Loading...
Plans (102) ct (,cQ, ;c2_c_\c _!(._. Sk- 0 1300 ,‘,,,,,I.Apli, C), 71 1260 122°W , PORTLAND cc 52°N Cascades NORTH AMERICA Pi-ATE rt A, Coastline CRoaansgetal ........sweakm..........••••••••••••••0•••••••0•0.•oppoodie....4.0.. ......4............ V17 1 i A British ,.,.. -61' - .1 Columbia 1 i t 1 1 1 I ' -- - 124.5 124.0 123.5 123.0 122.5 122.0 121.5 A MA ,rz LONGITUDE 7 „ ••• 4 k.„. . "4- EXPLORER _A N.N, PLATE 74 Vancouver `51o,„ Jr c - - DISTANCE IN KM - - Crustal faults ,<,. c?,.) .-•‘, ,e• \ / A 00//I ..44 10. 30. 50. 7o. 90. 110. 130. s150i. n,170 . It.lii1:9:0. in210. 1i2a7:t30A:11:10 2570:0. 270.- 290. / 0 - - ictria A48 ' . . - 49, to 10. ''. o j' 4M Seattle to. o ° . ..........._... . 0 0 • 1 ......•)./ ip . 0 • '.i.'1'.. :k: • . o 0 30. 0) 0 A 30. cni) zy0 .• • • D" North America Plate o e tt (f) Washington c 0 . 7 a ' A A Plate ail Crustal 50. C cz44; JUAN DE FUCA c),,.. al i le Interface at?,,,, we A.,. seismicity 0 - eg / .., - Portland PLATE 0 A z 70. wee p, ....,.............................N /ate _ 70. -.) / / l' ,•• 0 90. Intraslab earthquakes _ go. • t!;/ = c , CD ri) - 44 0 A lia. _ 110. ...,(.. ...,,, 00,,,„ .,.... ...... Oregon 130. 130. 0,10 .c A i 5 .......s...... .'....N‘%%. ....7 () Ak > 150. 150. -,. I 1 t t PACIFIC PLATE , .... _. - --- - ... 124.5 124.0 123.5 123.0 122.5 122.0 121.5 e t A LONGITUDE ( PLATE z:7 GORDA California DEFORMATION B) EAST-WEST CROSS-SECTION THROUGH WESTERN OREGON AT THE LATITUDE OF PORTLAND,SHOWING THE SEISMIC 0 200 km Mendocino Fault tp 400 SOURCES CONSIDERED IN THE SITE-SPECIFIC SEISMIC HAZARD STUDY(MODIFIED FROM GEMATRIX, 1995) -,t.N1;.% Glt 49, 94 A) TECTONIC MAP OF PACIFIC NORTHWEST,SHOWING ORIENTATION AND EXTENT OF CASCADIA SUBDUCTION ZONE(MODIFIED FROM DRAGERT AND OTHERS,1994) G R 0 III TECTONIC SETTING SUMMARY JUNE 2017 JOB NO. 5970-C FIG. 1C "' `� .. ti • - ,1-4,,.,:•.- ' ' ` G # ¥- (� € ,fit*` z; , ' a ;'San ",;r <' t,¥s k;r °"' q ,; „r$ ." o .{. -- j., ,. �C -.`'.. };,f ..r.::: :_L:z- +. st :: $>•rz s.. r {■ %„ ;.'•,ice / : y x ..".. ...... #.... _. Y 'ttc ti:L l "°*. # .' .aw ¥_4t "? k ,,, ;',, hLC *7�• A 'AY, l' � .<. :� a jC. :� rfl$`. ..►':4 I, -1-.\-.).” r,,..i, �>o ga t a .yc : 4 $g ? /, ,. .: j a, gi�pp,, � .. -,_4 .- :„...-.'• `'� : - _ �.. ,;; _ _ FRrst- .. to *:„;b„ .:;.,u 33 .,,: "'...a„, .'� s ''+? a ''a,. y ,,+ ..0'}'4 r • ".nF:. ..�{ Tim ._ ,�. r -( ',:. s ¥• ."',••1,5t1',-.;;;;;;,5, „8 ,' aro- #.s r`�” Y= ` '„ s - w»,.,,,,� ....._ � • 1.: a. i :,�;fi•. ,. '''...j'... -f ,- , -• ,.., t... '��... 'r�� tiz ,f>:� :.�� *z, b ,r '� �.� s� �' • • '< � �. ', -_a,.i... :._.. � _F ...... ....