refraction
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.
When a seismic wave crosses a boundary between different materials, it will change direction through a process called refraction. Refraction occurs because seismic waves travel at different speeds in different materials, causing them to bend as they encounter new mediums with varying densities.
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.
The Mohorovičić discontinuity, also known as the Moho, marks the boundary between the Earth's crust and mantle. It is identified by a sudden increase in seismic wave velocities, indicating a change in rock density and composition at this boundary.
Reflection
Reflection
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
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
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.
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.
Reflection.
Reflection
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.
Destructive plate boundary.
refraction
refraction