EARTH SCIENCE
EARTHQUAKES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
around the core
|
|
through the earth
|
|
on the surface
|
|
None of the above
|
Detailed explanation-1: -Surface waves travel more slowly through Earth material at the planet’s surface and are predominantly lower frequency than body waves. They are easily distinguished on a seismogram. Shallow earthquakes produce stronger surface waves; the strength of the surface waves are reduced in deeper earthquakes.
Detailed explanation-2: -Types of Seismic Waves The two main types of waves are body waves and surface waves. Body waves can travel through the Earth’s inner layers, but surface waves can only move along the surface of the planet like ripples on water.
Detailed explanation-3: -A surface wave is a wave that travels along the surface of a medium. Ocean waves are the best-known examples of surface waves. In a surface wave, particles of the medium move up and down as well as back and forth in an overall circular motion. The particles don’t actually move closer to shore as the waves pass through.
Detailed explanation-4: -Surface waves travel along the ground surface. In an earthquake, body waves are responsible for the sharp jolts. Surface waves are responsible for the rolling motions that do most of the damage in an earthquake.
Detailed explanation-5: -Answer and Explanation: Surface waves from earthquakes radiate from the locus of an earthquake. This is the point below the surface of the earth where rock slippage causes a massive release of energy.