Figure 4. (a) Acceleration seismogram from station KHMN-5AF7, the KOERI strong motion station located in Kahramanmaras, along with velocity (first integral) and displacement (second integral) shows the rupture complexity of the Feb. 6, 2023 magnitude-7.8 event. The three distinct pulses are interpreted to indicate rupture on different fault segments. (b) Coseismic rupture on different fault segments associated with the mainshock is also derived from the modeling of the teleseismic body waves using the inversion method of Kikuchi et al. (1991). The negative distances in the lower panel are toward the northeast and the positive distances extend toward the southwest. The moment rate function on top of the panel and the slip model in the lower panel depicts rupture on three segments. Credit: Erdik, Tümsa, Pınar, Altunel, and Zülfikar