Hypocenter relocation using a fast grid search method and a 3-D seismic velocity model for the Sumatra region

Determination of earthquake hypocenter in Indonesia conducted by the Meteorological, Climatological, and Geophysical Agency (MCGA) has still used a 1-D seismic velocity model. In this research, we have applied a Fast Grid Search (FGM) method and a 3-D velocity model resulting from tomographic imagin...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Nugroho, Hendro, Widiyantoro, Sri, Nugraha, Andri Dian
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue 1
container_start_page
container_title
container_volume 1554
creator Nugroho, Hendro
Widiyantoro, Sri
Nugraha, Andri Dian
description Determination of earthquake hypocenter in Indonesia conducted by the Meteorological, Climatological, and Geophysical Agency (MCGA) has still used a 1-D seismic velocity model. In this research, we have applied a Fast Grid Search (FGM) method and a 3-D velocity model resulting from tomographic imaging to relocate earthquakes in the Sumatran region. The data were taken from the MCGA data catalog from 2009 to 2011 comprising of subduction zone and on land fault earthquakes with magnitude greater than 4 Mw. Our preliminary results show some significant changes in the depths of the relocated earthquakes which are in general deeper than the depths of hypocenters from the MCGA data catalog. The residual times resulting from the relocation process are smaller than those prior to the relocation. Encouraged by these results, we will continue to conduct hypocenter relocation for all events from the MCGA data catalog periodically in order to produce a new data catalog with good quality. We hope that the new data catalog will be useful for further studies.
doi_str_mv 10.1063/1.4820343
format Conference Proceeding
fullrecord <record><control><sourceid>osti</sourceid><recordid>TN_cdi_osti_scitechconnect_22218076</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>22218076</sourcerecordid><originalsourceid>FETCH-LOGICAL-c256t-972efb5bce8983e1efb4c374bd6b4dc7ba8470cf25affebe4e4a9d4b084379413</originalsourceid><addsrcrecordid>eNotjk1LxDAYhIMoWFcP_oMXPHfNV5v0KOvHCgseVPC2JOmbNtI20mSF_fdW9DAMMzAPQ8g1o2tGa3HL1lJzKqQ4IQWrKlaqmtWnpKC0kSWX4uOcXKT0SSlvlNIFGbfHr-hwyjjDjEN0Joc4wSGFqQMD3qQM3RxaSGhm18OIuY8tmGkRiPJ-6UMag4Pv33HIRxhjiwP4OEPuEV4Po8mzWdjdwr0kZ94MCa_-fUXeHx_eNtty9_L0vLnblY5XdS4bxdHbyjrUjRbIliCdUNK2tZWtU9ZoqajzvDLeo0WJ0jSttFRLoRrJxIrc_HFjymGfll_oehenCV3ec86ZpqoWPxvMWws</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>conference_proceeding</recordtype></control><display><type>conference_proceeding</type><title>Hypocenter relocation using a fast grid search method and a 3-D seismic velocity model for the Sumatra region</title><source>AIP Journals Complete</source><creator>Nugroho, Hendro ; Widiyantoro, Sri ; Nugraha, Andri Dian</creator><creatorcontrib>Nugroho, Hendro ; Widiyantoro, Sri ; Nugraha, Andri Dian</creatorcontrib><description>Determination of earthquake hypocenter in Indonesia conducted by the Meteorological, Climatological, and Geophysical Agency (MCGA) has still used a 1-D seismic velocity model. In this research, we have applied a Fast Grid Search (FGM) method and a 3-D velocity model resulting from tomographic imaging to relocate earthquakes in the Sumatran region. The data were taken from the MCGA data catalog from 2009 to 2011 comprising of subduction zone and on land fault earthquakes with magnitude greater than 4 Mw. Our preliminary results show some significant changes in the depths of the relocated earthquakes which are in general deeper than the depths of hypocenters from the MCGA data catalog. The residual times resulting from the relocation process are smaller than those prior to the relocation. Encouraged by these results, we will continue to conduct hypocenter relocation for all events from the MCGA data catalog periodically in order to produce a new data catalog with good quality. We hope that the new data catalog will be useful for further studies.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.4820343</identifier><language>eng</language><publisher>United States</publisher><subject>DEPTH ; EARTHQUAKES ; GEOSCIENCES ; HYPOCENTERS ; INDONESIA ; METEOROLOGY ; PERIODICITY ; SEISMOLOGY ; SUBDUCTION ZONES ; VELOCITY</subject><ispartof>AIP conference proceedings, 2013, Vol.1554 (1)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c256t-972efb5bce8983e1efb4c374bd6b4dc7ba8470cf25affebe4e4a9d4b084379413</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22218076$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Nugroho, Hendro</creatorcontrib><creatorcontrib>Widiyantoro, Sri</creatorcontrib><creatorcontrib>Nugraha, Andri Dian</creatorcontrib><title>Hypocenter relocation using a fast grid search method and a 3-D seismic velocity model for the Sumatra region</title><title>AIP conference proceedings</title><description>Determination of earthquake hypocenter in Indonesia conducted by the Meteorological, Climatological, and Geophysical Agency (MCGA) has still used a 1-D seismic velocity model. In this research, we have applied a Fast Grid Search (FGM) method and a 3-D velocity model resulting from tomographic imaging to relocate earthquakes in the Sumatran region. The data were taken from the MCGA data catalog from 2009 to 2011 comprising of subduction zone and on land fault earthquakes with magnitude greater than 4 Mw. Our preliminary results show some significant changes in the depths of the relocated earthquakes which are in general deeper than the depths of hypocenters from the MCGA data catalog. The residual times resulting from the relocation process are smaller than those prior to the relocation. Encouraged by these results, we will continue to conduct hypocenter relocation for all events from the MCGA data catalog periodically in order to produce a new data catalog with good quality. We hope that the new data catalog will be useful for further studies.