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62 results for “Fault Zone”
Dataset for Rate and Pressure Dependence of Dilatancy and Fault Strength in Partially-Drained Laboratory Fault Zones
<p>The datasets for Affinito et al., 2024 manuscript. Each experiment is was collected on a 24-bit recorder and 16 channels for hydromechanical data. The purpose of these experiments was to document the transition in fault drainage state as a fuction of shearing rate. Samples were prepared from cores collected at the US-DOE Utah FORGE well 16A.</p>
Hubbard Brook Experimental Forest Fault Zones: GIS Shapefile
This coverage was obtained in digital form from Chris Barton of the USGS. Bedrock geology in the Hubbard Brook Valley was mapped by C.C. Barton, R.H. Comerlo, and S.W. Bailey, August 1994 to August 1995. The Map is entitled "BEDROCK GEOLOGIC MAP OF HUBBARD BROOK EXPERIMENTAL FOREST AND MAPS OF FRACTURES AND GEOLOGY IN ROADCUTS ALONG INTERSTATE 93, GRAFTON COUNTY, NEW HAMPSHIRE" and was approved for publication on August 28, 1995. Data distributed as shapefile in Coordinate system EPSG:26919 - NAD83 / UTM zone 19N
Frictional properties of natural granite fault gouge under hydrothermal conditions: A case study of strike-slip fault from Anninghe Fault zone, southeastern Tibetan Plateau
<p>We performed friction experiments on natural granite gouge under hydrothermal conditions to investigate roles of the Anninghe Fault (ANHF) on seismogenesis in the continental crust. In this dataset, we report processed data after correction. Detailed information about the files in the zip-files is given in the explanatory file Lei-et-al-2023-Data-Description.pdf.</p>
Data of resulting velocity and anisotropic models, and Moho depth of the Tanlu fault zone
<div>Our dataset includes velocity model, anisotropic model, Moho depth data, core drawing codes, and color files.</div> <div> </div> <div>1. ani_vel_model.txt </div> <div>Data of our resulting velocity and anisotropic models.</div> <div> Format: longitude, latitude, vel_value (km/s), ani_value (km/s), azimuth_anisotropy (degree),</div> <div> </div> <div>2. moho.txt </div> <div>Data of our resulting Moho depth.</div> <div> Format: longitude, latitude, moho_depth (km)</div> <div> </div> <div>3. core_code_plot_picture.sh</div> <div>The core codes for plotting velocity model, anisotropy model, and Moho depth map.</div> <div> </div> <div>3. moho.cpt</div> <div>Color files required for plotting Moho depth.</div> <div> </div> <div>4. vel.cpt</div> <div> Color files required for plotting velocity model.</div>
Data for "Slow Rupture in a Fluid-rich Fault Zone Initiated the 2024 Mw 7.5 Noto Earthquake"
<p><strong>Files for our 3D deformation maps, Back-Projection results, static slip model, and kinematic slip model for the 2024 Mw 7.5 Noto earthquake.</strong></p>
Evolution of Nanocavities to Ductile Fractures in Crustal-Scale Faults at the Base of the Seismogenic Zone
<p>cpr files containing EBSD crystallographic data.</p>
Text-fig. 1. Ohře rift fault zone with location of our localities (adapted Rapprich et al. 2007). a – Vrbice, b – Nechranice, c – Bečov, d – Divoká rokle. in New Fossil Woods From The Paleogene Of Doupovské Hory And České Středohoří Mts. (Bohemian Massif, Czech Republic)
Text-fig. 1. Ohře rift fault zone with location of our localities (adapted Rapprich et al. 2007). a – Vrbice, b – Nechranice, c – Bečov, d – Divoká rokle.
Kinematic and Paleoseismic Investigation of an Upper-Plate Fault on Chirikof Island: A Potential Tsunami-Seismic Hazard Source within the Alaska Subduction Zone
Open the record for dataset details and reuse information.
