How do I find the distance from the epicenter? Please show me step by step of how to find the distance from the epicenter. See attached picture.
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I drew a couple extra lines to show you in more detail.
Let's say for example our p-wave arrived at t=4min and our s wave arrived at t=6.5 min. The time difference is 2.5 min. So you can either plot 4 and 6.5 and draw a line straight across like I did (green line and dotted green) or find the spot where the distance between the two lines is t = 2.5 min. We see the epicentral distance for the green line is about 1800km.
Try the yellow line yourself. you should get t values of about 4.5 and 8.5 at an epicentral distance of 2600km.
Distance from an earthquake epicenter can be estimated by comparing the arrival times of P-waves and S-waves at a seismograph station, and using a travel-time graph. This only gives the radial distance, not the direction. Data from at least three stations is required for triangulation to identify the epicenter's exact location.
Explanation:The distance from an epicenter, such as that of an earthquake, can be determined by analyzing the seismic wave data recorded by seismograph stations. Specifically, the difference in arrival times between P-waves and S-waves is used.
Compare the arrival times of the P-wave and S-wave at a seismograph station. P-waves (Primary waves) are seismic waves that travel through the Earth's interior and are the first to be detected. S-waves (Secondary waves) follow the P-waves. The difference in their arrival times due to their differing speeds in geological mediums enables us to estimate the distance to the epicenter. Use the travel-time graph, where the horizontal axis represents the travel time difference between P and S waves, and the vertical axis represents the epicenter distance. This graph is usually given in textbooks or provided by teachers. Plot the determined P-S time difference on the graph and read the corresponding distance to the epicenter. It's crucial to remember that this method only provides the radial distance from the station to the epicenter. It doesn't provide the direction to the epicenter. For that, data from at least three seismograph stations is required for a process called triangulation.
In this case, the strength of the seismic wave does decrease as you move further from the epicenter, similar to the decrease in sound intensity as you move away from the sound source. Still, the process of determining actual distance involves comparing the arrival times of different types of seismic waves at a seismographic station.
Learn more about Seismic waves here:https://brainly.com/question/13056218
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Related Questions
Explain how are the boundaries established by European colonization a long-term cause of ethnic conflict in the region today.
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The boundaries set by the European colonial powers are causing a continuous ethnic conflict in the countries that were granted independence. This is due to the borders being set by the will of the European countries, and very often they include multiple ethnic groups that have a history of bad blood between them, and they are in the same territory, so there's very often use of violence.
This has led to multiple parts of multiple countries to be controlled by paramilitary units, where people from certain ethnicity are not allowed to go, and if they do, usually end up dead.
Why are there some areas of the country where solar power is not the best option?
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Solar power is not the best option in some countries because places like Rjukan (Norway) that do not recieve enough sunlight because of where they are located.
One environmental problem affecting the supply of freshwater is that groundwater is being pumped from
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One environmental problem affecting the supply of fresh water is that groundwater is being pumped from aquifers
Answer:
aquifers
Explanation:
Correct=Brainliest!
Which two types of air masses would likely form a subtropical jet stream?
Warm and cool air masses meeting near the North Pole
Cool and warm air masses meeting near the equator
Multiple warm air masses meeting near the equator
Two or more cool air masses meeting near the South Pole
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the correct answer would be Cool and Warm air masses meeting near the equator.
ANSWER:
'Warm and cool air masses meeting near the North Pole' would likely to form a 'subtropical jet stream'.
EXPLANATION:
Subtropical-jet stream is known as the space where there is a higher amount of force which is located at the upper level above the 'subtropical jet stream'. The exact location of the 'subtropical-jet stream' is located at the North phase of 30 Degrees and the reason behind this is due to the variation of air which lies on the region of mid-altitude and warmer equatorial air.Which does not usually trigger mass movements? vibration of the ground during an earthquake formation of oversteepened slopes growth of native vegetation on slopes saturation of surface materials with water
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The correct answer choice is answer C.) Growth of native vegetation on slopes. Plants generally help keep erosion and soil movements to a minimum, as their roots provide stability. Hope this helped!
