Locating the Epicenter of an Earthquake Worksheet Answer Key

A Answer Name m 3 KCM l- ? a $ ! MB s« ? YJ : / Epicenter location \ i- .* . ' : - I ; • A *H & , 3 U: I : ? i I i i u4 ' •• • i : 5! Record this as the distance from the epicenter usina P wave arrival time long tn get 3, S waves move at half the speed of P waves and, therefore, take twice as . ; to each station. Double the arrival times (in seconds) and record in the appropriate space, • 5 * sheet. frooedifre 1. Convert .the arrival time of P waves to seconds. Record this time in the data by 6. s second 2 . Since P waves move at 6 kilometers per second, multiply the number of .• j. u* i . 5 . * . ' • • T) tV- • *5 . nt, the scale distance Contine Lost the of map the . on er 5. To plot the earthquake epicent wave for the map must be calculated Copy the "Distance from the Epicenter Using P" es Distanc the to chart " Time" from your own- figures in the "Earthquake Event Data . to be Plotted on the Map" chart. to find out what order ) in cm per (100 km 6 Divide the distance er measurement on the map represents scale distance to the epicent a Set; a drawing . / around each station as is possible given the size of the paper - i together is the epicenter point that all circles- come The 8 " H fyi<1np. 4 , . i" rii £ , £ ft ' 53 «h ' : : • • >! : > • - . '• r r • % • i r\ r •i • f .? 1 . v, . . .' * V • • r ' TV I S* r • it 1 \ ‘-. l f; £ r i M i rv .. 5 Earthquake Eyen.fc :Data . • : Seismic : : ;|.: iAnivai thm A units) - ] Station iV \ P -’Wtfvi* fl: • ' ' '' : ' .. : • t * • i :i VJ 2 min., 29 sec. * Hightown - ' f wave Arrival Time (seconds); : Distance from Epicenter Using . ..Fwi/aye:Tinier , . -.2 , K •• r , -4 .. - PSEMBBS t . ±: v . :• ^ ffioffed on the Map Distance from Epicenter U ing ^ ' to Mhp Scale P-waveTime - 4 ® •*v :• . , ' ' ' v» J :. - ', -^ f z. CflO i .i. * ' o ;• ^ V 4 r 'A . - - .> = :'g: :. . • .- - : - h \ : M* --S -t ' .* ! i /U Ty - • - « im '• • J® -m - -: . . ... r - •J * » ; - "i ? ?:.. • •• * ' : » V « ; i i ! i 1 i & Sn/tie Science ' ." % •• • : • IFS481 . V m ' : • i MwiKHWWW ! . ; m 1 • !\ •j :• * I0T2 CkV 13P . ! 1 M : ; 1 , .- ?; v * ! v , V® rJ“ .^ H 52 1 1 i 'r i r • : i . TMk • •• .JT ' ; r v . ! ! fi ' i •/ • -v ;• ' " » 5oT Instmct!o;nai Fritr « TS Denison . i bV I v. i ' : ' ? t • MW 4l(|0 ’ Metropolis . . ' -- i . Beach City V- • . i' Time (mixed unife) - • .er ; : • Distarsces to h Seishiic Station ' •: Wrlval - s mw ' C6 Hightown ) i l . ' r i - '• • •r . ftravail .Time (seconds) < . . ;= fMineWiyiWi ewnwn® i : • -- * ?4 . .: i •' T ’ T v- 5' Metropolis » S^wava - 1-- ' • ' ; I . - •• sec. W 1sec. rTTrsTfr min., . sec. sec. hoM u \ (oc6 sec. min. ? sec. 33? 5 . ,- .l G> 7sec. lido? k . Beach City • •! v - . " ST i. ! ; > .• e r •: . V i : 4 .! -A • i Iv. ' . i $ r ’ • . ; - . >.L . . r < • : \ \ 1J . & # • • Name * .. 1 •ir V"'' ‘t if 1 ’ K: ! !i? ; ! t . . : .< r r .. ft " s2Z£Z S£S£ t • - % V . ..‘rfi$:>rrffifc- : K * * .jjg . .. * i * §1H-# ^ vA nt, ‘Vr ;-AAW ^ • j; * . • n \1 I I iii • i i i PT7' A - r* -T . | ' ' * 9 WO" ‘ ^- apij : &S @ 5»SSv “ - . ^ ' . >:! /1: ! / • /! s A',-; • •; •:, . ? ;/ 5 • •* / f\ : • • ! i'.! feidtsw • ; ws . < •. •P : \ .* 5 £ ' tB : 2: : \ r ' liSfcfe . % A • i \ . -\ ‘ ^ : : il) . A . .. * - hi •• • ' ® i fwi 1 p§Fs 5•iff .- :: [ t ; / ! j * « f t ^ o : • i :!; : / / \ :;i !; ( * i . ;: . i ! ; * .' 1 / ;• .. , -. : ': •i " • * " ^ i: • ! .v - : • • •• • - ^- S£ *; • ( ^- . • ‘, f '. r-i-: .,. *Aijfc ' . .. ' • H - -AFOI A- , / ;: t ?vir ‘ • :',v.'' " ' hr1 ' . * ' % T i % \ * •; > ^ . ' \ v ;: ' - !; Ji Tv- Sf : ' . •> w-:.: .V * >:= ; j • .: . . : : ::•• ; f f : .: . ' .- = '• • - . '; • : ; > •. ' . J .ii. «1 ‘ , ' " • ; $ ' y ] ' v ? '* • ' - : • . f, .i • .: , .. . ; ; , JV H JV * •• : i. r . . .I- A - ' i ^ranmm =* 250 kilometers i , ,v • l: - ' ' .: : - : : 1 y . it > if/ gw ; ,. H ii inch ® ; 250 kilometers • " .-. .I. ,; ' • “ ^ :: • •• • 1 oMI e. o f :;aiZ :y. Mppiot the location of an epicenter? ; ry ' "V m ' ^ i ' -. .. > :.• :V 1 - .X . A '- • ; i. • • ' • ' • - an epicenter with only two seismic sstations? . What is the problem in tryin.§ to locate .•* . • ' - •• • • ' • ' • Hve 't .v -.f * OC. TOO "S ' 3 • .; . « f l U „ \ ,r ! are n cesS • • I .! •A . s' * ! = -.V: • :?V‘. " -' Vv :; ; 1 • • V ^r : . . • .: : - • ! vj ^ #'’FP. t vV . O , ? ' • }. .1 i •' ’• . > • 2 ,How many seismic stations .' */ - H •'• V v :; i n' .' \ . • t . : ': ; :• ! " ; •• 5 - .A . ?; V : :S • •! ' : ' 1. DSscribe where thee epicentef ' is in terms of tile Shsbe of the Lost Continent. tyrestiercs: • "r - • ; . ; r. • •• : •• ' ^ Il . * I . - •> r V .. . - .* ' *~« * ‘ ' • ^ ' ’ " ! ) .* •. . ; . !;[ V ‘ :* . .A . . / < !; s4 ^ h\ l * »* yv ; tW are^ 0 I • ^/4 i ! i / ‘ : J ® n. : Instructional Fair * TS Denison • • 53 .Earth & -5pscz Science ' ^ .• . : : - • i 1% i i