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Where do people first feel the ground shaking during an earthquake?
Wiki User
∙ 11y ago
The strongest shaking is towards the center of the actual earthquake which it is called the focus.
The epicenter of an earthquake is the point on the Earth's surface above the focus or hypocenter which is the point within the Earth where the rupture occurs.
As such the epicenter is the closest point to this and the seismic waves have had to travel through the smallest amount of material and so have undergone the least amount of attenuation (in this case attenuation is a reduction in amplitude of the seismic waves due to energy being by moving through the Earth).
However as with a lot of things in Earth Sciences there can be exceptions to this! This is because the amplitude of seismic waves is affected by the density (related to the level of compaction in the case of soils) of the material through which it is traveling). So a seismic wave traveling through a hard rock such as granite will have a much lower amplitude than one traveling through a softer, less dense, poorly compacted material such as a soil and so due to the higher amplitude there will be a higher level of perceived and measurable ground shaking, even an equal distances from the epicenter.
Wiki User
∙ 7y ago
Wiki User
∙ 11y agoPeople first feel the ground shaking at the epicenter of an earthquake.
Wiki User
∙ 13y agothe epicentre is where the earthquake is where it is felt the strongest
Wiki User
∙ 12y agoTHE FOCUS U STUPID!.............. wait i shouldn't be sayin tht cuz i was too lazy to actually look in my textbook :P but yea it is the focus :)
Wiki User
∙ 14y agoepicenter
Wiki User
∙ 14y agoP wave
Wiki User
∙ 12y agothe moon.
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Why we must turn off the electricity during an earthquake?
you should turn off all lights and/or electrical equipment or fire hazards such as lights ovens stove anything that is flammable turnoff or get away from it. Otherwise, it will create fire.
What are primary and secondary effects?
A primary affect is what happens during and throughout the day of the earthquake. Earthquake primary effects may include:landslidestrees collapsingbuildings collapsingpeople buried in rubbleschool children trapped under collapsed schoolsPoorly built buildings toppling overLimbless crying orphans impaled on twisted metal poles.and secondary affects are the consequences of the primary effects, or the things that happen later on from the earthquake. Some secondary effects may include:homelessnessneed of emergency housinghouseholds were inaccessible by road due to landslidesfood will be lostDisease spread, sourced from people drinking the dirty, contaminated waterCracks in the ground and walls.buildings split in two.Lots of rubble that takes years to move
Is this true or false for safety sake people who live in earthquake regions should build their homes on loose soils?
that purely depends on whether the earthquakes are strong or frequent, or how far away you are from the epicentre. But the best choice would be to build the house not on really loose soil because then it won't stand, it need to be able to support the weight. But if the soil is oose enough to let the house move against the shaking, then absolutely.
Why do people use ashtrays?
we dont want our ash to hit the ground!
What is surface runoff groundwater?
A runoff is precipitatoin soaks into the ground, precipitation can also run over the ground and flow into streams, rivers, lakes, and eventually the ocean.
What should be done during an earthquake?
If possible get out into the open where nothing can fall on you. If you are in a built up area shelter under something sturdy. The shaking of the ground is not likely to harm you it is falling objects that hurt people during an earthquake.
What is another threat to people during an earthquake besides ground shaking?
Buildings and bridges collapsing, fires as a result of collapse, loss of water and electricity from damage to utilities, etc.
Is it safer below or above the ground during an earthquake?
Above ground. If you are below ground then there is something above you and this may collapse on you. The safest place to be during an earthquake is on the ground out in the open where nothing can fall on you. Earthquakes do not kill many people directly, it is falling buildings that do that.
What kind of damage after caused by the servere shaking of an earthquake?
The violent shaking causes buildings to fall. It also causes causality loss of the people inside it.
What are earthquake hazards?
An example of an earthquake hazard is the violent shaking and buildings falling on people and the fumes from liquefaction being harmful to humans animals.
What will happen if people choose not to leave during an earthquake?
What happens is that people my die by getting crushed by falling buildings or the ground splitting apart.
Can an earthquake cause the world any damage?
An earthquake can definitely cause the world damage. In areas unprepared for earthquakes, it can cause massive damage to buildings and also kill people.
What were the primary effects of the christchurch earthquake?
building collapsed ,200 injuries,181 people were killed, ground shaking, building are weaken, water and sewage pipe were damaged ,city's buildings were damaged etc.
What are the effects of an earthquake on peoples lives?
It depends on how strong the earthquake is.Some earthquakes can't be felt.Some earthquake simply make the ground shake and could give people a fright.Some earthquake can damage buildings and even make them collapse. These people either get killed or need to look for new homes.some earthquakes can damage the whole city,countryOK what earthquakes can do to people is really hurt them how because an earthquake is caused when the earth's crust shifts and one part of the crust is on top so it causes a shaking for us that shaking moves that spot so if your in California and the earth is shaking then all of the people stuff moves and falls and many people die but remember the earth is huge so when it shakes that shake could travel millions of miles so people die and glass stuff falls on them so its not pretty but they have to take cover and that's the answer
Do people get hurt by an earthquake?
Yes, people can get hurt by an earthquake. The shaking of the ground can cause buildings and structures to collapse or suffer significant damage, leading to injuries or fatalities. Additionally, falling debris, landslides, and tsunamis triggered by earthquakes can also cause harm to people.
Why did people hear loud rumbling before the shaking began?
because when the plates under ground collide it starts to rumble and then echo
What killed more people the earthquake or the tsunami in japan?
The earthquake killed more people. It killed more people because the earth was shaking and buildings, TV sets, computers and other things might of gone on top of people and animals.
