The KahramanMaraş earthquake shows the possible sliding rate errors

Keramanamaria earthquakes. Credit: Nature Communications (2025). Doi: 10.1038/S41467-025-56466-W

The precise evaluation of the Earth's surface (such as small cracking and unsuccessful deformation) of two main earthquakes in 2023 can help scientists assess future earthquake risks and thus reduce risks to people and infrastructure. However, obtaining extensive extensive measurements in the earthquake areas is still difficult.

The earthquakes that were struck on February 6, 2023 were destroyed: it was 7.8 and 7.6 and occurred in a quick sequence near the border between Syria and Turkey. They have destroyed the large -scale infrastructure and led to tens of thousands of deaths across many provinces.

Using KahramanMaraş earthquakes as a case study, Kaust researchers have proven to damage the surface and flexible deformation away from the main breakdowns may extend more broadly than previously thought.

The search paper is published in the Nature Communications magazine.

Jihong Liu, post -doctoral fellow in Kaust's scales, says. In France. “Our results indicate that the width of the cortical damage area can reach five kilometers of the same mistake, instead of a few hundred meters as suggested previous case studies.”

Large earthquakes occur when two tecton paintings move suddenly together, instead of moving steadily in each other a few centimeters annually. This sudden slip, which is caused by the movement of meters within seconds, causes widespread damage. This damage is not only in the vicinity directly to the boundaries of the plate or the error, but also “OFD” (OFD) away from the main error. The OFD measurement precisely an important element in estimating the rift sliding rates and earthquake cycles, however it seems that most of the main status studies have been greatly reduced from Off.

The team used image data from the satellite satellites (SAR) to measure the ODD and 3D displacement from earthquakes. Use the pictures taken before and after the earthquakes.

“Radar moons have transformed the study of earthquake areas, allowing us to imagine and analyze large spaces deeply without the need for field notes,” says Liu.

LIU has developed the SM-VCE method, which is a technique of developed 3D surface displacement, which the team used to determine the 3D movement, Off and surface deformation across the seismology. They have shown that Off consumed up to 35 % of joint displacement, indicating that slipping rates in different parts of the world can reduce a third. They also found that the complex geometric rift sections have witnessed a higher level of simple straight rift sections.

“Our results have traces on the geological measurements of rift sliding rates.” This increases the risk of the estimated earthquake, with serious effects on the planned infrastructure, buildings and decisions. The fine Off should also be taken into account in computer models from earthquake areas. “

“We will conduct OFD measurements on other model earthquakes to continue verifying the validity and support of the results of this study,” Leo concludes.

More information: Jihong Liu et al, extensive damage to the kahramanaraş 2023 earthquake, nature communications (2025). Doi: 10.1038/S41467-025-56466-W

King Abdullah University of Science and Technology presented

Quotation: KahramanMaraş earthquake displays errors in the potential slide rate (2025, February 18) on February 18, 2025 from https://phys.org/news

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