Earthquake Source Characterization Using 3D Numerical Modeling
To understand the physics of earthquakes, it is important to know what happens during individual events. Dissembling the information about the source process from the recorded seismograms is a difficult and non-unique process, as there are severe trade-offs between many of the source parameters. In...
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California Institute of Technology
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ftdatacite:10.7907/m17s-7w40 2023-05-15T15:37:24+02:00 Earthquake Source Characterization Using 3D Numerical Modeling Hjörleifsdóttir, Vala 2007 PDF https://dx.doi.org/10.7907/m17s-7w40 https://resolver.caltech.edu/CaltechETD:etd-03212007-170259 en eng California Institute of Technology No commercial reproduction, distribution, display or performance rights in this work are provided. Kunlun Sumatra Geophysics FOS Earth and related environmental sciences Kokoxilli Bhuj Balleny Islands Thesis Text Dissertation thesis 2007 ftdatacite https://doi.org/10.7907/m17s-7w40 2021-11-05T12:55:41Z To understand the physics of earthquakes, it is important to know what happens during individual events. Dissembling the information about the source process from the recorded seismograms is a difficult and non-unique process, as there are severe trade-offs between many of the source parameters. In this thesis we attempt to add information from frequencies not used during the initial modeling of individual events to put more constraints on the source process, to learn about specific source parameters important to the physics of earthquakes. We model earthquakes using a spectral element method for wave-propagation that accurately accounts for the Earth's 3D elastic structure. We study the rupture speed of the 2001 Kunlun, China earthquake, the continuity of slip during the 1998 Balleny Islands event and the duration of slip during the 2004 Sumatra-Andaman, Indonesia earthquake. Finally, we explore the feasibility of using adjoint methods to learn about the earthquake source. Thesis Balleny Islands DataCite Metadata Store (German National Library of Science and Technology) Balleny Islands |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Kunlun Sumatra Geophysics FOS Earth and related environmental sciences Kokoxilli Bhuj Balleny Islands |
spellingShingle |
Kunlun Sumatra Geophysics FOS Earth and related environmental sciences Kokoxilli Bhuj Balleny Islands Hjörleifsdóttir, Vala Earthquake Source Characterization Using 3D Numerical Modeling |
topic_facet |
Kunlun Sumatra Geophysics FOS Earth and related environmental sciences Kokoxilli Bhuj Balleny Islands |
description |
To understand the physics of earthquakes, it is important to know what happens during individual events. Dissembling the information about the source process from the recorded seismograms is a difficult and non-unique process, as there are severe trade-offs between many of the source parameters. In this thesis we attempt to add information from frequencies not used during the initial modeling of individual events to put more constraints on the source process, to learn about specific source parameters important to the physics of earthquakes. We model earthquakes using a spectral element method for wave-propagation that accurately accounts for the Earth's 3D elastic structure. We study the rupture speed of the 2001 Kunlun, China earthquake, the continuity of slip during the 1998 Balleny Islands event and the duration of slip during the 2004 Sumatra-Andaman, Indonesia earthquake. Finally, we explore the feasibility of using adjoint methods to learn about the earthquake source. |
format |
Thesis |
author |
Hjörleifsdóttir, Vala |
author_facet |
Hjörleifsdóttir, Vala |
author_sort |
Hjörleifsdóttir, Vala |
title |
Earthquake Source Characterization Using 3D Numerical Modeling |
title_short |
Earthquake Source Characterization Using 3D Numerical Modeling |
title_full |
Earthquake Source Characterization Using 3D Numerical Modeling |
title_fullStr |
Earthquake Source Characterization Using 3D Numerical Modeling |
title_full_unstemmed |
Earthquake Source Characterization Using 3D Numerical Modeling |
title_sort |
earthquake source characterization using 3d numerical modeling |
publisher |
California Institute of Technology |
publishDate |
2007 |
url |
https://dx.doi.org/10.7907/m17s-7w40 https://resolver.caltech.edu/CaltechETD:etd-03212007-170259 |
geographic |
Balleny Islands |
geographic_facet |
Balleny Islands |
genre |
Balleny Islands |
genre_facet |
Balleny Islands |
op_rights |
No commercial reproduction, distribution, display or performance rights in this work are provided. |
op_doi |
https://doi.org/10.7907/m17s-7w40 |
_version_ |
1766367959058481152 |