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  Supershear Rupture of the 1995 Mw 7.2 Multi‐Segment Nuweiba Earthquake in the Gulf of Aqaba

Li, B., Ulrich, T., Gabriel, A., Suhendi, C., Klinger, Y., Jónsson, S., Mai, P. M. (2025): Supershear Rupture of the 1995 Mw 7.2 Multi‐Segment Nuweiba Earthquake in the Gulf of Aqaba. - Geophysical Research Letters, 52, 22, e2025GL117448.
https://doi.org/10.1029/2025GL117448

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Item Permalink: https://gfzpublic.gfz.de/pubman/item/item_5037692 Version Permalink: https://gfzpublic.gfz.de/pubman/item/item_5037692_1
Genre: Journal Article

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 Creators:
Li, Bo1, 2, Author
Ulrich, Thomas1, 2, Author
Gabriel, Alice‐Agnes1, 2, Author
Suhendi, Cahli1, 2, Author
Klinger, Yann1, 2, Author
Jónsson, Sigurjón1, 2, Author
Mai, Paul Martin1, 2, Author
Affiliations:
1External Organizations, ou_persistent22              
2Geo-INQUIRE, External Organizations, ou_5025076              

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 Abstract: The Gulf of Aqaba (GoA) is the seismically most active region in the Red Sea, with a history of large earthquakes and posing a high seismic hazard to coastal communities. This study uses back-projection and dynamic rupture simulation to investigate the largest instrumentally recorded earthquake in the GoA, the 1995 7.2 Nuweiba earthquake, to understand stress loading, failure mechanisms, and cascading rupture potential on complex multi-segment fault systems. Our results reveal a multi-segment cascading rupture with supershear rupture on the optimally prestressed Aragonese Fault. Supershear rupture significantly amplified offshore ground shaking, elevating seismic hazard for the narrow gulf's coastal regions. This event partially ruptured the GoA fault system, increasing Coulomb stress on the unbroken southern Arnona Fault, which has been silent since 1588. This stress loading likely advanced a future rupture on this critical segment, requiring close monitoring and increased preparedness for a potential large earthquake in the region.

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Language(s): eng - English
 Dates: 2025-11-172025
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1029/2025GL117448
 Degree: -

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

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Title: Geophysical Research Letters
Source Genre: Journal, SCI, Scopus, ab 2023 oa
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Publ. Info: -
Pages: - Volume / Issue: 52 (22) Sequence Number: e2025GL117448 Start / End Page: - Identifier: ISSN: 1944-8007
ISSN: 0094-8276
Publisher: Wiley
Publisher: American Geophysical Union (AGU)
CoNE: https://gfzpublic.gfz.de/cone/journals/resource/journals182