Room: Exhibit Hall
Date: 5/2/2024
Session Time: 8:00 AM to 5:45 PM (local time)
Multiplet earthquakes (doublets, triplets, etc.) pose distinct challenges compared to standard mainshock-aftershock sequences, including recurring strong ground motions that can destroy already-damaged buildings and stretch emergency services. The overlapping seismic or surface deformation signals can also complicate the scientific interpretation and response. However, multiplet sequences also have great potential for illuminating earthquake processes such as stress triggering, fault interactions, and rupture nucleation, propagation, and arrest. Notable recent examples include the 6 February 2023 Kahramanmaras, Turkiye Mw 7.8 and 7.6 doublet, the October 2023 Herat, Afghanistan Mw 6.3 quadruplet, the 1 July 2022 Mw 6.0 Hormozgan, Iran doublet, the 14 November 2021 Mw 6.2 and 6.3 Fin, Iran doublet, the 2020 Mw 7.8 and 7.6 Shumagin, Alaska doublet, and the 2019 Minandao, Philippines Mw 6.4–6.8 quadruplet, which together offer a wealth of new data to explore. We solicit work on these and other multiplet sequences that involve seismic analyses, remote sensing, geodesy, field observations, numerical modelling, or combinations of these approaches. We solicit studies that address the progression of fault slip through time (the kinematics) and/or help explain this sequence of events (the dynamics). We also seek contributions that offer insights into why some fault systems may be more prone to multiplets than others, or perhaps even offer suggestions for how these sequences might be better incorporated into seismic hazard analyses. Through in-depth discussions, we aim to emphasize the significance of enhancing international collaboration, implementing monitoring technologies, and establishing disaster preparedness strategies to mitigate the impact of future seismic events.
Conveners:
Aybige Akinci, National Institute of Geophysics and Volcanology (aybige.akinci@ingv.it)
Pınar Büyükakpınar, GFZ Potsdam (pinar@gfz-potsdam.de)
Gareth Funning, University of California, Riverside (gareth@ucr.edu)
Alice-Agnes Gabriel, University of California, San Diego (algabriel@ucsd.edu)
Mohammadreza Jamalreyhani, SUSTech, China (jamalreyhani@sustech.edu.cn)
Edwin Nissen, University of Victoria (enissen@uvic.ca)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | Investigating the Türkiye-Syria and Afghanistan 2023 Seismic Sequences | View |
| Submission | High-Resolution Three-Month Aftershock Catalog using Nodal Stations of the 2023 Kahramanmaraş Earthquake Sequence in Southeastern Türkiye | View |
| Submission | Decoding the Rupture Kinematics of the 2023 Mw 7.8 and Mw 7.5 Kahramanmaraş Earthquake Doublet: Insights From Comprehensive Seismic and Geodetic Analysis | View |
| Submission | Measuring Afterslip From the February 2023 Mw 7.8 Pazarcık Earthquake Using Optical Images and Radar Data | View |
| Submission | Rupture History and and Elastic Interaction of the 2022 Multiple Earthquakes in the Zagros Mountains, Iran | View |
| Submission | Coulomb Stress Variation and Frictional Properties Control Postseismic Fault Slip and Late Aftershocks of the 2022 Zagros Earthquake Sequences: Deductions From Bayesian Inference and Insar Observations | View |
| Submission | Nodal Seismometer Array Recordings of Aftershocks of the 6 February 2023 Mw 7.8 and Mw 7.6 Kahramanmaraş, Turkiye Earthquake Sequence | View |
Illuminating Complex, Multiplet Earthquake Sequences at Kahramanmaras (Turkiye), Herat (Afghanistan), and Beyond [Poster Session]
Description