DOI: 10.17603/ds2-zfjz-8531
title: Shear Wave Velocity Measurements Along the East Anatolian and Narli Faults, in NSF RAPID: 2023 Türkiye Earthquake Sequence

description: This dataset contains the raw unprocessed active and passive surface wave and horizontal to vertical spectral ratio (HVSR) data collected in 23 sites located along the East Anatolian and Narli faults in Kahramanmaras and Hatay provinces, Türkiye. Surface wave and HVSR data were recorded at all the sites. In this project, each testing site folder contains the unprocessed surface wave data and the metadata file. The active surface wave data was recorded at each site using a linear array of 24, 4.5 Hz geophones with 2 m receiver spacing. Vertical geophones were used to record Rayleigh waves. A central array source was used solely for P-wave refraction, whereas multiple source offsets of 2, 5, 10, 20, and 30 m were used for both the multichannel analysis surface wave (MASW) data and P-wave. The passive microtremor array measurements (MAM) data were recorded using L-shaped arrays. The HVSR measurements utilized six three-component Trillium Compact, 20-second broadband seismometers. The L-array MAM measurements were carried out using 24, 4.5 Hz vertical geophones. An equal receiver spacing of 5 m was used. L-array dimensions ranged from 55 m x 60 m to 35 m x 80 m. The data was used to develop shear wave velocity profiles at each site. The details of the recorded data are provided in the metadata files for each site.
description: This project focuses on understanding how the near-surface geological conditions effect surface faulting from major earthquake events, using the 2023 Türkiye earthquake sequence as a unique opportunity to collect perishable data along active fault ruptures. This sequence generated widespread fault displacement and distributed deformation across the East Anatolian and Narli fault systems, providing a rare opportunity to collect perishable data that can advance understanding of how earthquake rupture interacts with soil and rock near the ground surface. The research focuses on earthquake hazards, specifically fault displacement and the deformation of the ground around active fault traces, which are critical considerations for the safety of infrastructure such as pipelines, highways, and lifeline systems.
The central problem addressed by this project is the lack of detailed field datasets that combine measurements of surface fault displacement with geophysical characterization of subsurface conditions. Existing fault-rupture case histories rarely include shear wave velocity profiles or other geophysical measurements that describe the stiffness and layering of the soil and rock materials that control how rupture propagates. By collecting seismic refraction, surface wave, and microtremor measurements across multiple rupture sites, this project fills a gap in available case histories and establishes a foundation for improving fault displacement hazard models.
The published datasets will benefit researchers, engineers, and practitioners who study earthquake ground deformation, infrastructure resilience, and lifeline design. The data can be reused to reproduce results, validate numerical simulations, calibrate fault-rupture models, support machine learning studies, or compare rupture behavior across global earthquakes. Because the dataset captures perishable information that would otherwise be lost, it will serve as a long-term resource for researchers in seismology, earthquake engineering, geophysics, and natural hazard modeling. Multiple datasets derived from field campaigns will be published, each documenting different aspects of near-surface conditions and rupture behavior.