A new study revisits the earthquake risk facing the Marmara region, 27 years after the devastating 1999 quake. The research focuses on a specific fault line near Istanbul, analyzing over 100 possible earthquake scenarios. Findings suggest this fault could play a significant role in a major future earthquake, potentially larger than previously estimated. Calculations indicate the rupture could spread across a wider geographical area than currently believed. The study aims to pinpoint the primary source of risk and model potential earthquake progression within the region. Authorities are closely monitoring the situation to prepare for potential disasters and mitigate risks to the population. The research highlights the ongoing and urgent need for seismic preparedness in the Marmara region.