</description><subject>DEPTH</subject><subject>EARTHQUAKES</subject><subject>GEOSCIENCES</subject><subject>HYPOCENTERS</subject><subject>INDONESIA</subject><subject>METEOROLOGY</subject><subject>PERIODICITY</subject><subject>SEISMOLOGY</subject><subject>SUBDUCTION ZONES</subject><subject>VELOCITY</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2013</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNotjk1LxDAYhIMoWFcP_oMXPHfNV5v0KOvHCgseVPC2JOmbNtI20mSF_fdW9DAMMzAPQ8g1o2tGa3HL1lJzKqQ4IQWrKlaqmtWnpKC0kSWX4uOcXKT0SSlvlNIFGbfHr-hwyjjDjEN0Joc4wSGFqQMD3qQM3RxaSGhm18OIuY8tmGkRiPJ-6UMag4Pv33HIRxhjiwP4OEPuEV4Po8mzWdjdwr0kZ94MCa_-fUXeHx_eNtty9_L0vLnblY5XdS4bxdHbyjrUjRbIliCdUNK2tZWtU9ZoqajzvDLeo0WJ0jSttFRLoRrJxIrc_HFjymGfll_oehenCV3ec86ZpqoWPxvMWws</recordid><startdate>20130909</startdate><enddate>20130909</enddate><creator>Nugroho, Hendro</creator><creator>Widiyantoro, Sri</creator><creator>Nugraha, Andri Dian</creator><scope>OTOTI</scope></search><sort><creationdate>20130909</creationdate><title>Hypocenter relocation using a fast grid search method and a 3-D seismic velocity model for the Sumatra region</title><author>Nugroho, Hendro ; Widiyantoro, Sri ; Nugraha, Andri Dian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c256t-972efb5bce8983e1efb4c374bd6b4dc7ba8470cf25affebe4e4a9d4b084379413</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2013</creationdate><topic>DEPTH</topic><topic>EARTHQUAKES</topic><topic>GEOSCIENCES</topic><topic>HYPOCENTERS</topic><topic>INDONESIA</topic><topic>METEOROLOGY</topic><topic>PERIODICITY</topic><topic>SEISMOLOGY</topic><topic>SUBDUCTION ZONES</topic><topic>VELOCITY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nugroho, Hendro</creatorcontrib><creatorcontrib>Widiyantoro, Sri</creatorcontrib><creatorcontrib>Nugraha, Andri Dian</creatorcontrib><collection>OSTI.GOV</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nugroho, Hendro</au><au>Widiyantoro, Sri</au><au>Nugraha, Andri Dian</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Hypocenter relocation using a fast grid search method and a 3-D seismic velocity model for the Sumatra region</atitle><btitle>AIP conference proceedings</btitle><date>2013-09-09</date><risdate>2013</risdate><volume>1554</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><abstract>Determination of earthquake hypocenter in Indonesia conducted by the Meteorological, Climatological, and Geophysical Agency (MCGA) has still used a 1-D seismic velocity model. In this research, we have applied a Fast Grid Search (FGM) method and a 3-D velocity model resulting from tomographic imaging to relocate earthquakes in the Sumatran region. The data were taken from the MCGA data catalog from 2009 to 2011 comprising of subduction zone and on land fault earthquakes with magnitude greater than 4 Mw. Our preliminary results show some significant changes in the depths of the relocated earthquakes which are in general deeper than the depths of hypocenters from the MCGA data catalog. The residual times resulting from the relocation process are smaller than those prior to the relocation. Encouraged by these results, we will continue to conduct hypocenter relocation for all events from the MCGA data catalog periodically in order to produce a new data catalog with good quality. We hope that the new data catalog will be useful for further studies.</abstract><cop>United States</cop><doi>10.1063/1.4820343</doi></addata></record>
fulltext fulltext
identifier ISSN: 0094-243X
ispartof AIP conference proceedings, 2013, Vol.1554 (1)
issn 0094-243X
1551-7616
language eng
recordid cdi_osti_scitechconnect_22218076
source AIP Journals Complete
subjects DEPTH
EARTHQUAKES
GEOSCIENCES
HYPOCENTERS
INDONESIA
METEOROLOGY
PERIODICITY
SEISMOLOGY
SUBDUCTION ZONES
VELOCITY
title Hypocenter relocation using a fast grid search method and a 3-D seismic velocity model for the Sumatra region
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T05%3A50%3A36IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-osti&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=proceeding&rft.atitle=Hypocenter%20relocation%20using%20a%20fast%20grid%20search%20method%20and%20a%203-D%20seismic%20velocity%20model%20for%20the%20Sumatra%20region&rft.btitle=AIP%20conference%20proceedings&rft.au=Nugroho,%20Hendro&rft.date=2013-09-09&rft.volume=1554&rft.issue=1&rft.issn=0094-243X&rft.eissn=1551-7616&rft_id=info:doi/10.1063/1.4820343&rft_dat=%3Costi%3E22218076%3C/osti%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true