Cascadia Subduction Zone Fault Heterogeneities from Newly Detected Small Earthquakes - Datasets
<p>Datasets associated with manuscript "Cascadia Subduction Zone Fault Heterogeneities from Newly Detected Small Earthquakes" by Morton et al. (2023), submitted to the <em>Journal of Geophysical Research: Solid Earth</em>. Three datasets are present in this upload:</p> <p><strong>ds01.xlsx</strong>: Catalog of 5,282 detected earthquakes along the Cascadia subduction margin, ordered by time. Events were located using Hypoinverse (Klein, 2002). Columns of the catalog are: Cascadia Initiative deployment year, Origin Time String (YYYYMMDDhhmmss), Origin Time (Year, Month, Day, Hour, Minute, Second), Latitude, Longitude, Event Depth (km), Duration Magnitude (Md), Number of P and S arrival picks with weights > 0.1, Maximum Azimuthal Gap (deg.), Distance to the Nearest Station (km), Travel Time Residual RMS (s), Horizontal Location Error (ERH; km), Vertical Location Error (ERZ; km), Focal Mechanism if applicable (Strike, Dip, Rake; deg.), Plate Designation (Slab, Interface, or Upper Plate), and Previous Existence in Regional Catalogs. Duration magnitudes that could not be constrained are listed as -9. Detected earthquakes that had previously been reported in other catalogs are listed as "Catalog" or "Stone" form the regional or Stone et al. (2018) catalogs, respectively; Those used as template events are marked as "T" or "ST", for those from regional catalogs or the Stone et al. (2018) catalog, respectively, in the last column.</p> <p><strong>ds02.xlsx</strong>: Table of earthquakes chosen as template events for subspace scanning from regional (NEIC, ANF, PNSN, CNDC) and Stone et al. (2018) catalogs. Columns of the template event table are: Catalog Source (T for regional, ST for Stone et al. 2018), Cascadia Initiative (CI) Deployment Year, Template Cluster ID, Date, Time (UTC), Catalog Location (Latitude, Longitude, Depth), Catalog Magnitude, and Whether the Template Event was Detected. Some of the templates were detected but were not included in the final catalog because the travel time residual RMS was greater than 1s and are noted in the table as "poorly located".</p> <p><strong>ds03.xlsx</strong>: Table of seismic stations used in subspace detection scanning, identified by the CI deployment year, Template Cluster ID, Station SEED, and Network Codes. Stations are listed with the corresponding high-pass (HP) or band-pass (BP) filter applied before scanning to maximize the signal-to-noise ratio.</p> <p>References</p> <p>Klein, F. W. (2002). <em>User’s Guide to HYPOINVERSE-2000, a Fortran Program to Solve for Earthquake Locations and Magnitudes</em> (Open File Report 02-171). U.S Geological Survey. https://doi.org/10.3133/ofr02171</p> <p>Stone, I., Vidale, J. E., Han, S., & Roland, E. (2018). Catalog of off-shore seismicity in Cascadia: Insights into the regional distribution of microseismicity and its relation to subduction processes. <em>Journal of Geophysical Research: Solid Earth, 123</em>, 1–12. https://doi.org/10.1002/2017JB014966</p>
Fault zone material files for dynamic rupture modeling of the 2019 Ridgecrest earthquakes
<p>This repository contains the material files used to add a low-velocity fault zone to a dynamic rupture model of the 2019 Ridgecrest sequence (Taufiqurrahman et al., 2023, Nature).</p>
Data for "Shear Strain Evolution Spanning the 2020 Mw6.8 Elazığ and 2023 Mw7.8/Mw7.6 Kahramanmaraş Earthquake Sequence along the East Anatolian Fault Zone" manuscript
<p>Data necessary to support the analysis presented in "Shear Strain Evolution Spanning the 2020 Mw6.8 Elazığ and 2023 Mw7.8/Mw7.6 Kahramanmaraş Earthquake Sequence along the East Anatolian Fault Zone" manuscript</p>
On the trail of fluids in the northernmost intracontinental earthquake swarm areas of the Leipzig-Regensburg fault zone, Germany
<p>rf.dat contains a migrated receiver functions profile (X, Z, Amplitude) between 50°N and 51.15°N.</p> <p>simul_vel.dat contains a 3D velocity model obtained with SIMULPS14 (Longitude, Latitude, Depth, Vp, Vs).</p> <p>velest_vel.dat contains a 1D velocity model obtained with VELEST (Vp or Vs, Depth, Weighting).</p>
