Refraction
refraction
Seismic wave reflection and refraction are the two processes that can affect the path of seismic waves. Reflection occurs when seismic waves bounce off a boundary between different materials, while refraction occurs when seismic waves change direction as they pass from one material to another with different properties.
He noticed that seismic waves changed velocity at measurable depths. The boundary where seismic waves increased in speed is the boundary between the crust and the mantle, where seismic waves start to travel through more dense rock.
The 1755 Lisbon earthquake occurred at the boundary between the African Plate and the Eurasian Plate. This boundary is known as a convergent boundary, where the two plates are colliding, causing seismic activity.
crust and mantle, known as the Mohorovičić discontinuity or Moho. This boundary is where seismic waves change speed, indicating a transition between the Earth's outermost solid layer (crust) and the underlying denser layer (mantle).
refraction
Refraction
The bending of a seismic wave as it crosses a boundary is called refraction. This occurs due to the wave changing speed as it moves from one material to another with different properties, causing it to change direction.
refraction
When a seismic wave crosses a boundary between different materials, it may undergo reflection, refraction, or diffraction. Reflection occurs when the wave bounces off the boundary, while refraction causes the wave to change speed and bend as it enters a different material. Diffraction causes the wave to spread out as it encounters an obstacle or edge.
refraction
When a seismic wave bounces backward when it reaches a boundary, it is called reflection. This phenomenon occurs when the wave encounters a change in medium or boundary, causing it to change direction and return to its source. Reflection is a key process in seismic imaging and is used to map subsurface structures in geophysics.
When a seismic wave is reflected, it will bounce off a boundary between different materials and change direction. This can cause the wave to be redirected back towards its source or continue traveling in a different direction.
Destructive plate boundary.
It is called seismic wave reflection. When a seismic wave encounters a boundary between different materials with contrasting density or rigidity, some of the wave energy is reflected back towards the source.
Seismic waves change speed and direction when they encounter changes in the density and composition of rocks. The Mohorovicic Discontinuity marks the boundary between the Earth's crust and mantle, causing seismic waves to abruptly change behavior when passing through it. By analyzing the way seismic waves interact with this boundary, scientists can infer the presence and properties of the Mohorovicic Discontinuity.
Answer: When a seismic wave 'bounces backward' and reaches a boundary, it is called Reflection. Explanation: The seismic waves are the result of the landslides, earthquakes, volcanic eruptions, explosions by humans