Instead, native plants are adapted to local environmental conditions, they require far less water, saving time, money, and perhaps the most valuable natural resource, water. In addition to providing vital habitat for birds, many other species of wildlife benefits as well.
What are government leaders doing to preserve the farmlands of the netherlands
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They are keeping the randstad from expanding any further. I hope this helps! :D
The Answer is:
Keeping the Randstad from expanding
Match the scientific teams with their definitions ? (Please Help My ) ❤️
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1st one: Hypothesis
2nd one: Fact
3rd one: Theory
What are the positive effects on the Indus River valley
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Answer: the river provide most food and water so that the harappans could live was also a trading route hope this was helpful
Without jet contrails to block sunlight, air temperature across the United States would be lower.
True or false
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false since blocking sunlight would reduce the temperature and not raise it
Analyze the map below and answer the question that follows.
All of the following climate regions are located in South Asia, except __________.
A.
humid subtropical
B.
marine west coast
C.
tropical wet and dry
D.
semiarid
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Answer:
sorry for the first guy being useless its B guys :)
Explanation:
which of the following methods estimates geologic events by comparing the object to the layers of Earth they were discovered in
A. fossil dating
B. Geologic dating
C. Radioactive dating
D. Relative dating
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Answer:
The Correct Answer is D
Relative Dating
Explanation:
Which sphere extends from earth’s core to earth’s crust
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im not a genus plz stop!! :(
Use the map on page 21 of understanding geography to answer the following question.
Would a person go east or west of the Rocky Mountains if they wanted to climb several extremely high mountains?
West
East
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They would need to go West
Answer:
East
Explanation:
Took the test (k12)
Which of the Earth’s four spheres is made up of the gases that surround the Earth, and is located at number 1 on the image above? A. the biosphere B. the lithosphere C. the atmosphere D. the hydrosphere
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The answer is; C
The atmosphere is composed of air (mainly N2, O2, and C02). It is divided into different layers; troposphere, stratosphere, mesosphere, thermosphere, and ionosphere. The troposphere is the densest and where most air is located. The atmosphere is significant in geochemical cycles as it interacts with the other spheres of the earth.
Answer:
C
Explanation:
i got 100 on quiz
If you see orange colored smog with an unpleasant Oder you know that there is ______ pollution?
A SO2
B O3
CNO2
D H2O
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ANSWER:
If there is orange colored smog with an unpleasant smell, there is [tex]\bold{\mathrm{NO}_{2}}[/tex] pollution. Humans, as well as natural sources, contribute to the release of [tex]\mathrm{NO}_{2}[/tex] gases in the atmosphere.EXPLANATION:
Nitrogen Dioxide is a gas that is flammable and colorless in nature. It is a deep red and orange colored gas that can be very harmful to our health. It is toxic in nature and is very reactive with other gases and compounds. Nitrogen oxides can come from volcanoes, lightning strikes, decomposition, and man-made sources such as vehicle exhaust, industrial emissions.which scenario describes an effect of tornadoes on the environment
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Hopefully my answer will come useful, and please mark brainliest it satisfied!
Tornadoes uproot trees, causing environmental damage. and the correct statement is B) A path through a town with uprooted trees
b. A path through a town with uprooted trees
Tornadoes have a significant impact on the environment, and scenario b, which describes a path through a town with uprooted trees, is an effect of tornadoes. Here's an explanation of why this is the correct answer:
Tornadoes are violent windstorms characterized by a twisting, funnel-shaped cloud. The intense winds associated with tornadoes can have devastating effects on the environment, particularly in populated areas. When a tornado touches down, it can uproot trees, tear off branches, and create a path of destruction in its wake. This path often extends through towns and rural areas, leaving a trail of damaged or uprooted vegetation.
Here are some of the environmental effects of tornadoes:
1. Uprooted Trees: As mentioned in scenario b, tornadoes can uproot large trees, which not only damages the local ecosystem but can also pose a hazard to human structures and safety.
