Rupture process of the 1999 Chi-Chi, Taiwan, Earthquake from the inversion of teleseismic data

Shiann Jong Lee, Kuo Fong Ma

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

We investigated 22 broadband teleseismic records of the 1999 Chi-Chi earthquake to determine its temporal and spatial slip distribution. The results show an anomalous large slip region centered about 40 to 50 km north of the hypocenter at a shallow depth. The largest amount of slip was about 6 - 10 m. The slip near the vicinity of the hypocenter had a relatively smaller amount of slip. The spatial slip distribution pattern coincides well with the observed strong-motion displacement and surface break. In the largest dislocation region, the slip was dominated by dip-slip. Some strike-slip component in the middle of the fault was found during the rupture. The Southern portion of the fault showed relatively constant rupture velocity with an average slip of about 1 m, whereas the northern portion of the fault showed significant variations in rupture velocity and produced a large amount of slip.

Original languageEnglish
Pages (from-to)591-608
Number of pages18
JournalTerrestrial, Atmospheric and Oceanic Sciences
Volume11
Issue number3
DOIs
StatePublished - Sep 2000

Keywords

  • Inversion
  • Rupture process
  • Teleseismic

Fingerprint

Dive into the research topics of 'Rupture process of the 1999 Chi-Chi, Taiwan, Earthquake from the inversion of teleseismic data'. Together they form a unique fingerprint.

Cite this