<br />V~I1,. Up"pnrn;r T~!lnl ~ncl sllh"Pr]1Il'nt flnnding of tht' Plt'~"~ntnn PI~nning Arp~ _ ~r,' rnn"idl'rpd tn
<br />h~vl' ~n l'ytr,.tnl'ly 1n", rotPntl~l fnr orrllrrpnrp
<br />
<br />Earthquake Fault Zones
<br />
<br />The A/qlliJt-Pli% lIaifllYIJ Ad passed by the State legislaturc in 1972 (rcnamcd the A/qlliJt-Pli%
<br />Earthqllake Fall/t /.ollillg Ad in 1993) cstablished carthquake fault zoncs along faults considered by the
<br />State Division of Mincs and Gcology to bc active or I'otentially activc. An activc fault is considercd
<br />onc which has expcricnccd surfacc displacemcnt within the last 11,000 years, while a I'otentially active
<br />fault is a fault which has movcd during thc I'ast two to thrcc million ycars but not provcn to havc
<br />movcd within thc past 11,000 ycars.
<br />
<br />'[be State Geologist designatcs "seismic hazard zones" and the State issues earthquake fault zonc maps
<br />to assist cities and counties in avoiding the hazard of surface fault rul'ture. The earth(luake fault zonc
<br />cxtcnds for 500 fect in width on cithcr sidc of an idcntificd fault tracc of major active faults and about
<br />200 to 300 feet in width on either side of a minor active fault, as designated by the State. Dcvelopment
<br />of a building for human occupancy is generally rcstrictcd within 50 fcet of an identified fault. Thc
<br />Calaveras and Verona Faults arc thc only faults within thc Planning Arca rho' ,Iw S'o,p currcntly
<br />dcsignatesd as Alquist-I'riolo Earth()uakc Fault Zoncs \'y II.., ~;tal~ (scc..Figure V -5).
<br />
<br />'"I1l(> rllll'o"p of thl' /11111irl_Pn"fJlfJ Fm1hq1ll1bp Fmdl /.fJllill.!j /11'1 i" tn rrpvpnt rnn..tnwtinn nf nl'\\!
<br />hllilcling.. flrrn".. kno\vn !lrtivp ffllllt.. in nrclt'r tn flvnicl "lIrfflrp f!lnlt nlphlrp h!l7f1rd 'I1,P Art prnhihito;:.
<br />rbeing Ino"t "tnwtllrp" for hllm~n nerllr!lnry !lrro,,, tr!l(('" nf !lrti"p f'llllt.. thll" m,it'g~ltlng cl'lnl'lgp t111P
<br />to "Ilrf!lep f!llllt nlrtllrt' !lnd not cl!ltl1!lW' thlP tn grnllncl dl!lking
<br />
<br />Whcn construction of a building for human occupancy is proposcd within an earthquake fault zonc,
<br />tIll' rity rPt]llirp" th!lt !l clpvt~lnrpr "Ilhrnit ~ gl'nlngir rt'rnrt 7 'l1,i" "httly prp"pnt.. c'nnc,lll..inn" rt'!rrcling
<br />thl' lnr!ltinn !lncl t''I'i"tt'fH'P (nr 'l1",,'nrl') of 'lctiv,. f!l111t" :It till' ",itt" 'lnd !"Ikn ront!lins.
<br />rt"cnmml'n,btinn.. for clPtl'rmining lmilcling ..pth!lek cli"t!lnrl''' from tIll' id,.nt1fi,.cl f!"llllt" a
<br />gli;ukdlll;\"'(11 ;lIvli;:)t;gatiulI i:) J\.';I..IU;H.;J allJ IIIll:)l Ll,.; ;7)uLllliul,..J Lv tin,; City CVI 1 1,;'0' il,;",. Tlli:) :)LuJy,
<br />}lI\;pan;J Ly a l\.,;g;:)LI,.;II,..J g\..-vlugi:)t, PII,;:)li;lIb \,..ulldu:)ivlI;7) Il,..galJ;lIg till,; lu\,..atil.J11 (IlIJ \,;hi:)kll\,..\,; (VI
<br />aL:)I,;II\,..I,;) uC ad; VI,; raulb at tin;; :)iL\; auJ abu \"'ulltaill:) 1\;I,..VIIIIII\,;uJat;ull::'t fLrl Jdl,.;J1l1ill;ug Lu;(Jillg
<br />,d\'"d, di,["""", flVl1I [II" iJ~II[ili~J [aul!>. 'Ibc City's consulting geologist rcvicws the reports for
<br />acceptability.
<br />
<br />TIll' invl',tig;ltinn of "ite>.. for tl1(~ po"o;:,hlf' h!l7!lrd of "llrf!lrt" f!llllt nlphlrl' i" !l ,liffirn1t gJ'nlngir t!l"k
<br />~f'ln)' ~::J("'t1Vl" f~llllt.. !l;rl" romplp'V rnno;:.,o;:.tlng nf tnllltir1p hrl'f1k" 'lnd/or 'lre' diffirlllt tn find n"f'p ynllng
<br />!lllllvilltn ,It'rn,,iN, for (>Y~fnrll", nft,.tl rrl'vl'nt l"Vr1nr'ltnry trl'nrhl''' frnn1 rt''lrlling n1pt11rt'd ..nil..
<br />m'lklng lll'tl't-rnining !"I f'll1lt'" IO(''lt1nn 'lnd 'lct1vity cliffirlllt In ..om,., in,t-'lnrp, f'llllt tr~rl' invpo;:.ttg!ltinn"
<br />rnnrlndf' th!lt 'l givpn f'.1111t tT~Jr(> i... "inff'rt(>,1" nr "nh"ellrf''' "nth nn elt'flr ,l,.lin"!l;t1nn nf r"(','nt f!llllt
<br />nlrhlrc' Fi~}l)r" V_I:) inrllld,." thl' folln\\llng fntllt trnrl' 'ypp'"
<br />
<br />A \"pIlJnr'.1tp,1 f'.1111t tr!lrl"" 1lI1'lmhlgJloll", p'l"i1y cli,,('prnt.,l, 'lnd 'lrcllr'ltl'ly Ine'ltl"ll
<br />
<br />7 ~l'nlrWr <:hufil'<: <In'' rr"'r<lr...~ hy ':1 r'CIlifonli<1_rf.w<:tl'r[>(1 wnlr~d -::In.! 'lCt~r..<::o;: f"l111ting d....p... <:t":1hi1if)', I"rn<:inn, ';:f.io:o,irilJ',
<br />':1n.1 rf"l":1tpd h'.I7"U.h: Gf"f,t,.rhnir":11 png;nl"i'ring <:.hulil"<1. ":In'' rrpp'.Irp,! hy r<1lifnrni'l_r.'gidl'r'.,.-l png;npl'n: -:In.t -:1tlrfrpo:.<:
<br /><:l1h<:l1rf'lrp <:nil<:, .lr":1in"l8''. <1iul ntlu.r rnn,lit1nn<: for rUTn.w<:. of ,fp<:iw,ing fnllnlbtinn<:, p,:n''''YH.nt<: rPt'lining nT":1Il<:, ':1n.l
<br />nth,.r i,nrrl\Vpn\Pllh: '.lfff'rrp.ll,y <::n;1 rnn.firi'Ul<::
<br />
<br />Public Safety 0R2906, n-dline
<br />
<br />V-7
<br />
<br />City Council 8/29/2006
<br />
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