?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Fepisodesplatform.eu%2Feprints%2F1502%2F&rft.title=Identification+of+Rock+Mass+Discontinuities+in+a+Cloud+of+Seismic+Event+Hypocenters&rft.creator=Kijko%2C+Andrzej&rft.subject=Method+and+procesing&rft.description=A+technique+to+interpret+a+cluster+of+seismic+events+in+terms+of+causative+structures+was+developed.+The+technique+consists+of+a+process+whereby+the+located+hypocenters+of+events+are+moved+within+their+confidence+ellipsoids%2C+by+means+of+a+statistical+procedure%2C+until+a+simplified+pattern+of+the+seismic+event+cluster+is+obtained.+This+simplified+pattern+might+then+be+interpreted+in+terms+of+a+fault%2C+a+system+of+faults+or+in+general%2C+as+a+rock+mass+discontinuity.+%0ADifferent+approaches+towards+hypocenter+confidence+ellipsoid+determination+was+investigated+to+determine+which+approach+is+most+accurate.+An+updated+approach+was+adopted+in+this+project+and+implemented+into+the+developed+software.+The+software+requires+as+input+the+data+of+the+locations+of+recorded+seismic+events%2C+as+well+as+the+location+errors+of+the+events.+These+location+errors+can+either+be+entered+manually+into+the+program+as+an+average+value+for+the+area+under+consideration%2C+or+calculated+automatically+and+presented+graphically+by+the+program+whenever+the+seismic+network+station+co-ordinates+are+provided+as+additional+input.+%0AThe+process+was+tested+and+is+demonstrated+in+this+report+for+three+synthetic+sets+of+data%3A+a+single+fault%2C+two+joined+faults+and+three+separate+faults.+The+tests+revealed+that+the+methodology+was+capable+of+enhancing+accurate+interpretations+of+possible+causative+geological+features.+These+accurate+interpretations+might+result+in+timely+warnings+about+hazardous+features%2C+thus+contributing+to+the+safety+of+the+mining+personnel.&rft.publisher=Safety+in+Mines+Research+Advisory+Committee&rft.date=1999-10&rft.type=Reports&rft.type=NonPeerReviewed&rft.identifier=++Kijko%2C+Andrzej++(1999)+Identification+of+Rock+Mass+Discontinuities+in+a+Cloud+of+Seismic+Event+Hypocenters.++Project+Report.+Safety+in+Mines+Research+Advisory+Committee.+++++