EARTHQUAKE
FILE INFORMATION
FILENAME(S): EARTHQUAKE
FILE TYPE(S): PRG
FILE SIZE: 6.1K
FIRST SEEN: 2025-12-02 02:06:49
APPEARS ON: 1 disk(s)
FILE HASH
01b6928d2ebcdcf09a8950a576268ab6e412dde29c32a6d615dbb5d63dc98374
FOUND ON DISKS (1 DISKS)
| DISK TITLE | FILENAME | FILE TYPE | COLLECTION | TRACK | SECTOR | ACTIONS |
|---|---|---|---|---|---|---|
| NATUURK LBO EIB | EARTHQUAKE | PRG | Shocktrooper | 13 | 10 | DOWNLOAD FILE |
FILE CONTENT & ANALYSIS
> DETECTED: COMMODORE BASIC PROGRAM (LOAD ADDRESS $0801)
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000013B0: 41 52 41 43 54 45 52 2A 2A 2A 00 CE 1B 32 14 8B |ARACTER***...2..|
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000013E0: 5A 24 3A 89 35 30 31 30 00 0E 1C 7B 15 AC AC AC |Z$:.5010...{....|
000013F0: AC AC AC AC AC AC AC AC AC AC AC AC AC AC AC AC |................|
00001400: AC AC AC AC AC AC AC AC AC AC AC AC AC AC 00 4F |...............O|
00001410: 1C 7C 15 8F 20 57 54 24 3B 20 57 41 56 45 20 54 |.|.. WT$; WAVE T|
00001420: 59 50 45 20 20 20 20 20 20 20 20 20 20 20 20 20 |YPE |
00001430: 20 20 20 20 20 20 20 20 20 20 20 20 20 53 50 20 | SP |
00001440: 3B 20 53 50 45 45 44 20 4F 46 20 57 41 56 45 00 |; SPEED OF WAVE.|
00001450: 62 1C 86 15 42 B2 B5 28 BB 28 30 29 AC 32 30 AA |b...B..(.(0).20.|
00001460: 31 29 00 78 1C 90 15 43 B2 53 50 AC 42 3A 8B 43 |1).x...C.SP.B:.C|
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000014B0: 45 20 54 4F 20 54 52 41 56 45 4C 22 43 22 4B 4D |E TO TRAVEL"C"KM|
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000014D0: 22 53 50 3A 99 22 4B 4D 2F 53 3F 22 00 00 1D AE |"SP:."KM/S?"....|
000014E0: 15 99 22 11 20 20 20 20 20 20 20 3E 20 22 3B 3A |..". > ";:|
000014F0: 8D 35 30 30 30 3A 41 B2 C5 28 5A 5A 24 29 3A 99 |.5000:A..(ZZ$):.|
00001500: 00 06 1D B8 15 8E 00 25 1D E0 15 43 B2 36 30 AC |.......%...C.60.|
00001510: 28 B5 28 BB 28 30 29 AC 31 30 29 AA 31 29 3A 42 |(.(.(0).10).1):B|
00001520: B2 43 AD 31 32 00 58 1D EA 15 99 22 93 11 20 20 |.C.12.X....".. |
00001530: 20 D7 48 41 54 20 20 57 4F 55 4C 44 20 42 45 20 | .HAT WOULD BE |
00001540: 20 54 48 45 20 20 54 49 4D 45 20 4C 41 47 20 42 | THE TIME LAG B|
00001550: 45 54 57 45 45 4E 22 3B 00 89 1D F4 15 99 22 54 |ETWEEN";......"T|
00001560: 48 45 20 41 52 52 49 56 41 4C 20 20 4F 46 20 54 |HE ARRIVAL OF T|
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00001580: D3 2D 57 41 56 45 53 22 3B 00 B6 1D FE 15 99 22 |.-WAVES";......"|
00001590: 57 48 45 4E 20 41 4E 20 45 41 52 54 48 51 55 41 |WHEN AN EARTHQUA|
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000015B0: 57 41 59 3F 11 22 00 E6 1D 08 16 99 22 28 53 50 |WAY?."......"(SP|
000015C0: 45 45 44 53 3A 20 D3 2D 57 41 56 45 3B 20 34 20 |EEDS: .-WAVE; 4 |
000015D0: 4B 4D 2F 53 2C 20 D0 2D 57 41 56 45 3B 20 36 20 |KM/S, .-WAVE; 6 |
000015E0: 4B 4D 2F 53 29 22 00 09 1E 12 16 99 22 20 20 20 |KM/S)"......" |
000015F0: 20 20 20 20 3E 20 22 3B 3A 8D 35 30 30 30 3A 99 | > ";:.5000:.|
00001600: 3A 41 B2 C5 28 5A 5A 24 29 00 0F 1E 1C 16 8E 00 |:A..(ZZ$).......|
