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2013年岷县—漳县6.6级地震震前地磁异常分析.docx

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2013年岷县—漳县6.6级地震震前地磁异常分析 Title:AnalysisofPre-EarthquakeGeomagneticAnomaliesfortheMinxian-Zhangxian6.6MagnitudeEarthquakein2013 Abstract: TheMinxian-Zhangxianearthquakeof2013,withamagnitudeof6.6,hadasignificantimpactontheaffectedregion.Thisresearchpaperaimstoanalyzethepre-earthquakegeomagneticanomaliesleadinguptotheevent.Throughacomprehensivereviewofrelevantliterature,seismicdata,andobservationalstudies,thispaperdiscussesthepotentialrelationshipbetweenthepre-earthquakegeomagneticanomaliesandtheoccurrenceoftheearthquake.Thefindingsofthisanalysismaycontributetotheunderstandingofearthquakepredictionandprovideimportantinsightsforfutureseismichazardassessments. Introduction: Seismiceventsposesignificantsafetyrisksandchallengestoaffectedregions,astheyresultinlossoflife,destructionofinfrastructure,andeconomicsetbacks.Earthquakepredictionhasbeenanongoingchallengeasseismologistsstrivetodevelopreliablemethodstoforecastearthquakeoccurrences.Thisstudyfocusesontheanalysisofpre-earthquakegeomagneticanomaliesfortheMinxian-Zhangxian6.6magnitudeearthquakethatoccurredin2013.Understandingtherelationshipbetweengeomagneticanomaliesandseismiceventscandeepenourknowledgeofearthquakemechanismsandpotentiallyimprovepredictioncapabilities. Methods: Toconductthisstudy,severalmethodswereemployed.First,seismicdata,includingrecordsobtainedfromlocalandregionalseismicstations,werecollectedandanalyzed.Theprimaryfocuswasontheevent'sepicenterlocation,localgeologicalstructures,faultdistributions,andassociatedseismologicalcharacteristics.Additionally,historicalearthquakedataintheregionwereexaminedtoidentifyanypatternsortrends. Subsequently,geomagneticdataweregatheredandanalyzedfromvarioussources,includingmagneticobservatorieslocatedincloseproximitytotheearthquakelocation.Thesedatawereprocessedtoidentifyanypotentialanomaliesorvariationsinthegeomagneticfield.Toensureaccuracy,datafrommultiplesourcesandtimeperiodswerecross-referencedandcompared. ResultsandDiscussion: Theanalysisofseismicdatarevealedtheprimary