Following an earthquake, identifying dangerous structural cracks is crucial for safety. Experts indicate hazardous cracks are characterized by specific features, including location in supporting columns. Dangerous cracks exhibit distinct shapes – either an "X" or a "U" formation – or run parallel to the floor. Any crack measuring half a centimeter or greater in width should also be considered potentially dangerous. These visual cues can help assess building stability post-earthquake. This information aims to assist individuals in recognizing potential structural weaknesses and prioritizing safety measures. The guidance was published by EL NACIONAL.