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Filters: Tags: finite fault (X) > partyWithName: U.S. Geological Survey (X)

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A Finite Fault is a modeled representation of the spatial extent, amplitude and duration of fault rupture (slip) of an earthquake, and is generated via the inversion of teleseismic body waveforms and long period surface waves. It may indicate that a location of major fault-slip and source of seismic energy has occurred at a significant distance from the earthquake epicenter, which is the location on the fault where the earthquake rupture nucleated. For many earthquakes, the preferred model represents the distribution of slip on one of the two alternative fault-planes that are implied by the earthquake moment-tensor. For some earthquakes, the seismographic data are fit equally well by models involving slip on either...
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The ANSS Comprehensive Catalog (ComCat) contains earthquake source parameters and other products produced by contributing seismic networks. Important digital catalogs of earthquake source parameters (e.g. Centennial Catalog, Global Centroid Moment Tensor Catalog) are loaded into ComCat. New and updated data are added to the catalog dynamically as sources publish or update products. Access to the ComCat is via the online search page, on which a user can select a wide variety of criteria to locate earthquake events of interest. Source Parameters: -amplitude - hypocenter - magnitude - phase data - finite fault - focal mechanism - moment tensor - tectonic summary - regional information Products: - Did You Feel It? -...
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This data release pertains to the December 20, 2021, Petrolia, California, United States earthquake sequence. Data are provided in the input formats required for the Wavelet and simulated Annealing SliP (WASP) finite-fault inversion code (https://github.com/slipinversion/WASP). This includes broadband seismic data, local strong-motion accelerometer data, and the static offsets from Global Navigation Satellite Systems (GNSS) used in the finite fault inversion. Figures describing the output are also included. (Child Item: GNSS Data and Finite Fault Modeling) Also included is a high-resolution earthquake catalog surrounding the region. The catalog was produced using cross-correlations and relative relocations. (Child...


    map background search result map search result map Supporting Data, Catalog, and Models for Characterizing 2021 Petrolia, CA, Earthquake Sequence Supporting Data, Catalog, and Models for Characterizing 2021 Petrolia, CA, Earthquake Sequence