English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
 Local TagsRelease HistoryDetailsSummary
  Broadband Dynamic Rupture Modeling With Fractal Fault Roughness, Frictional Heterogeneity, Viscoelasticity and Topography: The 2016 Mw 6.2 Amatrice, Italy Earthquake

Taufiqurrahman, T., Gabriel, A., Ulrich, T., Valentová, L., Gallovič, F. (2022): Broadband Dynamic Rupture Modeling With Fractal Fault Roughness, Frictional Heterogeneity, Viscoelasticity and Topography: The 2016 Mw 6.2 Amatrice, Italy Earthquake. - Geophysical Research Letters, 49, 22, e2022GL098872.
https://doi.org/10.1029/2022GL098872

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025216 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025216_1
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Taufiqurrahman, T.1, 2, Author
Gabriel, A.‐A.1, 2, Author
Ulrich, T.1, 2, Author
Valentová, L.1, 2, Author
Gallovič, F.1, 2, Author
Affiliations:
1External Organizations, ou_persistent22              
2Geo-INQUIRE, External Organizations, ou_5025076              

Content

show
hide
Free keywords: -
 Abstract: Advances in physics-based earthquake simulations, utilizing high-performance computing, have been exploited to better understand the generation and characteristics of the high-frequency seismic wavefield. However, direct comparison to ground motion observations of a specific earthquake is challenging. We here propose a new approach to simulate data-fused broadband ground motion synthetics using 3D dynamic rupture modeling of the 2016 Mw 6.2 Amatrice, Italy earthquake. We augment a smooth, best-fitting model from Bayesian dynamic rupture source inversion of strong-motion data (<1 Hz) with fractal fault roughness, frictional heterogeneities, viscoelastic attenuation, and topography. The required consistency to match long periods allows us to quantify the role of small-scale dynamic source heterogeneities, such as the 3D roughness drag, from observational broadband seismic waveforms. We demonstrate that 3D data-constrained fully dynamic rupture synthetics show good agreement with various observed ground-motion metrics up to ∼5 Hz and are an important avenue toward non-ergodic, physics-based seismic hazard assessment.

Details

show
hide
Language(s): eng - English
 Dates: 2022-11-212022
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1029/2022GL098872
 Degree: -

Event

show

Legal Case

show

Project information

show hide
Project name : Geo-INQUIRE
Grant ID : 101058518
Funding program : Horizon Europe (HE)
Funding organization : European Commission (EC)

Source 1

show
hide
Title: Geophysical Research Letters
Source Genre: Journal, SCI, Scopus, ab 2023 oa
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 49 (22) Sequence Number: e2022GL098872 Start / End Page: - Identifier: ISSN: 1944-8007
ISSN: 0094-8276
CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals182