";s:4:"text";s:4123:" The effect is similar to a sonic boom that bumps and rattles windows. You will find out more … In addition to the ground movements, other surface effects include changes in the flow of groundwater, landslides, and mudflows. As surface waves travel along the ground they cause the ground and anything resting upon it … Earthquake waves travel through the Earth over 800,000 times each year. Seismic Surface Waves ..... 14 2.1 Theory of elasticity in the seventeenth and eighteenth centuries ... waves, which are generated by earthquakes, artificial explosions and analogous sources, and pr~pagate along the Earth's surface, are referred to as seismic surface waves. A third type of wave formed by earthquake is the L-wave or long wave or surface wave. Surface wave is very destructive. Earthquakes are triggered when plate movement causes rocks to break apart. When an earthquake occurs, it releases waves of energy, which are known as Seismic waves. The layering of the rocks and the physical properties of surface soil also affect wave characteristics. Earthquakes waves. Surface waves move back and forth in a swaying motion in all directions. In an earthquake, body waves produce sharp jolts, while rolling motions of surface waves do most of the damage in an earthquake. There are two types of L waves: (i) Raileigh Waves (ii) Love Waves. Surface wave is very destructive. Some seconds later, the S waves arrive with their up-and-down and side-to-side motion, shaking the ground surface vertically and horizontally. Effects. Earthquake Waves. The effects from earthquakes include ground shaking, surface faulting, ground failure, and less commonly, tsunamis. These waves also move along the surface around the earth. There are two types of L waves: (i) Raileigh Waves (ii) Love Waves. These waves are complex, sinuous, undulatory waves that travel along the surface of the earth. Underwater earthquakes can cause giant waves called tsunamis. P waves propagate through the Earth with a speed of about 15,000 miles per hour and are the first waves to cause vibration of a building. Earthquakes occur because the surface of the Earth is in constant motion. This … An earthquake generates three kinds of waves: surface waves (L-waves), which are the slowest and weakest, shear (S) waves, which are transverse waves and carry most of the energy, and pressure (P) wav Earthquake - Earthquake - Properties of seismic waves: At all distances from the focus, mechanical properties of the rocks, such as incompressibility, rigidity, and density, play a role in the speed with which the waves travel and the shape and duration of the wave trains. It is like the ripples created in water if you throw a stone in it. Earthquakes. Surface waves are the slowest of all seismic waves, traveling at 2.5 km (1.5 miles) per second.