This AUTHOR_readme.txt file was generated on 20221210 by Surya Pachhai (Please update the file name to read AUTHOR_readmeYYYMMDD.txt) ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset Dataset for: Improved characterization of ultralow-velocity zones through advances in Bayesian inversion of ScP waveforms 2. Author Information Principal Investigator Contact Information Name: Michael S Thorne Institution: Department of Geology and Geophysics, University of Utah Address:115 S 1460 E, Salt Lake City, UT 84112 Email:michael.thorne@utah.edu Associate or Co-investigator Contact Information Name: Surya Pachhai Institution: Department of Geology and Geophysics, University of Utah Address:115 S 1460 E, Salt Lake City, UT 84112 Email:surya.pachhai@utah.edu Alternate Contact Information Name: Institution: Address: Email: 3. Date of data collection (single date, range, approximate date) Data included here were collected from approximately 20050101 to 20211230. This collection of data were originally downloaded from the IRIS DMC. 4. Geographic location of data collection (where was data collected?): Northern Territory, Australia 5. Information about funding sources that supported the collection of the data: This work was partially supported by NSF grants EAR 1723081 and 2139966. -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: Public Domain 2. Links to publications that cite or use the data: This collection of data was compiled for: Surya Pachhai, Michael S. Thorne, and Sebastian Rost (2022) Improved characterization of ultralow-velocity zones through advances in Bayesian inversion of ScP waveforms. TBD 3. Links to other publicly accessible locations of the data: NA 4. Links/relationships to ancillary data sets: NA 5. Was data derived from another source? If yes, list source(s): IRIS DMC 6. Recommended citation for the data: Pachhai S., Thorne, MS., and Rost S. (2022). Dataset for: Improved characterization of ultralow-velocity zones through advances in Bayesian inversion of ScP waveforms. The Hive: University of Utah Research Data Repository. https://doi.org/10.7278/S50d-a67s-y717 --------------------- DATA & FILE OVERVIEW --------------------- Seismic data are provided for 291 earthquakes in the file named "Pachhai_etal_2023_ScP_data.tar". There are 49 pdf files which contain observed ScP waveforms, AK135 prediction with attenuation (t*), and prediction for ULVZ structure with attenuation (t*). These files are labeled as "waveform_forbin_xx.pdf" where xx is the bin number. These can be downloaded individually or as one combined pdf, with the filename "waveform_forbin_1-49.pdf". Data for each earthquake are provided in their own directory. The naming convention for each event directory is: dd-mm-yyyy_hr:mm:ss i.e., the directory name is given in terms of event day, month, year, hour, and minute that the earthquake occurred. Within each directory the seismograms for that earthquake are stored in Seismic Analysis Code (SAC) format. Vertical component seismograms for P and ScP are given that are windowed in time around the P and ScP seismic arrival. The naming conventions of individual file are dd-mm-yyyy_hr:mm:ss.StationID.P.aligned.SAC for P waveforms dd-mm-yyyy_hr:mm:ss.StationID.ScP.aligned.SAC for ScP waveforms In total: 291 earthquakes data are provided. Additionally, there are 49 pdf files. 2. Relationship between files: The .tar file contains seismograms for all the station and events used in this study. Each pdf file is linked to the waveforms (both predicted and observed) from the geographical bins shown in Figures 8 and 13 of the main manuscript. 3. Additional related data collected that was not included in the current data package: N/A 4. Are there multiple versions of the dataset? yes/no no If yes, list versions: Name of file that was updated: i. Why was the file updated? ii. When was the file updated? Name of file that was updated: i. Why was the file updated? ii. When was the file updated? -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: All of the earthquakes occurred in the Tonga/Fiji trench and were recorded in Australia. The earthquakes were chosen such that the ScP arrivals are clean with high signal to noise ratio and P does not have complexity. All events between 2005 and 2021 were collected as a part of the following work: Data collection is described in this paper. Data collected for these earthquakes followed the same procedure. 2. Methods for processing the data: Data are initially processed as follows: (1) the mean and trend of the trace is removed, (2) downsampled to 0.05 sec, (3) filtered between 0.5 to 1.5 Hz, and (4) aligned all the waveforms using iterative adaptive approach (Rawlinson et al. 2004). 3. Instrument- or software-specific information needed to interpret the data: These data are written in seismic analysis code (SAC) format. 4. Standards and calibration information, if appropriate: NA 5. Environmental/experimental conditions: NA 6. Describe any quality-assurance procedures performed on the data: Quality assurance is described in detail in the manuscript. 7. People involved with sample collection, processing, analysis and/or submission: Surya Pachhai, Michael S. Thorne, and Sebastian Rost