<br />.
<br />
<br />.
<br />
<br />.
<br />
<br />4....,n~
<br />
<br />ROS'Sl - fOR h
<br />INTUISITy SCAL.E.:
<br />t'183l
<br />
<br />I 11M .bock. idt b1 ..
<br />..,.r\~ed Ob..rrer.
<br />
<br />n I.c:ordltd by .e-t'er.l .el'-.o-
<br />,-nil-b.; hlt 'by .. -..11 n~e1'
<br />of ,..-rlC1:l. It t..t.
<br />
<br />m: ,.It b, le,"r,! penon, .t
<br />r..t; Itrol'll elloOu,gb for ch.
<br />dinert"", or dur.tloll [0 be
<br />.tpucl.bl..
<br />
<br />I7 r.le br p4UOIl' 111 -.oClon,
<br />di.turb.oc:. of ao.,l:Il. obJect.,
<br />door., ~~~; cr.tkine of
<br />..ll hal',
<br />
<br />% F.lt .eD-tUll, by everyone;
<br />dhcurtl.llc. of turulcu.u, b..d..
<br />.tc.; rlDctll& ot".~ bell..
<br />
<br />1!I G-<ner.\ _....enlrJ at thO",
<br />.ul..p; tln'ln, oJl bell';
<br />o.,ll\.tioll of ~h.odelltr.:
<br />~~~hr:l~~;'~[:~~~~l~j ~~~~.
<br />'.J(\' It...,e d1.Iel I 101i"_
<br />m Oor.rthrl1V of ..,v.lbl.. ,,1:1 Ieee.:
<br />t.ll 01 plurer; rlnlln, 01
<br />kl1.; ,.nlc, v1.rhout IU~u
<br />~j' toblllldln,.,
<br />:llm '.11 of chl.atl.,..; tuclr.. 11'1 the
<br />..It. of buIld In...
<br />
<br />Lt '.rtl.1 or tor.l d..trucr(on
<br />of .... b"t1dLq..
<br />
<br />X Crut dl.,uter; f"\lln9; J1Hurb.
<br />anee ot the Itur.. fluurel tn
<br />the 1T~k-h-H n
<br />I1tdlll, ete.
<br />
<br />MODIFlfO lll[RCALLl
<br />INTENSITY SCALE~-
<br />
<br />1 "t telt.. Karl1nal IDd loni-period
<br />.tt~tl of Ilr., t.rtbqu.k.e.
<br />
<br />lJ. P,It"by perloDe U r~.t. 00 ....pp.r Houri,
<br />01: fl'YOrl"bly pl.ce,l.
<br />
<br />rn 'elr lodoorl. ijan~lnll o,lbJ.ctl ....iDf:~-
<br />,(br.tloD Ilk. p...lng of ll~ht truckl.
<br />Duratloo..tLaated. !oily oat b. ucognlud
<br />II U tarthqUlke.
<br />
<br />Ill' &aoglnll object. .....Ing. Vlbr.Clon Llle--
<br />,.1.lll.1 ot ht,lI)' truck.. Stan,itn" lIIoto,lr
<br />clr. roelr:. W{nJow.. dtl~.e.. doorl r.ttle.
<br />Gl...~. clink. Io upper range of IV "'ooJ~n
<br />Will' .nd fr~ creak.
<br />
<br />--
<br />
<br />y relt outdourl; dlrectlon fltUn~ted.
<br />SI'eplllrl ",.kened. Lt<ju\d, dlHurb..d. DOelrl:
<br />niol. Shutterl. pl.:-tucu IlK'V~. P~rl'lu.L...:
<br />c:lack. .top, ItlrC, ch&nllf r.tt. !
<br />
<br />
<br />2I relt b, Ill. ~dnv fr18hten.~ and Tun our:-l
<br />door.. ...."011. "'"1k .m.tudllv. \oIlndo..... I
<br />dlllh... a1..."'.n b'"...".... !Iouk. ,,[t
<br />.hel...... Plcturu olf ....11.. f'lrntturt ~
<br />~"'ed or overrurned. Weak pt..ter ,nd
<br />.dob.. er..eked. Sma II br \~. rl "il,
<br />7lI DLltt':-ulc to le,nd. Notlce<l by drlvlllrl of
<br />..,tor e.rl. P.ll of pl..tlllr, l<>use brlckl, II
<br />[11... ete. S~, erllc'lll l,,~.onry. \oIavel
<br />0. poods. ....tl'r Curbld. SIll..ll IILlel, C.!l"-
<br />tnl of I.nd or s~avllll bln~5. L'r~e b~IJI I
<br />r In. COne reta {r~ t;r~t l,-,n ~ trche" J"ma Po:!.
<br />
<br />llDJ Se:.~tn~ ~;,..:o~~~t~:~'c~11~~~:':' ~~~a~&~o
<br />Y:l~ ~ c:hl..mneYI, lDurh"'\~'HS, el.vat..d {a"k~
<br />Fe... hou..el !DO"ed If not bc,\t~.l ,1<)1o'Tl.
<br />Iltancht. bro"'..n. Ch.ln!!:"~ In 'pr \n~g and
<br />IIIl11!lLs. Cr.ck. In Wet ~rQ'.1l\<:l .nd on Iteep ~
<br />110(141,
<br />n (i,aonlllr.l Vallie.. W..k "'''60'''' 6e'troved, ~o<Jd
<br />_Ionrr l..rlou,l) LU!1.JKrd fl;r.",.. 5lrLlCturl'Ij
<br />.t~~~ ~~Jk~a. ~~f!~~~ 31~,~~~f~~~J~~~vojr~
<br />Ond.rBround pJp~' br ,ken. Cc""nd e raekeel,
<br />lanrla.ndlOud ejected, ...nhg'.1".... r"untalMI,
<br />lolnd craterl.
<br />
<br />loI"" t Ilol'onry and (ea!1"." .t "lc:t"reo oj~"c t'1,,<t<i
<br />with their {oun,t.H(on... Sl'rle".'! dvPl<l~e to
<br />t1lIbanjOTt~nt'. Urge. l..n,lIildl'''. ".!Iter tlur,.......
<br />Oil bank, ot c.na II. 11"e~.. Jake', I'r.::.
<br />I.ll, b~"t allahtly.
<br />
<br />D bU, bent (reatly.
<br />lh.,. cOIIIpletely ,"ut
<br />
<br />--
<br />~der&round pive-
<br />of leI"Vlel'.
<br />
<br />m DItll.&&. ne'rl"j' tQtal, l...&q~e ro.;" ....."11.1I'...
<br />dt.v1ae.ed. Line. of light an<l \e.,el
<br />d1.torted. DbJacCI chro'oll\ into the air.
<br />
<br />I
<br />J
<br />
<br />APPROXIMATE RELATIONSHIPS: EARTHQUAKE INTENSITY,ACCELERATION,AND MAGNITUDE
<br />From; U. S. Department of the Interior, Bureau
<br />of Reclamation; Method for Estimating
<br />Design Earthquake Rock Mo1lons, April~ 1972.
<br />
<br />III-I8
<br />
<br />Figure 1II-9
<br />
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