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An area where no direct seismic waves from a particular earthquake can be detected?
Wiki User
∙ 11y ago
shadow zone
Wiki User
∙ 11y ago
Wiki User
∙ 11y agosound waves
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How many people were killed in the earthquake of Alaska in 1964?
The Anchorage Earthquake:The number of deaths from the earthquake and the tsunami that it created totalled at least 131 people including 16 as far away as Oregon and California. Death as a direct result of the Good Friday earthquake however was only nine with all other were blamed on the tsunami.
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How did the San Fransisco earthquake affect peoples lives in the region of Loma Prieta?
this earthquake in the Loma Prieta region made San Francisco have to start all over, the "impact" on the region isthe need 6 to 8 billion dollars worth of replacements22 structural fires formed over 24 hourspoor construction6.9 to 7.1 on the richter scaleruined peoples homes and work spotsif you can't work no money no rebuildingpeople can go homelessimportant stuff ruinedpeople scared for life, memories haunted62 killedthousands killedand last was in 1906 and 1989
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What is shadow zones?
An area on Earth's surface where no direct seismic waves from a particular earthquake can be detected.
Area where no direct seismic waves from a particular earthquake can be traced?
This, would be knows as the Shadow Zone.
Why do shadow zones exist?
P-waves refract as they travel through Earth so do not rach all other pars of the earth's surface. Also S-waves can't travel through liquids and so can't pass through the earth's outer core which also causes a shadow zone.
What is the direct measure of the distance from a seismic receiving station to the focus of a distant earthquake?
Intensity
What is the area where no seismic waves are detected called?
It is called the shadow zone, an area at an angle of between 104° and 140° from the axis of the epicenter, where the earth's liquid outer core has refracted the P-waves away from the direct line of travel.
What can a seismologist tell you about earthquakes?
Because seismic waves commonly propagate efficiently and interact with internal structure, they provide high-resolution noninvasive methods for studying Earth's interior. One of the earliest important discoveries (suggested by Richard Dixon Oldham in 1906 and definitively shown by Harold Jeffreys in 1926) was that the outer core of the Earth is liquid. Since S-waves do not pass through liquids, the liquid core causes a "shadow" on the side of the planet opposite of the earthquake where no direct S-waves are observed. In addition, P-waves travel much slower through the outer core than the mantle. Forecasting a probable timing, location, magnitude and other important features of a forthcoming seismic event is called earthquake prediction. Various attempts have been made by seismologists and others to create effective systems for precise earthquake predictions, including the VAN method. Most seismologists do not believe that a system to provide timely warnings for individual earthquakes has yet been developed, and many believe that such a system would be unlikely to give significant warning of impending seismic events. However, more general forecasts routinely predict seismic hazard. Such forecasts estimate the probability of an earthquake of a particular size affecting a particular location within a particular time-span, and they are routinely used in earthquake engineering.
What is the impact of an earthquake on the Earth's atmosphere?
Earthquakes do not have a direct impact on the atmosphere. An earthquake only damages the Earth and structures on the Earth.
Geologist use direct from what to learn about earths interior?
Geologists use evidence from seismic waves to learn about earth's interior. Geologists record the seismic waves and study how they travel through earth. By Brianna.
What geologists use direct evidence to learn about earths interior?
Geologists use evidence from seismic waves to learn about earth's interior. Geologists record the seismic waves and study how they travel through earth. By Brianna.
What method do they use to study the interior of Earth?
They use direct evidence from rock samples and indirect evidence from seismic waves.
What are two types of evidence geologists use to learn about Earths interior?
Rock samples and Indirect evidence from seismic waves Direct evidence from rocks samples and indirect samples from seismic waves my science teacher told me
What two types of evidence geologist use to learn about earths interior?
Rock samples and Indirect evidence from seismic waves Direct evidence from rocks samples and indirect samples from seismic waves my science teacher told me
