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Why would the shadow zone of an earthquake in japan be different from the shadow zone of an earthquake in California?
depends on the focus and epicenter depends on the focus and epicenter
Which area of earth is unaffected by both p and s waves?
The shadow zone, located at a distance of 103 to 143 degrees from the earthquake epicenter, is the area on Earth's surface where both P and S waves are completely absorbed and do not arrive due to the core's properties.
What is the band around the earth were seismic waves are not detected?
The band around the Earth where seismic waves are not detected is called the "shadow zone." This region exists between 105 to 140 degrees from the epicenter of an earthquake and is caused by the refraction of seismic waves within the Earth's core. It is divided into two main parts, the P-wave shadow zone and the S-wave shadow zone.
What is the shadow zone caused by?
The shadow zone is caused by the refraction of seismic waves in Earth's core. P and S waves are refracted (bent) as they travel through different layers of the Earth, leading to a region where they are not detected by seismographs.
What is the wide belt in which no seismic waves are received?
The region is known as a seismic shadow zone, located between 104 and 143 degrees from the epicenter of an earthquake. This area exists due to the core's properties refracting seismic waves away from it, causing minimal wave detection.
What is the name of the zone where cyclones originate?
epicenter
The earthquaked epicenter was located two time zones east of Chicago What time was it in the time zone containing the epicenter when the earthquake began?
It was 3 hours ahead of Chicago time when the earthquake began in the time zone containing the epicenter.
What term is used to indicate the region where no earthquake waves reach Earth's surface?
Shadow zone is the term used to indicate the region where no earthquake waves reach Earth's surface. This area occurs beyond 105 degrees from the epicenter of an earthquake.
What is the band around the earth where seismic waves are not detected?
The band around the Earth where seismic waves are not detected is known as the seismic shadow zone. It exists between 105 and 140 degrees away from the earthquake epicenter. Seismic waves are not detected in this region due to the refraction and reflection of waves in the Earth's interior layers.
Is the shadow zone always in the same location on earth?
No, the shadow zone is not always in the same location on Earth. It varies depending on the position of the earthquake epicenter and the depth of the seismic waves generated. The shadow zone is formed due to the refraction of seismic waves as they pass through different layers of the Earth's interior, particularly the liquid outer core, creating areas where certain seismic waves cannot be detected. Consequently, its location changes with each seismic event.
How many stations must compare results to determine the epicenter?
At least three seismic stations are needed to compare results and determine the epicenter of an earthquake using the method of triangulation. By measuring the arrival times of seismic waves at different stations, scientists can pinpoint the epicenter where the waves intersect.
What is the p wave shadow zone?
The P-wave shadow zone is an area on the Earth's surface where seismic P-waves (primary waves) do not arrive after an earthquake. This phenomenon occurs because P-waves can travel through both solid and liquid, but they are refracted (bent) when they pass through the Earth's liquid outer core. As a result, there is a zone, roughly between 104° and 140° from the earthquake's epicenter, where no P-waves are detected, indicating the presence of the liquid outer core. This shadow zone provides crucial evidence for understanding the Earth's internal structure.