�....__• .`.^� .I ...,.," ...'..14,-.,,,..' � -:.: 5:..�.'"* ::'�y �4 '�"•' ar+"r �' a �' .xCa:'wY �� l . �7., TSS Oak:. Z., tis st I;',4 5 tz.� s? a `f a;., a.,t r K��T'c Tmst ., .,, 1 • �a - sa} �1 '1'44 r., lr. - ° a„� tea c„„` s°:: ,r-'a 7 (.� ". r =` { _ _ v_ ''.. i; P, ;.�';.4i4.'" ,..: 71.:... 1110"' tw '"':.: r u5 ° �� ,, w°' e' i.,� ":... } - -4 ter_ , �, '.. P 'C '*u ' .' 3, `TS5 ""I' _.,a Y , `a -<`T.-s 'f .t.x . :: :xw : ,; .:�_ H t t' Vit „, "'9m*� x*r > v:.-; .!'n.3F'Sv :..n > ..:, ,l-,„ hr , '}: Kt .>3 "' ,�"�' :„'. r " a b( iMr •�`t�if ..".'". `` -4cr r t Y 1;, .. un..,�! " a„� •:z.: i ,r`* .' ,, s 'aWg. ,., , #¥v mss; i sy r:. .w �_ • - .....-.._._ ....... ¥' .'�.... _.. 1 • i $ Mme, '*r ' 3,>- x � * � _c,, ,,, ,, • • , �� � �'IM_��ly,�� ,..r'_....- '.:r � .._ .-: . • ts'a � ... -��.�� l,.t - �a .F:'.� ,�t � �' est ` _. - I .+'�„„ m .y i -�-+,.,,� _. :,s - -• r`y{iS t' ,• }'\, q .-:i... �„y, �. { ry _ z � �r�u, �./` ,.4'1 ;.�� `tom �' ltvf , 8 � > �t � §Y f t erur� 1+11$ .,.I \„-"•. - `,.f r6,-- r- r .. ,.� • v. }'$4 . �';' Tt1 t' _ „1,... ..t. y s Y t sm , a,: • t • r elk.. i .^>`. $....,,,.,.� l�� as,'`.T,-Y a,,'' - - - • ''°. �•':: a 5 a a, .� • 4 `r `. i / .M' .„' ': r ° ” ''�. '" ..--..: ,d"`.=G' ._, r_ ow e 4x - ...;-•: ,,,,,,-..'.:::,,-;,,,—.'T.•,•,.. ✓'" i �.t'- : 3 �, 'y ' ' ::^a+»» *my - � #•1Y. 1 •'#". ss .an. �:` .3* r ..� ,,, ,�... rr ;,ems.."ra.,. i '"'=,-.--4�# -y..-. TC}` �..,®;,,iv'r,rv,' .x ,r�. _ :.. %.' '* { :., .d,. -^`! p :,.,- -�e. _ f. ����,,,,���� t:.."�.,' '>'a --;:-..:4::',7:::.-'7,7-- ;: °v '.a "r*';ew r :.tea4';.:41;'..'''. :.� � '-a> ,, •I,••_.! '...'y _„7:-..-,,,.,r TY ': ,.. t 1:.... ; , • Tc :\ tri a> °,,� .\ �a, • • ... . ../ ....-'. ,"-------4-)3,,,,•• :. , :.. $ 4^„ "`}Z,<g. '. • v a• ..A, :k y'» .� ,1=yt >717.....;;1-2---.1,•;'"." aar a . 1. • .,. �> - ..��_:1 r � . Ttv? „• b _� \,: `:�Qal �� °_ ,,>s ' .��af�„ • Tcw'� r' t tI rt }..:;..�`$t �. .' -`: " •' � .. _ ,-,,,,:-.,-;,-‘, .,•,....r•-."� "�:..<� h•rk aa::�� 'mss,.,_..Sr) "�.c'` ,��J� >>j� 1.rZ-9' _::� �/" 44- /1)) ;^� ..rte-• ��'Y' �� k���,•� 1 �,...� arv'°4-'�� ` 4 `ai_ _ - ¥�yt,; ��: .>'ub�+�7'.S':z`y.zr r ._. 'r^•.,y�'-",� .r,�,F E • ! � T TY;` 7sr ,t s .. (Tad �� � o • �'� n "fit.,, 74".:‘,..--P' „ti .. K. . ..� Titv7{:herrn^,'�Y ^"^.�! � _ �t � Fsr • • �b� §t�,'t-~'i i`.Y - � .rtCx ”-•�4...,..iz: .........,,_.^..:: :<; ,\ ?( d` •'. 9A ?.i i k'w 1 QTS . 4'^ "� i r Ttv�` „qR„3, - � � . � � .4___....„..,. ' �� � r � • `��-�...�' a. _. _........ �.. _.. .. �. i . *' ° t q t \' ✓..,�-` s*` .l< .d !