NO D1 GAP D RMS ERH ERZ Q SQD ADJ IN NR AVR AAR NM AVXM SDXM NF AVFM SDFM 971030 642 22.85 36N42.31 80W53.96 7.62 2.250 14 45 185 1 0.60 3.3 4.8 D D D 0.22 10 17 0.00 0.52 0 0.0 2 2.25 0.0 (- STATION DATA -) (------ P-WAVE TRAVEL-TIME DATA AND DELAYS -------) VARI (---- S-WAVE TRAVEL-TIME DATA --)(--- MAGNITUDE DATA --) STN DIST AZM AIN PSEC PRMK+TCOR-O=TTOB-TTCAL C-DLAY-EDLY=P-RES P-WT THIC SSEC SRMK TTOB TTCAL S-RES S-WT AMX PR XMAG R FMP FMAG WMV 45.2 352 94 30.34EP 7.49 7.85 1 .076 -0.44 1.742 35.90 13.05 13.23 -0.26 1.307 ELN 59.5 13 92 33.90EP 11.05 10.22 1 .041 0.79 1.649 41.13 18.28 17.30 0.94 1.237 BLA 70.5 37 92 34.54IPP 11.69 12.04 1 .041 -0.39 1.544 43.12 20.27 20.43 -0.20 1.158 100 2.2 FWV 97.6 5 68 39.19EP 16.34 16.46 1 .068 -0.19 1.301 50.36 27.51 27.99 -0.58 0.976 100 2.2 SLTN 113.1 255 68 41.16EP 18.31 18.83 1 .115 -0.64 1.171 55.74 32.89 32.03 0.69 0.878 EGT 233.2 248 68 0.09 37.24 37.22 1 .099 -0.08 0.396 CRTN 269.6 259 48 4.42 41.57 42.12 1 .063 -0.61 0.242 36.28 73.43 71.78 1.55 0.181 GHV 275.6 63 48 7.10EP 44.25 42.86 1 .014 1.38 0.220 40.00 77.15 73.04 4.09M0.000 ABTN 476.7 261 48 30.08 67.23 67.44 1 .047 -0.25D0.000 71.94 109.09115.07 -6.05D0.000 DATE ORIGIN LAT LON DEP MD NO DMIN GAP RMS AX1 AZ1 AX2 AXZ Q QL QS QD 971030 6 42 22.8 36.705N 80.899W 7.6 2.2 14 45 185 0.6 3.3 313 1.8 4.8 C D D D QUALITY EVALUATION DIAGONALS IN ORDER OF STRENGTH Z NW SE SW N NE E AVE. OF END POINTS 0.03 0.10 0.20 0.26 0.31 0.32 0.41 NUMBER RMS MIN DRMS AVE DRMS QUALITY 10 0.60 0.04 0.25 D STATION BLA FIRST MOTION SYMBOL(P) IS NOT CORRECT 1 XXXXX CLASS/ A B C D TOTAL XXXXX NUMBER/ 0.0 0.0 1.0 0.0 1.0 P/ 0.0 0.0 100.0 0.0 INCLUDE ONLY CLASS B AND BETTER IN THE FOLLOWING STATISTICS. P RESIDUALS S RESIDUALS S-P RESIDUALS X-MAG RES F-MAG RES STATION N WT AVE SD N WT AVE SD N WT AVE SD N AVE SD N AVE SD STATION BLA 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 BLA FWV 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 FWV WMV 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 WMV ELN 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 ELN GHV 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 GHV SLTN 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 SLTN EGT 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 EGT CRTN 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 CRTN ABTN 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.0 0.00 0.00 0 0.00 0.00 0 0.00 0.00 ABTN 1 31-OCT-97 12:47:15 for the program ELLIPSE *********** #216 western Va CRUSTAL MODEL 1 LAYER VELOCITY DEPTH THICKNESS VP/VS KM/SEC KM KM 1 5.630 0.000 5.700 1.64 2 6.050 5.700 9.000 1.72 3 6.530 14.700 36.000 1.70 4 8.180 50.700 1000.000 1.71 5 3.433 0.000 5.700 0.00 6 3.517 5.700 9.000 0.00 7 3.841 14.700 36.000 0.00 8 4.784 50.700 1000.000 0.00 RESULTS OF EACH ITERATION: I LAT LONG DEPTH RMS DLAT DLONG DZ 1 6.5 58.2 10.00 4.30 -28.70 0.79 20.36 2 51.0 58.8 30.36 1.38 -17.85 -6.86 -18.03 3 41.3 54.2 12.34 0.91 3.00 0.33 -2.92 4 43.0 54.4 9.42 0.61 -1.22 -0.63 -1.81 5 42.3 54.0 7.62 0.60 -0.10 -0.04 -0.29 5 42.3 53.9 7.33 0.60 0.10 0.04 0.29 6 42.3 54.0 7.62 0.60 -0.10 -0.04 -0.28 5 42.3 53.9 7.33 0.60 0.10 0.04 0.28 6 42.3 54.0 7.62 0.60 -0.07 -0.04 -0.20 5 42.3 53.9 7.41 0.60 0.07 0.04 0.20 6 42.3 54.0 7.62 0.60 0.00 -0.01 -0.01 6 42.3 54.0 7.62 0.60 0.00 0.00 0.00 *********** HYPOELLIPSE LOCATION RESULTS *********** HORIZONTAL(2DOF) VERTICAL SE = 2.72 SE = 5.12 SE = 4.82 QUALITY = C AZ = 43. AZ = 313. DATE ORIGIN LAT LONG DEPTH MAG NO GAP RMS ERH ERZ SQD 971030 642 22.85 36N42.31 80W53.96 7.6 2.2 14 185 0.60 3.3 4.8 D D (---STATION DATA---)(-----P WAVE DATA------)(-----S WAVE DATA------)(MAG DATA) STA DIST AZM ADP PSEC PRMK PRES PWT SSEC SRMK SRES SWT FMP FMAG WMV 45.2 352 94 30.34 EP -0.44 1.74 35.90 -0.26 1.31 ELN 59.5 13 92 33.90 EP 0.79 1.65 41.13 0.94 1.24 BLA 70.5 37 92 34.54 IPP -0.39 1.54 43.12 -0.20 1.16 100 2.2 FWV 97.6 5 68 39.19 EP -0.19 1.30 50.36 -0.58 0.98 100 2.2 SLTN 113.1 255 68 41.16 EP -0.64 1.17 55.74 0.69 0.88 EGT 233.2 248 68 0.09 -0.08 0.40 CRTN 269.6 259 48 4.42 -0.61 0.24 36.28 1.55 0.18 GHV 275.6 63 48 7.10 EP 1.38 0.22 40.00 4.09M 0.00 ABTN 476.7 261 48 30.08 -0.25D 0.00 71.94 -6.05D 0.00 QUALITY BASED ON FOCAL SPHERE: D