2. Habitat Disruption: Tornadoes disrupt natural habitats and ecosystems by altering the landscape and destroying vegetation. This disruption can affect wildlife populations and their habitats.
3. Soil Erosion: The powerful winds and heavy rainfall associated with tornadoes can lead to soil erosion, which can have long-term effects on the land's fertility and stability.
4. Debris and Litter: Tornadoes generate debris, including building materials, plastics, and other waste, which can be scattered across the environment, leading to litter and pollution.
While all the scenarios mentioned (a, b, c, and d) could result from natural disasters, scenario b specifically highlights the effect of tornadoes on the environment through the uprooting of trees and the creation of a path of destruction.
For such more questions on environmental damage.
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Question: Which scenario describes the effect of tornadoes on the environment?
a. A section of forest that has been burned
b. A path through a town with uprooted trees
c. A town near the coast with heavy flooding
d. A sandy beach that shows signs of erosion
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The Andes are the longest mountain range in the world.
What is the geometric mean of 5 and 4
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he first agricultural species was altered by genetic modification in _____. A. 1994 B. 1998 C. 2001 D. 2007
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The first agricultural species alteration was done in 1994
(context) the first ever agricultural species to be altered was a tomato
Which of the arrows on the climate map above is pointing to the sahel the semiarid region bordering the Sahara desert
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Since there's no map, I will explain where it is, so hopefully you can figure it out.
The Sahel is a semi arid region in Northern Africa. More specifically, it is located on the easternmost part of Northern Africa, bordering the vast Sahara desert on the west, and the Red Sea on the east.
This region is very interesting. It is mostly composed of eroded hills and plateaus, which over time got very interesting and attractive shapes, making the region look like it has been taken out of a movie.
There's very little activity in the Sahel, in general, as there's not a lot of people living in this area.
true or false. The medina is the old Arab section in the heart of many North African cities. Will chose brainliest
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1) True or false: Pollution does not move from one place to another
2) does wind remove pollutants from the air?
a. Yes
b. No
3) Minnesota’s average wind direction during the winter is from the northwest. During the summer, the wind more often blows from the southeast. What does this mean for pollutants?
a. There is no change in areas affected in summer vs. areas affected in winter
b. An area might have good air quality during one season and poor air quality during a different season.
Please help a girl out! Thank you.
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Answer:
1) true
2) No
3) b)
Explanation:
I HOPE THAT THIS ANSWER HELPS YOUThe earliest fossilized human remains have been found in
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your answer would be Asia
what are the five obligations/duties of a us citizen?
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Support and defend the Constitution.
Participate in the democratic process.
Serve on a jury when called upon.
Respect and obey federal, state, and local laws.
Pay income and other taxes honestly, and on time, to federal, state, and local authorities.
The five obligations and duties of a U.S. citizen are:
Always respect the opinions, beliefs, and rights of the fellow person.When called upon, serve in the jury during a legal process.Make sure to follow and obey local, federal, and state laws.Always pay your taxes on time fairly.Fight for the country and defend it if the need arises.EXPLANATION:The common thread that associates all Americans is citizenship. The United States is a country that is built by immigrants. By becoming a legit citizen of the U.S., there are certain obligations, responsibilities, or duties one has to know and follow. They should be able to exercise and respect these obligations and duties.which of the following is the best description of an orographic uplift
Answers
your best answer would have to be A
Answer:
An airflow confronting a mountain barrier, causing the air to rise - best describes the term orographic uplift.
Explanation:
The term orography in the discipline of physical geography literally means the branch that deals with the creation and features of a mountain. When the flow of air is confronted by a mountain, the air starts moving vertically upwards and rises along with the rising height of the mountain. This air usually collects moisture and forms clouds by the time it reaches the summit of the mountain resulting in orographic precipitation.the sepik river is found where?
Answers
I believe that Sepik river is located in new guinea
Hope this helps