مرجعيات الطالب - كتاب علوم الأرض و الفضاء - الصف 12 - الفصل 1 - المملكة العربية السعودية

مرجعيات الطالب --- SECTION: خرائط مرجعية --- خرائط مرجعية --- SECTION: مواقع المراكز السطحية للزلازل في العالم --- مواقع المراكز السطحية للزلازل في العالم وزارة التعليم Ministry of Education 2025 - 1447 243 --- VISUAL CONTEXT --- **MAP**: مواقع المراكز السطحية للزلازل في العالم Description: A world map displaying the distribution of earthquake epicenters. Landmasses are shown with topographical shading (greens for low elevation, browns for higher elevation), and oceans are depicted with bathymetric shading (lighter blue for shallower waters, darker blue for deeper trenches). Numerous small red dots are scattered across the map, representing earthquake epicenters. These dots are predominantly concentrated along major tectonic plate boundaries, such as the Pacific Ring of Fire, the Mid-Atlantic Ridge, and the Alpine-Himalayan belt, clearly outlining the active seismic zones globally. Data: The map visually represents the global pattern of seismic activity. The density and location of the red dots indicate areas of high earthquake frequency, which are directly correlated with the boundaries where Earth's tectonic plates interact. Key areas of concentration include the circum-Pacific belt, the Mediterranean-Himalayan belt, and the oceanic ridge systems. Context: This map serves as a geographical reference to illustrate the concept of plate tectonics and the global distribution of earthquake activity. It visually reinforces the understanding that earthquakes are not randomly distributed but occur in specific zones corresponding to plate boundaries, which is fundamental to earth sciences.