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            <title xml:lang="en">New Bayesian formulation to integrate body-wave polarization in non-linearearthquake location</title>
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                <forename type="first">Emmanuel</forename>
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                  <title>European Geothermal Congress 2016</title>
                  <date type="start">2016</date>
                  <settlement>Strasbourg</settlement>
                  <country key="FR">France</country>
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                  <date type="datePub">2016</date>
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              <p>Earthquake location is most of the time computedusing arrival times of seismic waves observed onmonitoring networks. However, three-componentseismometers enable measurement of the seismicwave polarization which is also hypocentre dependent.Especially for local and sparse seismic networks, ascan be encountered in local reservoir applications suchas geothermal field monitoring, this information canbe used in addition to the travel-times to betterconstrain the hypocentre of local earthquakes.We propose a new Bayesian formulation for thelikelihood function of an earthquake hypocentreassociated with the P-wave polarization information.The formulation is consistent with directional statisticscontrarily to existing ones. The whole information ofthe P-wave covariance matrix is used. The non-linearity of the location problem is kept with thisapproach. Hence, the polarization information can betreated at the same level as the time information tobuild a joint probability density function of theearthquake location. Earthquake hypocentres aretherefore provided with a realistic uncertainty domain.</p>
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