�'' ' ,.7' :fi: j • - '}'�• - ,�,� I)•,-, - � \,t�r>:�-�-�:`�� _ '•..r'"\ �-v"^,..�..++ QTS i ,� ) .•.,,.: � p�<� t..., �: ibis. r*- �. - <' •., :. • � �� • ,��,�.•w.. ,,,s` Tmv • S� C Qls a,�. Tb.. ..� a! . � u ..,.,,./...,..N: "`44 '4 ;+fRt Y �y `+> �„I j+* 4 .-.1� iti1-\\4:•;;;:..1 . ",t' i - • ;}^ „ t � i I at. ; .r •� tw n13. s l H' 'c. .,4 FROM: 7 s • _✓... J'�`',>�.'.� < ..�.. ,..._.....`_..i - � �.y..• " .. ,y,; .�,�7f1•� Y}' '�� .r` o"*!.. ,'2� i_<3'1,7Ct�' ?9l - si '1-;-`1' ! t �sT `t: �V '�' .,;t'..:.�;.s6,.� .;.. .. ";'n+p �„' TC-c'. ,'f`. ..�.; 'r r2 ;.1' �'� -__ .,� }, .div � �; � � rF • ,..„,,-....41i,,::::.......:....,,,::;...1:::.:., `• i+l -.k`'...:!,!'."',-;',.et,'' Ty - r-? • >� I �` ' �" �'; ,, �'�", WALSH,T.J.,KOROSEC,M.A.,PHILLIPS,W.M.,LOGAN, RI.,AND SCHASSE,HM., , >'.�Y1P(i� '� .. ��,',. ", �'.' . , `)ie� �a ry, I � � , '-�.1 P' ;! .. `ter. '�_°�'' .d ••• 41 V T 1 4 Q - '' t ti ° 1987 GEOLOGIC MAP OF UADRANT'1:250 000: Tse r, I Q r: :' .1.�/-Y�"'-46, ..._,,,,..',..,,'—..„'•- • - ..<...,.: «- ° # Y ;f -..t?.-;,c"' rAa.�y�_ • : n`''1 P't•,;.:f"r 1, # -... r # f:• '��` .....`.r•. t,,;`T ,,,,aft•. `L� ` i.'L'.i.� , R '.ytyp "...y . �" ` ■■ ii _; .'''''n,---.'. f". t'_L ;:'. ,,, ...'`'"_ ;; ,W . Al:>hitr, Y�:;"': WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES,6M-34 1 I r '... ,,,,,,,,: - ' 1 TAY 'd t'. .mt°w a' WALKER GW.ANDMA LE D N . 1 1J ,...._Th, , Tti ' • t / 4 /i& } '. QT.,. c : C 0 , S, 99,GEOLOGIC MAP OF OREGON:U.S. ai. . 'a � ,,. . 7i T o-a .:: GEOLOGICAL SURVEY _ .• .. � _ > ✓' .'‘.....t.7.--•_•:::•::„.".„,„ ......, ... ,...w.,4',.-;,. < : (jj R 'q � � ..a t sX •'..:.. .:.. :� ,. . � � ,- ,•/... _. r i>i<'"•� -... -".-•.._.,' ';J -.-. r' � r � � .t[� Hi�Fiaa.!gil>t� 1c _ •. „ (_.,,s,, ..r%:`.�$Y.� „ a�f "" :. �1 ,A.±!,-"-, iSt F��.:.r;:.! .. ^~ 4 �.. � ��!Y.rw {r I y ��� :� i(( � 7' .'. ..?."' � .•+' i t Qat j....\,,,,. '.,ter �..� Y Tss Ttvm? ?: \� ='. „ TsTfC7 s " r # t '.:';. ' ... , k> ` ; e • ;i. . .6�. " Ar � '� T#c? a f: 2 MILES •:' isoltlAr 1:- : '.f ' I ;Z.J� , r 7 { 0 10 20 KILOMETERS a'xc a1,_: _.. kr 3_..-:hi s . a . .4- i • Y.. „i� ;rr ;, ''f': r ,.. c'1f t `':.'q�... t j ,. ' t� t `�+ "^ i o °1St I y} YT J¥•r.4 . t iJ TY "•ter? , ., #iT I K• nt c t .. ... _ 'f``�1•�.��, • ,Tub` �1 t•-,.^ry�� �.� r ,�, Contact—Approximately located 1 rl• G 1 El • • —I—?—••• Fault—Dashed where inferred;dotted where concealed;queried where doubtful;ball and bar ondownthrownside REGIONAL GEOLOGIC MAP ? •A• Thrust fault— Dashed where inferred;dotted where concealed;queried where doubtful; sawteeth on upper plate Strike and dip of bed JUNE 2017 JOB N0. 