DOI: 10.5061/dryad.bzkh189hr
title: Data from: Continent-side uplifted mantle and geological imprints along a paleo rift in the western East Sea (Sea of Japan)

description: Recent public concern about potential seismic risk in the central Korean
 Peninsula has provoked preparedness for seismic hazard mitigation. We
 investigate the seismic velocity structures of the lithosphere in the
 central Korean Peninsula using ambient noise tomography and
 earthquake-based Eikonal tomography based on dense seismic networks. We
 determine Rayleigh-wave group velocities at periods of 1-15 s from ambient
 noise tomography and Rayleigh-wave phase velocities at periods of 20-80 s
 from earthquake-based Eikonal tomography. We determine a 3-D shear-wave
 velocity model in the lithosphere from the Rayleigh wave velocities. The
 model exhibits high lateral variations ranging from ∼-9 % to ∼8 %,
 depending on depth. The shear-wave velocities at shallow depths (≤ 2 km)
 are relatively high in mountain regions and low in coastal and basin
 regions. Strong velocity contrasts are observed around major earthquake
 hypocenters at depths of 3-20 km, which may be due to the presence of
 seismogenic faults. Shear-wave velocities at depths of ∼30-40 km are high
 along the east coast, suggesting uplifted mantle that is responsible for
 the opening of the East Sea (Sea of Japan). High velocity structures
 beneath Moho around the coast may suggest solidified underplated magma
 caused by the paleo rifting. The root of coast-parallel high-mountain
 range (Taebaek Mountain Range) is bounded by the uplifted mantle,
 presenting mountain range development in rift flank along paleo-rift axis.
 Low shear-wave velocities along the coast at depths ≥ 60 km may imply
 elevated temperature beneath the solidified underplated magma. The
 continent-side paleo rift affects the geological, thermal, and
 seismological properties around the continental margin at present.
description: This dataset is concerned with the paper "Continent-side uplifted
 mantle and geological imprints along a paleo rift in the western East Sea
 (Sea of Japan)" submitted to Journal of Geophysical Research: Solid
 Earth by Seongjun Park and Tae-Kyung Hong in 2024. The interstation
 ambient-noise crosscorreation functions, earthquake waveforms, and
 Rayleigh-wave and shear-wave velocity models analyzed in the article are
 provided. The dataset includes .dat and .mseed files. The .dat files are
 in ASCII format and can be opened with common text editors (e.g., vi,
 WordPad). The .mseed files are in miniSEED format and can be processed
 using seismic data processing tools such as mseed2sac and ObsPy. Please
 see the detailed information for the files below.
 \==================================================================== 1.
 station.dat This file includes information of seismic stations analyzed in
 this study. The file is given in the ASCII format with four columns:
 network, station, latitude (N, deg), and longitude (E, deg).
 \==================================================================== 2\.
 event.dat This file includes source information of global earthquakes
 analyzed in this study. The file is given in the ASCII format with seven
 columns: event ID, date (yyyy-mm-dd), time (HH:MM:SS), latitude (N, deg),
 longitude (E, deg), depth (km), and moment magnitude.
 \==================================================================== 3\.
 ccf.tar.bz2 This tar file includes the data files for interstation
 ambient-noise crosscorrelation functions analyzed in the study. The data
 files are named by following format: ccf.[network of first station].[first
 station]-[network of second station].[second station].dat All data files
 are given in the ASCII format with two columns: lag time (s) and
 normalized crosscorrelation coefficient.
 \==================================================================== 4\.
 event.waveform.tar.bz2 This tar file includes the data files for
 earthquake waveforms used for Eikonal tomography. All files are seperated
 by event directory that is named by ev_[event ID]. The waveforms are given
 in miniseed files that are named by [network].[station].mseed
 \==================================================================== 5\.
 fig8 This folder includes the data files to produce Figure 8 in the paper.
 All data files are given in the ASCII format. The data files are named by
 following format: fig8[subfigure label (a-f)].dat The data is given in
 three columns: latitude (N, deg), longitude (E, deg), and Rayleigh-wave
 group-velocity perturbation (dU, %).
 \==================================================================== 6\.
 fig9 This folder includes the data files to produce Figure 9 in the paper.
 All data files are given in the ASCII format. The data files are named by
 following format: fig9[subfigure label (a-c)].dat The data is given in
 three columns: latitude (N, deg), longitude (E, deg), and Rayleigh-wave
 phase-velocity perturbation (dc, %).
 \==================================================================== 7\.
 fig12 This folder includes the data files to produce Figure 12 in the
 paper. All data files are given in the ASCII format. The data files are
 named by following format: fig12[subfigure label (a-r)].dat The data is
 given in three columns: latitude (N, deg), longitude (E, deg), and
 shear-wave velocity perturbation (dVs, %).