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23 results for “seismic zones”
Seismic Azimuthal Anisotropy Model Beneath the Alaska Subduction Zone
<p>This dataset is supplementary to:</p> <p>Liu, C., Sheehan, A.F., Ritzwoller, M.H. (2024) (Under review).</p> <p>The uploaded file uses NetCDF4 format and contains isotropic Vsv and depth-dependent azimuthal anisotropy.</p> <p>File format:</p> <p><code>Longitude</code>, <code>Latitude</code>, <code>Depth</code>, <code>Para</code></p> <ul> <li> <p>Dimensions:</p> <ul> <li><code>Longitude</code>: -164.2° to -142.8° with 0.8° interval.</li> <li><code>Latitude</code>: 53.6° to 65.6° with 0.4° interval.</li> <li><code>Depth</code>: 10 to 200 with 5 km interval</li> </ul> </li> <li>Model parameters:<br> <ul> <li><code>vsv</code>: isotropic shear wave velocity (km/s)</li> <li><code>unc_vsv</code>: uncertainty for isotropic shear wave velocity </li> <li><code>fa</code>: depth-dependent fast azimuth (deg)</li> <li><code>unc_vsv</code>: uncertainty for depth-dependent fast azimuth</li> <li><code>amp</code>: depth-dependent anisotropy amplitude (%)</li> <li><code>unc_amp</code>: uncertainty for depth-dependent anisotropy amplitude</li> </ul> </li> </ul> <p> </p>
Waveforms and results of seismic attenuation in Sumatra subduction zone, Indonesia
<p>Datasets for the manuscript:</p> <p>Styawan, Y., Kuo, C.-H., Huang, B.-S., Wen, K.-L., Haridhi, H. A., Sianipar, D., Characteristics of seismic attenuation in Sumatra subduction zone, Indonesia (submitted)</p> <p>The attached files include:</p> <p>1) 0.2 Hz Highpass filtered waveforms for Z and T components.</p> <p>2) Results (α, event, station, t*, Q, corner frequency, Ω0, SNR, component (Z or T), category (forearc, mountain, or backarc), and Qp/Qs).</p> <p>3) Additional data (information on events and stations).</p> <p>4) site amplification factors (P and S of all stations in different α).</p>
Focal mechanism solutions and relocated earthquake catalog for the Charlevoix Seismic Zone (CSZ)
<p>The relocated catalog for the CSZ (Relocated_earthquakes_CSZ.dat) represent a combination of the catalogs from Yu et al. (2016, BSSA) and Onwuemeka et al. (2018, GRL). The focal mechanism solutions catalog (FMS_CSZ.txt) includes original data combined with the solutions from Mazzotti and Townend (2010, Lithosphere). </p>
Kinematic and Paleoseismic Investigation of an Upper-Plate Fault on Chirikof Island: A Potential Tsunami-Seismic Hazard Source within the Alaska Subduction Zone
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Seismic Model of the Seafloor Sediment and Shallow Oceanic Crust of the Alaska-Aleutian Subduction Zone at the Alaska Peninsula
<p>This dataset is supplementary to</p> <blockquote> <p>Zheng, Mengjie, Sheehan, Anne, Liu, Chuanming, Wu, Mengyu, & Ritzwoller, Michael. (2024). Characterizing Sub-Seafloor Seismic Structure of the Alaska Peninsula Along the Alaska-Aleutian Subduction Zone. <em>Journal of Geophysical Research: Solid Earth</em>, <em>129</em>(11), e2024JB029862. <a href="https://doi.org/10.1029/2024JB029862">https://doi.org/10.1029/2024JB029862</a></p> </blockquote> <p>This dataset contains files of sub-seafloor S-wave velocities and sediment properties.</p>
Supplemental datafiles for the manuscript "On the origin of seismic anisotropy in the shallow crust of the Northern Volcanic Zone, Iceland"
<p>Files to accompany the submission of the manuscript <strong>"On the origin of seismic anisotropy in the shallow crust of the Northern Volcanic Zone, Iceland" </strong>to the Journal of Geophysical Research: Solid Earth.<br> <br> <strong>File 1: </strong>conorbacon_ds01.inp - Input file for Coulomb</p> <p><strong>File 2: </strong>conorbacon_ds02.txt - Shear-wave splitting results file</p> <p> </p>
Seismic Anisotropy in the Lower Mantle Transition Zone Induced by Lattice Preferred Orientation of Akimotoite-Dataset
<p>The dataset includes the lattice preferred orientation data of akimotoite aggregates obtained through EBSD and transmitted two-dimensional (2D) X-ray diffraction method at BL04B1 of synchrotron facility of SPring-8, Hyogo, Japan. The employed conditions of 2D X-ray diffraction measurements are also available.</p>
Fiber-optic seismic sensing of vadose zone soil moisture dynamics data sets
<p>CC_daily.h5: Daily cross-correlation functions for common-offset DAS channels.</p> <p>RCC_dv_v_full.csv: Summary of all the measured dv/v from the ballistic surface waves in daily cross-correlation functions.</p>
Dataset for the manuscript "Potential Seismicity by Impoundment of the Baihetan Reservoir, Xiaojiang Fault Zone, Southwest China"
<p>Files corresponding to submitted manuscript "Potential Seismicity by Impoundment of the Baihetan Reservoir, Xiaojiang Fault Zone, Southwest China". Dataset used for the numerical calculation of Baihetan Reservoir. Model parameters, mesh file and the main simulation results are included. </p>
Stress conditions and seismic activity around the rupture zone of the 2016 Kumamoto earthquake in Kyushu, southwest Japan
<p>This archive includes the dataset for the Stress conditions and seismic activity around the rupture zone of the 2016 Kumamoto earthquake in Kyushu, southwest Japan. Most of the datasets are arranged from the JMAhypocenter data. Text and xlsx type files are included. Some "read me" files are also in folders.</p> <p> </p>
Machine-learning-based seismic detection and location around the Tanlu fault zone in eastern China
