Blurred vision, Dizziness, Floating spots or strings in vision and Lightheadedness. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms blurred vision, dizziness, floating spots or strings in vision and lightheadedness including Middle ear infection, Labyrinthitis, and Benign eye floaters.
Body waves. Body waves are of two types: compressional or primary (P) waves and shear or secondary (S) waves. P- and S- waves are called body waves because they can travel through the interior of a body such as the Earth's inner layers, from the focus of an earthquake to distant points on the surface. The Earthâs molten core can only be travelled through by compressional waves.
Surface Waves - Radiate from the epicenter and travel along the Earth's surface. Have up and down rolling motion, and side to side vibrational motion. During an earthquake, the Earth's surface 'rolls' like waves on the open ocean and moves from side to side. Body Waves - Radiate from the focus and travel throughout the earth's interior. There are two types of body waves: P-waves and S-waves. P-wave (primary wave) - A compressional wave that causes alternate compression-expansion of the rock. Move through both solids and liquids (Fig 8.8 A).