Deep, shallow and surface fault-zone deformation during and after the 2021 Mw7.4 Maduo, Qinghai, earthquake illuminates fault structural immaturity
<p>These datasets include the postseismic InSAR time series on ascending and descending tracks and the relocated aftershocks (Wang et al., 2021) of the 2021 Maduo earthquake. The details can be found in our JGR paper.</p> <p>Reference</p> <p>Wang, W., Fang, L., Wu, J., Tu, H., Chen, L., Lai, G., & Zhang, L. (2021). Aftershock sequence relocation of the 2021 Ms7. 4 Maduo earthquake, Qinghai, China. Science China Earth Sciences, 64(8), 1371-1380.</p>
Pn velocity and anisotropic tomography models, and Moho depth of the Tanlu Fault Zone
<p>Our dataset includes Pn velocity and anisotropic tomography models, and Moho depth of the Tanlu Fault Zone.</p>
Arrival-time data automatically picked up by PickNet of Pn wave in Tanlu Fault Zone and surrounding areas
<p>This file is the arrival-time data automatically picked up by PickNet of Pn wave in Tanlu Fault Zone and surrounding areas. Only these Pn arrival times are used for tomographic inversion.</p> <p> </p>
Earthquake catalog at the Blanco Transform Fault Zone between 2012 and 2013
<p>The csv file provides an earthquake catalog derived from data of ocean-bottom seismometers operated between 2012 and 2013 at the Blanco Transform Fault Zone. The data file is in ASCII text format. The first row is a column header that describes the content of the catalog: Earthquake origin date, time, latitude, longitude, depth and local magnitude. Not all earthquakes have a local magnitude estimate due to data selection.</p>
Arrival-time data of the Longmenshan Fault Zone in East Tibet
<p>This file is the manually arrival-time data of the Longmenshan Fault Zone in East Tibet, including P, S and PmP arrival times.</p>
A Novel Hybrid Finite Element-Spectral Boundary Integral Scheme for Modeling Earthquake Cycles: Application to Rate and State Faults with Low-Velocity Zones
<p>We present a novel hybrid finite element (FE) - spectral boundary integral (SBI) scheme that enables efficient simulation of earthquake cycles. This combined FE-SBI approach captures the benefits of finite elements in modelling problems with nonlinearities, as well as the computational superiority of SBI. The domain truncation enabled by this scheme allows us to utilize high-resolution finite elements discretization to capture inhomogeneities or complexities that may exist in a narrow region surrounding the fault. Combined with an adaptive time stepping algorithm, this framework opens new opportunities for modeling earthquake cycles with high-resolution fault zone physics. In this initial study, we consider a two dimensional (2-D) anti-plane model with a vertical strike-slip fault governed by rate and state friction in the quasi-dynamic limit under the radiation damping approximation. The proposed approach is first verified using the benchmark problem BP-1 from the Southern California Earthquake Center (SCEC) sequence of earthquake and aseismic slip (SEAS) community verification effort. The computational framework is then utilized to model the earthquake sequence and aseismic slip of a fault embedded within a low-velocity fault zone (LVFZ) with different widths and compliance levels. Our results indicate that sufficiently compliant LVFZs contribute to the emergence of sub-surface events that fail to penetrate to the free surface and may experience earthquake clusters with nonuniform inter-seismic time. Furthermore, the LVFZ leads to slip rate amplification relative to the homogeneous elastic case. We discuss the implications of our results for understanding earthquake complexity as an interplay of fault friction and bulk heterogeneities. The complete work consists of all files listed below. </p>
Inconsistent Permeability Changes along a Fault Zone Caused by the Xingwen M5.7 Earthquake in SW China
