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It explains core vocabulary including magnitude, intensity, depth, duration, aftershocks, faults, and location. The material distinguishes magnitude as a single energy measure using a logarithmic scale, while intensity reflects site-specific energy delivered with multiple intensity levels and associated shaking and damage descriptions.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/earthquake-hazards-and-earthquake-risks-in-the-central-us/493660/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/earthquake-hazards-and-earthquake-risks-in-the-central-us/493660.png","ImageObject",300,407,{"name":92,"@type":93},"Riley West","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-07","2026-10-01",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the difference between earthquake magnitude and earthquake intensity?","Question",{"text":112,"@type":113},"Magnitude measures the amount of energy released and uses a logarithmic scale, with one magnitude per earthquake. Intensity measures the energy delivered to a specific site, so many intensity values can apply to the same earthquake.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why does earthquake intensity vary by location?",{"text":117,"@type":113},"Intensity depends on location and population distribution. The same earthquake can produce different shaking and damage levels at different sites.",{"name":119,"@type":110,"acceptedAnswer":120},"How does earthquake depth affect shaking and intensity at the surface?",{"text":121,"@type":113},"Shallow earthquakes produce more energy and intensity at the surface. Deeper earthquakes generally deliver less energy and intensity at the surface.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},493660,1791322879,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},1099523885074,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","AFP  \nAssociation forFinancial Professionals°Annual ConferenceOCTOBER 27-30,2013 |LAS VEGAS  \nORIGINAL→ESSENTIAL→UNBIASED→INFORMATION  \n# Earthquake Hazards andEarthquake Risksin the Central US\n\nPhyllis J.Steckel,RGEarthquake Insight LLCWashington,Mo.In cooperation with the US Geological Survey  \nThe plan for today....  \n·‘Earthquakes 101'  \n·Regional Earthquakehistory  \n·Earthquakes &structures  \n·Putting it all together  \n·Questions &discussion  \n# Earthquake Vocabulary\n\n·Magnitude  \n·Intensity  \n·Depth  \n·Duration  \n·Aftershocks  \n·Faults (not 'fault lines')  \n·Location  \n·And more..  \n# Earthquake Magnitude\n\n·Amount of energyreleased  \n·Only one magnitudefor any oneearthquake  \nEarthquake Magnitude  \nM=1.0  \n·Logarithmic scale  \n·M2.0~30 times moreenergy releasedthan M1.0  \n·M3.0~1000 timesmore energyreleased than M1.0  \n# Earthquake Intensity\n\n● Measures energydelivered to any onesite  \n·Depends on location  \n·Many intensities forany one earthquake  \n70W  \n75°W  \n80'W  \n85'W  \n\n| INTENSITY   | I   | II-II   | IV   | V   | VI   | VII   | VII   | 1X   | X+   |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| SHAKING   | Not felt   | Weak   | Light   | Moderate   | Strong   | Very strong   | Severe   | Violent   | Extreme   |\n| DAMAGE   | none   | none   | none   | Very light   | Light   | Moderate   | Moderate/Heavy   | Heavy   | V.Heavy   |\n\nEarthquake Intensity  \n\n| Modified Mercalli Scale   |  | Richter  \u003Cbr>Magnitude  \u003Cbr>Scale   |\n| --- | --- | --- |\n| I   | Detected only by sensitive instruments   | 1.5  \u003Cbr>2  \u003Cbr>2.5  \u003Cbr>3  \u003Cbr>3.5  \u003Cbr>4  \u003Cbr>4.5  \u003Cbr>5  \u003Cbr>5.5-  \u003Cbr>6  \u003Cbr>6.5-  \u003Cbr>7  \u003Cbr>7.5-  \u003Cbr>8   |\n| I   | Felt by few persons at rest,especially  \u003Cbr>on upper floors;delicately suspended  \u003Cbr>objects may swing   |  |\n| II   | Felt noticeably indoors,but not always  \u003Cbr>recognized as earthquake;standing autos  \u003Cbr>rock slightly,vibration like passing truck   |  |\n| IV   | Felt indoors by many,outdoors by few,at  \u003Cbr>night some may awaken;dishes,windows,  \u003Cbr>doors disturbed;autos rock noticeably   |  |\n| V   | Felt by most people;some breakage  \u003Cbr>of dishes,windows,and plaster;  \u003Cbr>disturbance of tall objects   |  |\n| VI   | Felt by all,many frightened and run  \u003Cbr>outdoors;falling plaster and chimneys,  \u003Cbr>damage small   |  |\n| VII   | Everybody runs outdoors;damage to  \u003Cbr>buildings varies depending on quality of  \u003Cbr>construction;noticed by drivers of autos   |  |\n| VIII   | Panel walls thrown out of frames;fall of  \u003Cbr>walls,monuments,chimneys;sand and  \u003Cbr>mud ejected;drivers of autos disturbed   |  |\n| IX   | Buildings shifted off foundations,  \u003Cbr>cracked,thrown out of plumb;ground  \u003Cbr>cracked;underground pipes broken   |  |\n| X   | Most masonry and frame structures  \u003Cbr>destroyed;ground cracked,rails  \u003Cbr>bent,landslides   |  |\n| XI   | Few structures remain standing;bridges  \u003Cbr>destroyed,fissures in ground,pipes  \u003Cbr>broken,landslides,rails bent   |  |\n| XII   | Damage total;waves seen on ground  \u003Cbr>surface,lines of sight and level  \u003Cbr>distorted,objects thrown up in air   |  |\n\n·Subjective measurement  \n·Estimated from feltreports  \n·Depends on populationdistribution  \n·More is better  \n# Earthquake Depth\n\nRange from shallow todeep-surface to~450miles  \n·Shallow=more energyand intensity at thesurface  \n·Deep =less energy andintensity at the surface  \n# Earth's Crust\n\n·Thinner than anapple peel  \n·Floats on viscousmantle  \n·Pieces 'bump andgrind'along edges =plate tectonics  \n# Faults (Fault lines)\n\n·Norma  \n·Thrust  \n·Strike-slip","cbCaibzrYTIhtGoN","https://ap.wps.com/l/cbCaibzrYTIhtGoN","pdf",5521035,72,"English","# Earthquake Hazards and Earthquake Risks in the Central US\n## Earthquake Hazards and Earthquake Risks in the Central US\n## Earthquake Vocabulary\n## Earthquake Magnitude\n## Earthquake Intensity\n## Earthquake Depth\n## Earth's Crust\n## Faults (Fault lines)","[{\"question\":\"What is the difference between earthquake magnitude and earthquake intensity?\",\"answer\":\"Magnitude measures the amount of energy released and uses a logarithmic scale, with one magnitude per earthquake. Intensity measures the energy delivered to a specific site, so many intensity values can apply to the same earthquake.\"},{\"question\":\"Why does earthquake intensity vary by location?\",\"answer\":\"Intensity depends on location and population distribution. The same earthquake can produce different shaking and damage levels at different sites.\"},{\"question\":\"How does earthquake depth affect shaking and intensity at the surface?\",\"answer\":\"Shallow earthquakes produce more energy and intensity at the surface. Deeper earthquakes generally deliver less energy and intensity at the surface.\"}]","Earthquake Hazards and Earthquake Risks in the Central US | PDF",1790884805,181]