https://m2.mtmt.hu/ hun 2026-09-22 23:58 BookChapter 3147359 APPROVED true 0 2017-03-02T14:21:34.000+0000 false 3147359 2021-04-29T20:06:06.249+0000 2017-03-02T14:21:34.000+0000 2016-12-02T13:26:14.000+0000 true 10004735 Bondár István /api/author/10004735 Author true 10004735 2020-06-13T08:17:45.205+0000 2020-06-13T08:17:45.205+0000 true false true 31 31 /api/publicationtype/31 PublicationType 4 true 31 BookChapter true 10000175 Abstract true 31 31 /api/publicationtype/31 PublicationType 4 true 31 BookChapter /api/subtype/10000175 Absztrakt / Kivonat SubType 453 true 10000175 true 1 /api/category/1 Category true 1 Aguiar, A C Numerical modeling of initial slip and poroelastic effects of the 2012 Costa Rica earthquake using GPS data poster poster 2016 Reducing the prediction error of seismic-phase travel times leads directly to improvement in earthquake location accuracy. One-dimensional (1D) velocity models are most commonly used to calculate seismic phase travel times because computer codes are readily available and the computations can be done on inexpensive hardware. Travel time predictions based on 1D models are accurate to within 1 to 2 seconds at teleseimic distance, but complex crust and upper mantle structure can triple prediction errors at regional distance. Increased travel time prediction error at regional distance is particularly prevalent in regions like Central America, where subduction tectonics results in large lateral variations in seismic velocity and crustal thickness. The Regional Seismic Travel Time (RSTT) method (Myers et al., 2010) was specifically developed to improve travel time prediction accuracy by accounting for 3D seismic velocity structure. The RSTT model is inherently global in extent, but the accuracy of travel time prediction is dependent on the accuracy of structure along each ray path. Many studies make use of the well-instrumented Nicoya Peninsula in Northern Costa Rica and the underlying seismogenic zone to image the structure of the region. In this study we update the RSTT 3D velocity model in northern and Central Costa Rica using published studies of velocity structure (DeShon et al., 2006 and Arroyo et al., 2009). Travel times for the updated model are compared to observed travel times for well-constrained earthquakes. We relocate the earthquakes using only regional data to measure the improvement in location that can be achieved with the updated model. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. 2016 true true false true true false NONE 2021-04-29 false true 10020110 Farkas Andrea /api/admin/10020110 Admin true 10020110 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 false false false false 2017-03-02T13:26:15.000+0000 2016-12-02T13:26:15.000+0000 Geodéziai és Geofizikai Intézet (CSFK) 1 6 1 3 0 true true 10002 English /api/language/10002 Angol Language true 2 false /api/publication/3185510 true true 32 32 /api/publicationtype/32 PublicationType 6 true 32 Book IASPEI Regional Assembly Latin American and Caribbean Seismological Commission Scientific Program 3185510 false 3185510 true true true true false Book 2016 true 1 /api/category/1 Category true 1 false Language 10002 /api/language/10002 Angol English true 2 true PersonAuthorship 8584805 /api/authorship/8584805 1 0.33333334 true false Aguiar A C true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false 25361940 true PersonAuthorship 8584806 /api/authorship/8584806 2 0.33333334 false false S C Myers true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false 25361939 true PersonAuthorship 8584807 /api/authorship/8584807 3 0.33333334 false true Author 10004735 /api/author/10004735 Bondár István true 10004735 true I Bondár true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false 25361938 true /api/publication/3147359 <div class="BookChapter Publication long-list"> <div class="authors"> <img title="Forrásközlemény" style="float: left" src="/frontend/resources/grid/publication-core-icon.png"> <div class="autype autype0"> <span class="author-name" >Aguiar A C </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" >S C Myers </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10004735"><a href="/gui2/?type=authors&mode=browse&sel=10004735" target="_blank">I Bondár (<span class="authorship-author-name">Bondár István</span> <span class="authorAux-mtmt"> Geofizika</span>) </a> </span> <span class="author-affil"><span title="MTA Csillagászati és Földtudományi Kutatóközpont">MTA CSFK</span>/Geodéziai és Geofizikai Intézet</span> </div> </div> <div class="title"><a href="/gui2/?mode=browse&params=publication;3147359" target="_blank">Numerical modeling of initial slip and poroelastic effects of the 2012 Costa Rica earthquake using GPS data</a></div> <div class="InBook"><div class="chapter-in">In:</div> <div class="authors"> </div> <div class="booktitle"><a href="/gui2/?mode=browse&params=publication;3185510" target="_blank">IASPEI Regional Assembly Latin American and Caribbean Seismological Commission Scientific Program </a></div> <div class="conference"> Konferencia helye, ideje: <span class="location">San Jose (CA), Amerikai Egyesült Államok <span class="conference-date">2016.06.20. - 2016.06.22.</span> </div> : <span class="page"> Paper poster. </span> <span class="year">(2016)</span> </div> <div class="pub-footer"> <span class="language" xmlns="http://www.w3.org/1999/html">Nyelv: Angol </span> <span class="identifiers"> </span> <div class="mtid"><span class="long-pub-mtid">Közlemény: 3147359</span> | <span class="status-data status-APPROVED"> Nyilvános </span> <span class="long-book-mtid">Befoglaló: 3185510</span> <span class="oldId">Régi azonosító: 3147359</span> | <span class="oldId">Befoglaló: 3185510</span> Forrás | <span class="type-subtype">Egyéb konferenciaközlemény ( Absztrakt / Kivonat ) </span> | Tudományos </span> | <span class="publication-sourceOfData">kézi felvitel</span> </div> <div class="lastModified">Utolsó módosítás: 2017.03.02. 15:21 Farkas Andrea (admin) </div> </div> </div>