QuakeSim is a

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

project for modeling

earthquake An earthquakealso called a quake, tremor, or tembloris the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak they ...

fault systems. It was started in 2001 with NASA funding as a follow-up to the General Earthquake Models (GEM) initiative. The multi-scale nature of earthquakes requires integrating data types and models to fully simulate and understand the earthquake process. QuakeSim is a computational framework for modeling and understanding earthquake and

tectonic Tectonics ( via Latin ) are the processes that result in the structure and properties of the Earth's crust and its evolution through time. The field of ''planetary tectonics'' extends the concept to other planets and moons. These processes ...

processes. QuakeSim focuses on modeling interseismic process though various boundary element, finite element, and analytical applications, which run on various platforms, including desktop and high-end computers. The QuakeTables database allows for modelers to access geological and geophysical data. A goal of QuakeSim is to develop significant improvements in earthquake forecast quality, thereby mitigating the danger from this natural hazard.

QuakeSim Portal

The QuakeSim Portal allows for users to access and ingest data into models and simulations. It provides the computational infrastructure for the entire project. QuakeSim users can create an account and interact with different data and software through the portal. The QuakeSim Portal consists of portlets that include: *Facilities for accessing real-time and archival GPS data *Time series analysis tools, including ST_Filter and RDAHMM *Mesh generation and viscoelastic finite element simulation tools (GeoFEST) * Okada-based elastic fault modeling methods (Disloc, which is a forward model, and Simplex for inverting geodetic data).

QuakeTables

QuakeTables is the database used to access information for QuakeSim. Information found in the QuakeTables includes: * Paleoseismic fault data *Global Positioning System (GPS) surface deformation data *Seismicity data *Processed Interferometric Synthetic Aperture Radar ( InSAR) Interferograms from existing satellites This information plays a big role in the process of forecasting and damage mitigation. The information allows for the creation of simulations and data mining. This then improves the prediction for potential earthquakes. This, along with attenuation modeling and site effects, leads to a better understanding of probable ground motion, allowing for the opportunity to improve structural response. NASA QuakeSim earthquake analysis

Developed Software

QuakeSim includes several applications. GeoFEST, PARK, and Virtual California are used to model different aspects of the earthquake cycle.

QuakeSim-related NASA missions

QuakeSim utilizes GPS data from

, the

National Science Foundation The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...

, and the US Geological Survey Southern California Integrated GPS Network (SCIGN). QuakeSim was also establishing the computational infrastructure for the planned NASA DESDynI (Deformation, Ecosystem Structure, and Dynamics of Ice) mission, which was cancelled in 2012.DESDynI mission
/ref> DESDynI (pronounced destiny) would fly InSAR and

LIDAR Lidar (, also LIDAR, an acronym of "light detection and ranging" or "laser imaging, detection, and ranging") is a method for determining ranging, ranges by targeting an object or a surface with a laser and measuring the time for the reflected li ...

instruments for studying hazards and global environmental change.

Affiliates

Jet Propulsion Laboratory The Jet Propulsion Laboratory (JPL) is a Federally funded research and development centers, federally funded research and development center (FFRDC) in La Cañada Flintridge, California, Crescenta Valley, United States. Founded in 1936 by Cali ...

(lead) *

Brown University Brown University is a Private university, private Ivy League research university in Providence, Rhode Island, United States. It is the List of colonial colleges, seventh-oldest institution of higher education in the US, founded in 1764 as the ' ...

Indiana University Indiana University (IU) is a state university system, system of Public university, public universities in the U.S. state of Indiana. The system has two core campuses, five regional campuses, and two regional centers under the administration o ...

* NASA Ames *

University of California, Davis The University of California, Davis (UC Davis, UCD, or Davis) is a Public university, public Land-grant university, land-grant research university in Davis, California, United States. It is the northernmost of the ten campuses of the University ...

University of California, Irvine The University of California, Irvine (UCI or UC Irvine) is a Public university, public Land-grant university, land-grant research university in Irvine, California, United States. One of the ten campuses of the University of California system, U ...

University of Southern California The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...

References

* * * {{cite journal , last=Donnellan , first=Andrea , author2=John Rundle , author3=Geoffrey Fox , author4=Dennis McLeod , author5=Lisa Grant , author6=Terry Tullis , author7=Marlon Pierce , author8=Jay Parker , author9=Greg Lyzenga , author10=Robert Granat , author11=Margaret Glasscoe , date=December 2006 , title=QuakeSim and the Solid Earth Research Virtual Observatory , journal=Pure and Applied Geophysics , volume=163 , issue=11–12 , pages=2263–2279 , doi=10.1007/s00024-006-0126-y, bibcode=2006PApGe.163.2263D * DESDynI: Deformation, Ecosystem Structure, and Dynamics of Ice Monitoring Hazards And Environmental Changes From Space. (2007). rochureJet Propulsion Laboratory: Author. * InSAR: Interferometric Synthetic Aperture Radar. (2006). rochureJet Propulsion Laboratory: Author.

External links

QuakeTablesQuakeSim PortalQuakeSim.orgdesdyni.org
*The QUAKESIM Fault Database for California

*Josh Chamot

Geotimes (American Geological Institute), October 2003, accessed August 16, 2007 *Siegel, H.; Li, P.
''MSLT, Multi Surface Light Table, a Tool for Viewing Faults Under Their Terrain''
American Geophysical Union, Fall Meeting 2003, abstract #S51B-06 *Kristen Cole

George Street Journal. July 11, 2003, accessed August 16, 2007 Seismology measurement