Introduction

The database is constructed for understanding characteristics of ground motion with pulse-like velocity and providing time history as input motions for both shaking table test and numerical simulations of structural dynamics. This database consists of 198 three-component ground motion records with pulse-like velocities in Taiwan from 22 events, and 112 two- or three-component ground motion records in other regions from 32 events.

The records were processed using two different approaches, please refer to the technical reports of the database [1] for detail before you use it. Identification of velocity pulse is based on the approach proposed by Shahi and Baker [2] . This website shows metadata and time histories of accelerations, velocities, and displacements, and the spectral accelerations of pulse-like ground motion records in this database.

Data Format

The acceleration, velocity, displacement, and spectral acceleration data can be downloaded from the database for some events in ASCII format. Columns in each ASCII file represent time and ground motion in east-west, north-south and vertical directions sequentially. Accelerations in SAC format are also available for some events.

Website User Guidance

1. Rank parameters: double click column headers.
2. Show epicenter and stations: tick the reveal checkbox.
3. Check time histories and spectra: click station mark, and the the icon of rightward arrow.
4. Download data: click the icons of ASCII/SAC if available.

Data Source of Ground Motion in Taiwan

1. Metadata was obtained from. SSC and GMC databases of Taiwan SSHAC Level 3 Project
2. The raw time history data was obtained from Central Weather Bureau's Geophysical Database Management System.

Data Source of Ground Motion in Other Regions

1. Most records were obtained from PEER Ground Motion Database.
2. Records of Gorkha Nepal earthquake were obtained from CESMD.
3. Records of Kaikoura New Zealand earthquake were obtained from GeoNet.
4. Records of Kumamoto Japan earthquake were obtained from K-net and KiK-net

Reference

1. Kuo, C. H., Chao, S. H., Hsu, C. C., and Lu, X. M. (2019). Database of near-fault pulse-like time history, Technical Report NCREE-19-010, pp. 137.
2. Shahi, S. K. and Baker, J. W. (2014), An efficient algorithm to identify strong-velocity pulse in multicomponent ground motions, Bulletin of the Seismological Society of America, 104(5), 2456-2466.