<p>Data for manuscript " Inconsistent Permeability Changes along a Fault Zone Caused by the Xingwen <em>M</em>5.7 Earthquake in SW China "</p>
The complementary distribution of coseismic and slow-moving landslides along the Longmenshan fault zone
<p><a href="../api/records/13143195/draft/files/JZG.zip/content" target="_blank" rel="noopener noreferrer">JZG.zip</a>, The inventory of coseismic landlide for Jiuzhaigou earthquake. </p> <p><a href="../api/records/13143195/draft/files/Surface%20rupture.zip/content" target="_blank" rel="noopener noreferrer">Surface rupture.zip</a> The surface rupture of Wenchuan erthquake</p> <p><a href="../api/records/13143195/draft/files/detected%20slow-moving%20landslide_6660.txt/content" target="_blank" rel="noopener noreferrer">detected slow-moving landslide_6660.txt</a> The detected slow-moving landslide using Sentinel-1 images by deployed phase gradient stacking technique.</p> <p><a href="../api/records/13143195/draft/files/Snow_polygon.zip/content" target="_blank" rel="noopener noreferrer">Snow_polygon.zip</a> The snow-covered polygon in the study area</p> <p><a href="../api/records/13143195/draft/files/ROI-1_ALOS_phase%20gradient.zip/content" target="_blank" rel="noopener noreferrer">ROI-1_ALOS_phase gradient.zip</a> the stacked phase gradient files generated from ALOS-1 images and flagged slow-moving landslide manually for ROI-1</p> <p><a href="../api/records/13143195/draft/files/ROI-1_ALOS_phase%20gradient.zip/content" target="_blank" rel="noopener noreferrer">ROI-2_ALOS_phase gradient.zip</a> the stacked phase gradient files generated from ALOS-1 images and flagged slow-moving landslide manually for ROI-2</p> <p><a href="../api/records/13143195/draft/files/Lushan_ALOS_phase%20gradient.zip/content" target="_blank" rel="noopener noreferrer">Lushan_ALOS_phase gradient.zip</a> the stacked phase gradient files generated from ALOS-1 images and flagged slow-moving landslide manually in the focused region for affected area of Lushan earthquake.</p> <p><a href="../api/records/13143195/draft/files/rivers.zip/content" target="_blank" rel="noopener noreferrer">rivers.zip</a> the rivers in the study area</p> <p><a href="../api/records/13143195/draft/files/rough1.tif/content" target="_blank" rel="noopener noreferrer">rough1.tif</a> the terrain roughness for the study area</p> <p><a href="../api/records/13143195/draft/files/rough1.tif/content" target="_blank" rel="noopener noreferrer">slope1.tif</a> the terrain slope for the study area</p> <p><a href="../api/records/13143195/draft/files/A30m_5km_topo1.tif/content" target="_blank" rel="noopener noreferrer">A30m_5km_topo1.tif</a> the terrain relief for the study area</p> <p><a href="../api/records/13143195/draft/files/grd%20S1_DT62.zip/content" target="_blank" rel="noopener noreferrer">grd S1_DT62.zip</a> part of .grd files of stacked phase gradient for descending track 62 of Sentinel-1 images which covering the plotted regions in the supplementary material</p> <p><a href="../api/records/13143195/draft/files/grd%20S1_AT128.zip/content" target="_blank" rel="noopener noreferrer">grd S1_AT128.zip</a> part of .grd files of stacked phase gradient for ascending track 128 of Sentinel-1 images which covering the plotted regions in the supplementary material</p> <p><a href="../api/records/13143195/draft/files/grd%20S1_AT55.zip/content" target="_blank" rel="noopener noreferrer">grd S1_AT55.zip</a> part of .grd files of stacked phase gradient for ascending track 55 of Sentinel-1 images which covering the northeast section of surface rupture that generated in the 2008 wenchuan earthquake.</p> <p><a href="../api/records/13143195/draft/files/grd_Jiuzhaigou_before_after%20earthquake.zip/content" target="_blank" rel="noopener noreferrer">grd_Jiuzhaigou_before_after earthquake.zip</a> the .grd files of stacked phase gradient for ascending track 128 of Sentinel-1 images which covering the affected regions before and after Jiuzhaigou earthquake.</p> <p> </p> <p> </p> <p> </p>
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