00001610: 44 1E 44 16 99 22 93 11 11 11 20 20 20 D7 48 41 |D.D..".... .HA|
00001620: 54 20 49 53 20 20 54 48 45 20 20 4C 41 47 20 54 |T IS THE LAG T|
00001630: 49 4D 45 20 20 4F 46 20 54 48 45 20 D3 2D 57 41 |IME OF THE .-WA|
00001640: 56 45 22 3B 00 64 1E 4E 16 99 22 42 45 48 49 4E |VE";.d.N.."BEHIN|
00001650: 44 20 54 48 45 20 D0 2D 57 41 56 45 20 46 4F 52 |D THE .-WAVE FOR|
00001660: 22 57 54 24 00 86 1E 58 16 99 22 11 20 20 20 20 |"WT$...X..". |
00001670: 20 3E 20 22 3B 3A 8D 35 30 30 30 3A 41 B2 C5 28 | > ";:.5000:A..(|
00001680: 5A 5A 24 29 3A 99 00 A5 1E 62 16 8B B6 28 41 AB |ZZ$):....b...(A.|
00001690: 42 29 B2 B3 2E 35 A7 99 22 C7 4F 4F 44 21 22 3A |B)...5..".OOD!":|
000016A0: 89 35 37 36 30 00 BE 1E 6C 16 99 22 11 CE 4F 54 |.5760...l.."..OT|
000016B0: 20 47 4F 4F 44 20 45 4E 4F 55 47 48 2E 22 00 F4 | GOOD ENOUGH."..|
000016C0: 1E 76 16 99 22 11 20 20 20 20 20 20 D0 52 45 53 |.v..". .RES|
000016D0: 53 20 52 45 54 55 52 4E 20 41 4E 44 20 54 52 59 |S RETURN AND TRY|
000016E0: 20 41 47 41 49 4E 2E 22 3A 8D 36 30 31 30 3A 89 | AGAIN.":.6010:.|
000016F0: 35 37 30 30 00 17 1F 80 16 99 22 11 11 20 20 20 |5700......".. |
00001700: C8 4F 57 20 46 41 52 20 41 57 41 59 20 46 52 4F |.OW FAR AWAY FRO|
00001710: 4D 22 3B 3A 49 B2 31 00 43 1F 8A 16 41 24 B2 CA |M";:I.1.C...A$..|
00001720: 28 57 54 24 2C 49 2C 31 29 3A 49 B2 49 AA 31 3A |(WT$,I,1):I.I.1:|
00001730: 8B 41 24 B3 B1 22 2C 22 A7 99 41 24 3B 3A 89 35 |.A$..","..A$;:.5|
00001740: 37 37 30 00 68 1F 94 16 99 22 20 44 49 44 22 3A |770.h...." DID":|
00001750: 99 22 54 48 45 20 45 41 52 54 48 51 55 41 4B 45 |."THE EARTHQUAKE|
00001760: 20 4F 43 43 55 52 3F 22 00 8A 1F 9E 16 99 22 11 | OCCUR?"......".|
00001770: 20 20 20 20 20 3E 20 22 3B 3A 8D 35 30 30 30 3A | > ";:.5000:|
00001780: 99 3A 41 B2 C5 28 5A 5A 24 29 00 C2 1F A8 16 8B |.:A..(ZZ$)......|
00001790: B6 28 41 AB 42 AC 31 32 29 B2 B3 2E 35 A7 99 22 |.(A.B.12)...5.."|
000017A0: 11 D6 45 52 59 20 47 4F 4F 44 2E 20 D2 45 43 4F |..ERY GOOD. .ECO|
000017B0: 52 44 20 54 48 49 53 20 4E 55 4D 42 45 52 2E 22 |RD THIS NUMBER."|
000017C0: 3A 8E 00 09 20 B2 16 99 22 93 11 11 11 CE 4F 54 |:... ...".....OT|
000017D0: 20 47 4F 4F 44 20 45 4E 4F 55 47 48 2E 20 D4 52 | GOOD ENOUGH. .R|
000017E0: 59 20 41 47 41 49 4E 2E 11 22 3A 99 22 20 20 20 |Y AGAIN..":." |
000017F0: 53 45 43 4F 4E 44 53 20 44 45 4C 41 59 3A 22 42 |SECONDS DELAY:"B|
00001800: 22 91 22 3A 89 35 37 36 30 00 32 20 70 17 99 22 |".":.5760.2 p.."|
00001810: 11 20 20 20 20 20 20 20 20 50 52 45 53 53 20 52 |. PRESS R|
00001820: 45 54 55 52 4E 20 54 4F 20 43 4F 4E 54 49 4E 55 |ETURN TO CONTINU|
00001830: 45 22 00 4A 20 7A 17 A1 41 24 3A 8B 41 24 B3 B1 |E".J z..A$:.A$..|
00001840: C7 28 31 33 29 A7 36 30 31 30 00 50 20 84 17 8E |.(13).6010.P ...|
00001850: 00 73 20 28 23 97 20 35 33 32 38 30 2C 30 3A 97 |.s (#. 53280,0:.|
00001860: 35 33 32 38 31 2C 30 3A 99 C7 28 35 29 3B C7 28 |53281,0:..(5);.(|
00001870: 31 34 29 00 00 00 00 |14).... |
..$.... 53280,0:.53281,0:.G(5);G(14).W..