<p>REAL, HypoInverse, and HypoDD catalog around the Tanlu fault zone in eastern China.</p>
Original waveform of TanluArray portable seismic network in the Tanlu fault zone and surrounding areas
<p>The waveform in this folder was recorded by the National Institute of Natural Hazards (NINH) (cut by catalog from 2019 and 2021). Waveform data were intercepted from the 10s before and 10s after the theoretical arrival-time of Pn. It is only used for scientific research.</p>
Tidal triggering of seismic swarm associated with hydrothermal circulation at Blanco Ridge Transform Fault Zone in northeast Pacific
<p>Supplementary Information</p> <p>for</p> <p>Tidal triggering of seismic swarm associated with hydrothermal circulation at Blanco Ridge Transform Fault Zone in northeast Pacific</p>
Fine seismic imaging of the Lianhuashan fault zone, South China, and tectonic implications – Constrained by ambient noise adjoint tomography
<p>The Rayleigh wave group velocity dispersion and the cross-correlation functions used in the study "Fine seismic imaging of the Lianhuashan fault zone, South China, and tectonic implications – Constrained by ambient noise adjoint tomography".</p>
Supplementary Dataset for the Report "Imaging the Western Edge of the Aegean Shear Zone: The South Evia 2022-2023 Seismic Sequence"
<p>Supplementary Dataset for the Fast Report "<strong>Imaging the Western Edge of the Aegean Shear Zone: The South Evia 2022-2023 Seismic Sequence</strong>" by Christos P. Evangelidis and Ioannis Fountoulakis.</p> <p>The Fast Report can be found in <em><strong>Seismica Vol. 2 No. 1 (2023)</strong></em>.</p> <p><strong>DOI:</strong> <a href="https://doi.org/10.26443/seismica.v2i1.1032">https://doi.org/10.26443/seismica.v2i1.1032</a></p> <p><em><strong>Abstract:</strong></em></p> <p>This report presents the 2022-2023 South Evia island seismic sequence, in the western Aegean sea. An automated workflow, undergoing testing for efficient observatory monitoring in the wake of dense aftershock sequences, was employed to enhance the seismic catalog. It includes a deep-learning phase picker, absolute and relative hypocenter relocation, and moment tensor automatic calculations. The relocated catalog reveals a concentration of earthquake epicenters in a narrow NW-SE zone, with sinistral strike-slip fault movement. The findings of the study indicate the occurrence of an asymmetric rupture within conjugate fault structures in the western Aegean region. These fault structures, although not necessarily both active, play a significant role in marking the transition from dextral (SW-NE) to sinistral (NW-SE) strike-slip ruptures, connecting the Aegean shear zone with normal faulting in mainland Greece. The South Evia 2022-2023 seismic sequence has revealed the activation of this NW-SE strike-slip structure, contrary to previous assumptions of low seismicity in the region. The study highlights the importance of reassessing seismic hazard maps and considering the potential activation of similar zones further south in the future. It also emphasizes the need for the expansion and the densification of seismic networks within the Aegean.</p> <p><em><strong>Files:</strong></em></p> <p><strong>Relocated_Catalog.txt</strong>: Relocated earthquake catalog for the South Evia sequence. Included in the document are details concerning the origin time, the hypocentral positions, errors in determining the location, and the local magnitude of each earthquake.</p>
Imaging seismic and aseismic plate coupling with interferometric radar (InSAR) in the Hikurangi subduction zone
<p>Data associated with 'Imaging seismic and aseismic plate coupling with interferometric radar (InSAR) in the Hikurangi subduction zone published in GRL.</p>
Revealing Crustal Structure of the Western Philippine Sea Subduction Zone through Seismic, Gravity and Magnetic Joint Inversion Based on Minimum Support Cross-Gradient Coupling
<p>Data contains the synthetic model data and field data.<br> Final model contains the joint and single inverison result. <br> First volum of the data and model represents the location on the profile.</p> <p>Second volum of the model represents the depth of the model, which is all positive.</p> <p>Second volum of the data represent the value of the synthetic data.</p> <p>Rec_obs represents the reflection observed data,fir_tob represents the first arrival travel time observed data, the first and the second volum represents the source number and the receiver number. </p>
Thermal state, slab metamorphism and interface seismicity in the Cascadia subduction zone based on 3-D modeling
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Dataset in "Continent-continent Collision between the South and North China Plates Revealed by Seismic Refraction and Reflection at the Southern Segment of the Tanlu Fault Zone""
<p>This dataset contains:</p> <p> Field-data FWI Results<br> Deep Seismic Profiling Result<br> Post-stack Depth Migration<br> Source Signature<br> Misfit Reduction</p> <p>Descriptions:<br> 1. the unit of distance or depth is meter;<br> 2. the unit of time is ms;<br> 3. all the *.dat files are saved as plain text files;<br> 4. all the *.m files are the Matlab scripts for loading and plotting the data.</p>
Data set in EDI format for the manuscript titled "2D Broadband Magnetotelluric Study of the Axial Fault Region of the New Madrid Seismic Zone"
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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