Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

1

Module2,Lesson1TheearthmovesInthisactivity,youwillobserveworldwidepatternsofseismicactivity(earthquakes)andvolcanicactivity(volcanoes).Youwillanalyzetherelationshipsofthosepatternstotectonicplateboundariesandmajorphysicalfeaturesoftheearth’ssurface.Thenyouwillidentifycitiesatrisk.Task1:Openthemap

1. Launchaninternetbrowser.a) Gotothislink:

http://www.arcgis.com/home/webmap/viewer.html?webmap=47bbca89d7b8451ebbcf952bd18172f6

2. ClickontheModifyMapbuttononthetoprightcorneraboveyourmap.

3. Ifyouwouldliketocompletethislessonandsaveyourwork,clickontheSaveAsbutton,provideyourloginandpasswordandprovideanewnameforyourMap.Ifyoudonotwanttosaveyourwork,proceedtoStep4withoutclickingontheSaveAsbutton.

Note:ifyouhaveissuessavingyourdocument,gotothislinkandfollowfurtherinstructions.https://www.dropbox.com/s/25g07fiof7ceq9q/Opening%20the%20right%20map.pdf

Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

2

4. ClickontheShowContentsofMapatthetopoftheContentsareaontheleftofthemap.Whenthemapdocumentopens,youseeamapwithfourlayersturnedon:EarthquakesMagnitude5.7+(2004-2007),Volcanoes,ContinentsandWorldImagery.Thecheckmarknexttothelayernametellsyouthelayeristurnedonandvisibleonthemap.Task2:AnalyzeearthquakelocationsYouwillnowcomparethepredictionsyoumadeintheSupplementaboutearthquakeandvolcanolocationstoactualdatausingGIS.

5. TurnoffVolcanoessothatonlyEarthquakesareshowingonthemap.

Thepointsshowthelocationsofearthquakesthatoccurredin2004through2007andwereamagnitudeof5.7orover.

Answerstoquestionsinthisactivityshouldberecordedontheanswersheet.

! Q1:Doearthquakesoccurintheplacesyoupredicted?Listtheregionsyoupredictedcorrectlyforearthquakelocations.

! Q2:Whatpatternsdoyouseeonthemap?

Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

3

Task3:SortandanalyzeearthquakemagnitudesYoucantakeacloserlookatthedatabehindthedotsbylookingattheattributetableoftheEarthquakeslayer.Anattributetablecontainsspecificinformationaboutthefeaturesinalayer.IntheEarthquakeslayer,eachpointrepresentsanearthquakewithamagnitudeof5.7orgreaterontheRichterscale.Youwillfocusonthe20strongestearthquakes.

6. Inthetableofcontents,hoverovertheEarthquakesmagnitude5.7+(2004-2007)layer,clickontheShowTablebutton.

Youseetheattributedataassociatedwiththeorangeearthquakepointsonthemap.

7. Scrolldowntoreviewtherecords.Remember,eachrecordinthistablerepresentsonepointonthemap.

Nowyouwillputthemagnitudesinorderfromlargesttosmallest.

8. Clickthefield(columnheading)labeledMAGNITUDE.ThisfieldrepresentsthemagnitudeoftheearthquakesandaSortAscending/SortDescendingboxwillappear.ClickonSortDescending.

Therecordsarenowarrangedfromlargesttosmallestandyouwillselectthe20largestearthquakesfromthelist.

9. Clickontherecordthatisthefirstinthelist.Whiledepressingtheshiftkey,clickoneachrowuntilyougettothetwentiethrecord.Youmayneedtohitthedownarrowofyourkeyboardtoseemorerowstoclick.Notethattherearenowearthquakeshighlightedinblueonyourmap.

Tomakesureyouhavehighlighted20earthquakes,lookatthestatusbaratthetopofthetable.Itshouldlooklikethefollowinggraphic:

Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

4

! Q3:Howdothe20selectedlocationscomparetoyourSupplementmap?Listthreeways.(Youmayneedtopanyourmaptoseeallhighlightedearthquakes.)

10. Atthetoprightoftheattributetablewindow,clicktheTableOptionsdownarrowandclick

ClearSelection.

11. Closetheattributetablebyclickingthe“X”inthetoprightcornerofthetable.Task4:Analyzevolcanodata

12. TurnofftheEarthquakeslayersandturnontheVolcanoeslayer.

! Q4:Howdothevolcanolocationscomparewithyouroriginalpredictions?Listtheregionsofvolcanicactivityyoupredictedcorrectly.

! Q5:Whatpatternsdoyouseeinthevolcanolocations,andhowdotheycomparewiththeearthquakepatterns?(TurntheEarthquakeslayeronandoffasneeded.)Thedataincludesvolcanoesthatarenotactive.Youwillfocusontheactivevolcanoes.

! Q6:Formulateahypothesisastowhyvolcanoeruptionsandearthquakeshappenwheretheydo.

Thedataincludesvolcanoesthatarenotactive.Nextyouwillfocusontheactivevolcanoes.

Ifyouselecttoofewrecords,depresstheShiftkeyagainandclickontherowsthatyouaremissing.Ifyouhavetoomanyrecords,depresstheShiftkeyandclickontherowsthatyouwishtostophighlighting.

Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

5

Task5:Identifyactivevolcanoesondifferentcontinents

13. IntheContents,hoverovertheVolcanoeslayerandclicktheShowTablebutton.

14. ClickonthefieldheadingTypeandclickonSortAscending.Scrolldownthetabletolookatthedifferenttypesofvolcanoes.Asyousee,theTypefieldtellsyouifavolcanoisactive,potentiallyactive,orsolfatara(emitsgasesbutisotherwiseinactive).

YouwillviewjusttheActivevolcanoesthathavebeenfilteredoutinadifferentlayer.

15. ClosethetablefortheVolcanoeslayerandturnontheVolcanoes–Activeonlylayer.

16. Clickanactivevolcanoonthemap.Thepopupwindowshowsyouthenameofthevolcano,its

elevation,type,andcountry.Forexample

17. ClosetheIdentifywindowsoyoucanseeyourmap.

18. TurnontheCountrieslayerandturnoffthecontinentslayer.

19. Usingthescrollbuttononyourmouse,zoomintothecontinentofyourchoice.

Remember,youcanzoominandoutbyscrollingyourmousescrollbutton,andyoucanpanyourmapbyholdingdownthescrollorleftclickbuttonsandmovingyourmouse.

Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

6

! Q7:Clickonactivevolcanoesingreentofindthenames,elevations,andcountriesofthreeactivevolcanoes.

20. Zoombackoutuntilyoucanseeyourentiremaponthescreen.

Task6:PlateboundariesandPhysicalFeaturesTheearthisalwayschanging.Thecrustoftheearthiscomposedofseveraltectonicplatesthatarealwaysonthemove.Theeffectsofmovementaremostnoticeableattheboundariesbetweentheplates.

! Q8:Basedonthelocationsofearthquakesandvolcanoes,wheredoyouthinktheplateboundariesare?DrawthemontheSupplementmap.

Youwillnowinvestigatethelocationsofplateboundariesandtheireffectsonadjacentphysicalfeatures.Thefourbasictypesofplateboundariesare:

• Divergentboundary.Oneortwoplatesaresplittingapart.Newcrustisbeingformedfromthecenteroftheearth,causingtheplatetospread.Riftvalleysareoneexampleofthistypeofplatemovement.

• Convergentboundary.Twoplatesarecolliding,forcingoneplatetodipdownunderneathanotherone.Theplatethatisfoldingunderhasoldcrustthatisbeingdestroyed,whiletheplateontophasmountainsandvolcanoesbeingformed.Intheocean,theseappearastrenches.

• Transformboundary.Platesareslidingagainsteachother,causinglargefaultlinesandmountainstoform.Here,thecrustisneithercreatednordestroyed.

• Plateboundaryzones(zigzagged).Plateboundariesappearerratic(zigzagged).Scientistsbelievetherearemicroplatesintheseareas,butitisunclearwhateffecttheyhaveonthephysicalenvironment.

21. TurnofftheVolcanoes–Activeonlylayer.

22. TurnontheEarth’sTectonicPlateslayer.

! Q9:ComparetheactualplateboundariestotheonesyoudrewontheSupplementmap.Recordallsimilaritiesanddifferences.

23. Inordertogetacloserlookatphysicalfeaturesandplateboundaries,turnonMajorPhysical

Features.

Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

7

24. Clickonthemaptoidentifyaphysicalfeatureorothermaplayersyouhaveturnedon.

! Q10:Arethereanyareaswherephysicalfeatures,plateboundaries,andseismicandvolcanicactivitiesoverlap?

! Q11:WritethenamesofphysicalfeaturesinthefirstcolumnofthetableontheanswersheetandlabelthemontheSupplementmap.Thefirstentryinthetableisalreadycompletedforyouasanexample.

! Q12:Inthesecondcolumnofthetableontheanswersheet,writehowyouthinkeach

physicalfeaturewascreated.Refertothedescriptionsofthetypesofplateboundariesonpages7and8.

Task8:Identifymajorcitiesathighorlowriskforseismicorvolcanicactivity

25. TurnofftheEarth’sTectonicPlatesandMajorPhysicalFeatureslayers.

26. TurnontheMajorCities,ContinentsandVolcanoeslayersinthetableofcontents.

27. UsetheZoomandPantoolsandclickonthemaptoidentifycitiesthathaveahighriskorlow

riskforanearthquakeoravolcaniceruption.

Mapping Our World Using ArcGIS Online © Esri, 2002-2016; CC Attribution-NonCommercial-ShareAlike license

http://edcommunity.esri.com/MOW Module 2: Lesson 1

8

28. YoumayliketousetheMeasuretooltolearnthedistancefromvolcanicandseismicactivitytomajorcitiesbyclickingonceonavolcanoandthenonceonitsclosestmajorcity.

! Q13:Listfivehigh-riskcitiesandfivelow-riskcities.Remembertoturnlayersonandoffandmovethemaroundasneeded.

Inthislesson,youuseddifferentlayerstofindthelocationsofearthquakesandvolcanoesaroundtheworld.Youwerethenabletoidentifycitiesathighorlowriskforseismicorvolcanicevents.