..".".14)"........EARTHQUAKE":..14)"....
......".......14)"....SOCIAL SCIENCE DEP
T.":..14)"ACTON DISTRICT HIGH SCHOOL"...
..T.TI.G....A$:.A$..G(13).TI.T.250.1030.
.....".... THERE ARE TWO OBJECTIVES
OF THIS";......"COMPUTER EXERCISE.".H
.$..". BY THE TIME YOU HAVE FINISHE
D YOU";.Y...."WILL BE ABLE TO CALCULAT
E THE DISTANCE";...8.."TRAVELLED BY PRI
MARY AND SECONDARY WAVES";.P.B.."BY USIN
G A SEISMOGRAPH RECORD."...L..". YOU
SHOULD ALSO BE ABLE TO LOCATE AN";.A.V..
"EARTHQUAKE USING SIMPLE SEISMOGRAP
HRECORDS..":.6000.V.`..".... THE DIFF
ERENT KINDS OF EARTHQUAKE";...J.."WAV
ES TRAVEL AT DIFFERENT SPEEDS IN THE";.
..T.."EARTH..":." PRIMARY WAVES, OR P
-WAVES, HAVE AN";...~.."AVERAGE SPEED
OF ABOUT 6 KILOMETERS PER";.$...."SECON
D..".U...." TO DETERMINE HOW LONG IT T
AKES A WAVE";......"TO TRAVEL A CERTAIN
DISTANCE, DIVIDE THE";......"DISTANCE BY
THE SPEED.":.6000.J...W.0:T.0:.".";:SP.
6:WT$." P".T....5500...D..A..B..".NO,"C"
./6 ="B:W.W.1:.1240...N..".GOOD!"./.X.T.
T.1:.W.T..5.W.0:T.1:.6000:.".";.=....T.3
.1210.[....T..(T.3).3.0..6000:.".";.L...
.W.T..2.1210......T..(T.3).3..0..6000...
...".... THE SECONDARY WAVES, OR S-WAV
ES START";......"AT THE SAME PLACE AN
D TIME AS THE P";......"WAVES, BUT TH
EY TRAVEL AT A SLOWER RATE";.Z.(.."OF SP
EED..":." S-WAVES TRAVEL AT ABOUT 4 KM
/S.":.6000.{.2.W.0:T.0:.".";:SP.4:WT$."N
S"...<..5500...F..A..B..".NO,"C"./4 ="B
:W.W.1:.1370...P..".GOOD!".T.Z.T.T.1:.W.
T..5.W.0:T.1...D..T.3.1340...N..T..(T.3)
.3.0..6000:.".";...X..W.T..2.1340.*....T
..(T.3).3..0..6000.6...W.0:T.0.F....5600
:T.T.1.D. ..A.B.."GOOD!":.6000:.1560.N..
.W.W.1......".NO, THE TIME LAG AT"C"KM I
S"B"SECONDS".K....". WAVE TYPE T
IME TO REACH"C"KM."...H.." S-WAVE
"C"./4 =".27)C.4"SECONDS"./.R.." P
-WAVE "C"./6 =".27)C.6"SECONDS".
W.....28)"..":..19)"TIME LAG"B"SECONDS".
.....". THEREFORE, EVERY 60 KM ADDS 5
SECONDSDELAY. THINK ABOUT IT."......6000
......W.T..4.T.3.1560......". WOULD Y
OU LIKE TO GO BACK TO SOMEEASIER QUES
TIONS? ";:.5000.#....ZZ$."Y".ZZ$."YES".1
200.1....T.3.1430.B."..W.T..2.1430.T.,..
