Tuncay Taymaz
Nadine G. Reitman
Alexandra Elise Hatem
Seda Yolsal-Cevikbilen
William D. Barnhart
Tahir Serkan Irmak
David J. Wald
Taylan Ocalan
William L. Yeck
Berkan Ozkan
Jessica Ann Thompson Jobe
David R. Shelly
Eric M. Thompson
Christopher DuRoss
Paul S. Earle
Richard W. Briggs
Harley M. Benz
Ceyhun Erman
Ali Hasan Dogan
Cemali Altuntas
Dara Elyse Goldberg
2023
<p><span>The 6 February 2023 </span><span class="inline-formula no-formula-id"><span id="MathJax-Element-1-Frame" class="MathJax" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math>"><span id="MathJax-Span-1" class="math"><span><span id="MathJax-Span-2" class="mrow"><span id="MathJax-Span-3" class="msub"><i><span id="MathJax-Span-4" class="mi">M</span></i><sub><span id="MathJax-Span-5" class="mi">w</span></sub></span></span></span></span></span></span><span> 7.8 Pazarcık and subsequent <span class="inline-formula no-formula-id"><span id="MathJax-Element-1-Frame" class="MathJax" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><msub xmlns=""><mi>M</mi><mi mathvariant="normal">w</mi></msub></math>"><span id="MathJax-Span-1" class="math"><span id="MathJax-Span-2" class="mrow"><span id="MathJax-Span-3" class="msub"><i><span id="MathJax-Span-4" class="mi">M</span></i><sub><span id="MathJax-Span-5" class="mi">w</span></sub></span></span></span></span></span> </span><span> 7.5 Elbistan earthquakes generated strong ground shaking that resulted in catastrophic human and economic loss across south‐central Türkiye and northwest Syria. The rapid characterization of the earthquakes, including their location, size, fault geometries, and slip kinematics, is critical to estimate the impact of significant seismic events. The U.S. Geological Survey National Earthquake Information Center (NEIC) provides real‐time monitoring of earthquakes globally, including rapid source characterization and impact estimates. Here, we describe the seismic characterization products generated and made available by the NEIC over the two weeks following the start of the earthquake sequence in southeast Türkiye, their evolution, and how they inform our understanding of regional seismotectonics and hazards. The kinematics of rupture for the two earthquakes was complex, involving multiple fault segments. Therefore, incorporating observations from rupture mapping was critical for characterizing these events. Dense local datasets facilitated robust source characterization and impact assessment once these observations were obtained and converted to NEIC product input formats. We discuss how we may improve the timeliness of NEIC products for rapid assessment of future seismic hazards, particularly in the case of complex ruptures.</span></p>
application/pdf
10.1785/0320230009
en
Seismological Society of America
Rapid characterization of the February 2023 Kahramanmaraş, Turkey, earthquake sequence
article