5970 C FIG. 2C Kelso EXPLANATION • - --------r �— TIME OF MOST RECENT SURFACE RUPTURE STRUCTURE TYPE AND RELATED FEATURES s \ - - — Holocene(<10,000 years)or post last glaciation(<15,000 years;15 ka); —,— Normal or high-angle reverse fault no historic ruptures in Oregon to date a Strike-slip fault Gearhart \ — Late Quaternary(<130,000;post penultimate glaciation) Thrust fault l — Late and middle Quaternary(<750,000 years;750 ka) —j— Anticlinal fold side`` \ — Quaternary,undifferentiated(<1,600,000 years;<1.6 Ma) —)— Synclinal fold W \' — Class B structure(age or origin uncertain) -(— Monoclinal fold SLIP RATE �— Plunge direction of fold ,. Fault section marker >5 mm/year 1.0-5.0 mm/year DETAILED STUDY SITES Bchsr '''. ). 718 St. Helens — 0.2-1.0 mm year z Trench site pe 1 / <0.2 mm/year '✓� CSubduction zone study site / 781-2 ,_,,� ,�f TRACE arn . Mostly continuous at map scale CULTURAL AND GEOGRAPHIC FEATURES to ,,,,./10,, •- I ' ,v 5$O Mostly discontinuous at map scale s•'" Divided highway 1 Inferred or concealed Primary or secondary road ti s " �._,_ _ Permanent river or stream - x;$77 • C'1 f` Intermittent river or stream � , Vancouver �•� Permanent or intermittent lake ach ---- --'____7',"__'_-; .. t°� ,714 , w Garibaldi ��'�, v 8 67 80 8 '''y. \ r FAULT NUMBER NAME OF STRUCTURE r'�, f�� 714 HELVETIA FAULT E3ayCity �� Forest Grove ;,,, ` r ,_Y - `„ ��y $7$ 715 BEAVERTON FAULT '-„F-',. 716- > v Hillsboro 8784 716 CANBYMOLALLAFAULT �., . ls� -- w T� �� $68 d 866 8$2 - �, 879 •- ''--- 717 NEWBERG FAULT Tillamook ' 715 's`i- ' ,�( 71$ ti . d ' 718 GALES CREEK FAULT ZONE `"� ",/,--,.2 ''; s4' •.r d,, ,is 719 SALEM-EOLA HILLS HOMOCLINE • ID O I k f a n d 864 CLACKAMAS RIVER FAULT ZONE ,, i ,, 781 6; �� l �� SITE � � "`' ; 879 867 EAGLE CREEK THRUST FAULT 874 868 BULL RUN THRUST FAULT 12 717 872 WALDO HILLS FAULT X12 4r,/. 8,'.i Area of MOUNT d'Newberg 873 MOUNT ANGEL FAULT 9 Portland map HOOD 874 BOLTON FAULT McMinnville Canby , 875 OATFIELD FAULT Dayton �', 876 EAST BANK FAULT Hubbard ',716 877 PORTLAND HILLS FAULT ti 878 GRANT BUTTE FAULT Molalla Woodburn 879 DAMASCUS-TICKLE CREEK FAULT ZONE Sheridan v 880 LACAMAS LAKE FAULT Amity ` ..., 881 TILLAMOOK BAY FAULT ZONE Silverton 873 FROM: PERSONIUS,S.F.,AND OTHERS,2003,MAP OF QUATERNARY FAULTS AND t trit FOLDS IN OREGON,USGS OPEN FILE REPORT OFR-03-095. Salem .j. Dallas 7191 / I / Independence (` ,''872. 864 Monmouth �` / R't I 0 10 20 MILES 884 ---1.-871 8! \' Z 871 Stayton ,` i , 0 20 40 KILOMETERS x"719 �' Mill City • GRA LOCAL FAULT MAP • JUNE 2017 JOB NO. 5970-C FIG. 3C