". LOOK AT FIGURE 1-1 ON THE HANDO
UT";...6.."GIVEN TO YOU. THE TIME LAG
BETWEEN THE";.P.@.."P AND S WAVES SHOWN
IS 215 SECONDS."...J..". REMEMBER THAT
EACH 5 SECONDS OF THIS";.3.T.."TIME RE
PRESENTS A DISTANCE OF 60 KM FROM";.X.^.
."THE ORIGIN OF THE EARTHQUAKE."...H..".
. HOW FAR AWAY DID THIS EARTHQUAKE TAK
E";...M.."PLACE IF THE TIME LAG WAS 215
SECONDS?".S.R..". > ";:.5000:....|.
.E(ZZ$).2580..".FANTASTIC! YOUR DOING A
GREAT JOB!":.1750.9....".. YOUR PULLIN
G MY RECTIFIER!.".B...." THE CORRECT A
NSWER IS 2580 KM."......". EVERY 5 SE
CONDS DELAY IS 60 KM. IF";.E...."THE
TOTAL DELAY IS 215 SECONDS THEN";...
..."THERE ARE 43 GROUPS OF 5 SECONDS S
INCE";.'...."215/5 = 43. 43 GROUPS OF
5 SECONDS IS";.X.B.."THE SAME AS 43 GRO
UPS OF 60 KM WHICH IS";.Q.L.."43X60 OR
2580 KM."...V..".......":.".......";:.60
00.D....". REFER TO FIGURE 1-2 OF YOU
R HANDOUT.";......"THIS SHOWS THE SEISMO
GRAPH RECORD FOR AN";.&...."EARTHQUAKE
AS RECORDED IN THE THREE";.;...."CIT
IES SHOWN.".M....". THE P-WAVE IS ON T
HE LEFT, THE S-WAVE";......"ON THE RIGHT
. THE WAVES ARRIVE WHERE THE";.O...."STR
AIGHT LINE IS SHARPLY BENT ON THE";.
....."LEFT SIDE OF THE WAVES..". .&.."
A TIME SCALE IS GIVEN BELOW THE";
.Q.0.."RECORDS SO THAT THE DISTANCE BETW
EEN THE";...:.."P-WAVE AND S-WAVE CAN BE
CHANGED TO TIMEIN SECONDS.":.6000...D.W
T$." AUSTIN, TEXAS?":B.130:.5700:.6000..
.N.WT$." BISMARK, NORTH DAKOTA?":B.14
6:.5700:.6000.#.X.WT$." PORTLAND, OREGON
?":B.95:.5700:.6000.U.B..". USING THE
SCALE OF DISTANCE ON THE";...L.."MAP
PROVIDED IN YOUR HANDOUT AND A";..
.V.."PENCIL COMPASS, DRAW CIRCLES WITH
RADII";......"THAT CORRESPOND TO THE D
ISTANCES FOUND";......"IN THE LAST THRE
E QUESTIONS USING THE";.A...."PROPER C
ITIES AS CENTRES.":.". PRESS RETURN
WHEN YOU'RE DONE"......6010:.". THE E
PICENTER OF THE EARTHQUAKE IS";.J...."
FOUND WHERE ALL THREE CIRLCES MEET OR
";......"COME CLOSE TO MEETING.".6....".
. THE TEACHER KNOWS THE ANSWER":."
IF YOU WANT TO CHECK IT.".K.F.."...
PRESS RETURN TO START AGAIN":.601
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.";:ZZ$.H(ZZ$,C(ZZ$).1):.5010.I....***DE
L LINE***.|....C(ZZ$).2.5100......ZI.1.C
(ZZ$):." ..";:.......5000...(..***ADD CH
ARACTER***.N.2..C(ZZ$).30.5010...<..Z$;:
ZZ$.ZZ$.Z$:.5010...{....................
...............O.|.. WT$; WAVE TYPE
SP ; SPEED OF WAVE.
B...B..(.(0).20.1).X...C.SP.B:.C.99.5510
......" HOW MANY SECONDS WOULD IT TAKE
A"WT$......"WAVE TO TRAVEL"C"KM AT ITS
SPEED OF"SP:."KM/S?"......". > ";:
.5000:A.E(ZZ$):........%...C.60.(.(.(0).
10).1):B.C.12.X....".. WHAT WOULD BE
THE TIME LAG BETWEEN";......"THE ARRIV
AL OF THE P-WAVE AND S-WAVES";......"
WHEN AN EARTHQUAKE OCCURS"C"KM AWAY?."..
...."(SPEEDS: S-WAVE; 4 KM/S, P-WAVE; 6
KM/S)"......" > ";:.5000:.:A.E(ZZ$
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