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How many aftershocks did Christchurch have?
The Christchurch earthquake of 2011 had over 13,000 aftershocks.
Why did the earthquake in christchurch have so many aftershocks?
The reason that there have been so many aftershocks after the 2010 Christchurch earthquake is because bigger earthquakes have not only stronger aftershocks, but more of them. Aftershocks happen because when an earthquake occurs, the earth's plates hardly ever settle into a stable position straight away. So, the newly moved rock has to be settle.
Do small tremors occur after an earthquake?
An earthquake is caused by 'plates' in the ground shifting and moving. and after a major shift there might be a small aftershock witch is when the 'plates' in the ground move slightly as they are going back into place
What causes damage days or months after an earthquake?
Damage days or months after an earthquake can be caused by aftershocks, which are smaller tremors that follow the main earthquake. These aftershocks can weaken structures that were already damaged in the initial earthquake, causing them to collapse later on. Additionally, ongoing ground shaking and shifting of the ground can gradually lead to further structural instability over time.
Why is there aftershocks?
because since the earthquake shakes up the ground so much some extra waves come up which are called after shocks
Aftershocks are more deadly than a earthquake?
that's a question for me 2, lol. is it for homework im stuck on another one aswell question 7) often the first indication of an earthquake, u got that one? e-mail me with help! i have done questions 1,2,3,5,8,9,11,12,13,14,15 and that's it! its - zxzx@live.co.UK
How many people have so far been killed in the Illinois earthquake of February 10 2010?
No people were killed in the Illinois earthquake of Feb. 10, 2010. The 3.8 quake was not life threatening.
What were the causes of the Christchurch earthquake?
The September earthquake in Christchurch occurred as a result of movement between the Australian and Pacific Tectonic Plates. The movement of which affects the NZ Southern Alps. It is usual for these plates to move up to 4cms annually, however, the September quake was believed to have seen movement of up to 5meters. The earthquake that occurred on the 22nd February was one of the many aftershocks as a result of the September quake, however, the reason that the February earthquake was so much more violent and caused fatalities, was because of the aftershock was incredibly shallow and closer to the CBD than the original September quake.
What caused a second earthquake to hit Haiti on Jan 20 2010?
There would be a second earhquake after the first, it always do,just like the earthquake in the China in 2008. Actually, it is called an aftershock. If the aftershock was a higher valve then the first quake then the aftershock becomes the earthquake and the earthquake becomes the aftershock. Hope you get this. So to put it in perspective, the main hit is called an earthquake and any following disruptions are called aftershocks and not considered earthquakes. To answer the question: Geophysicists in the US have found that the "aftershocks" produced by earthquakes are triggered by the dynamic seismic waves from the main shock rather the changes in stress in nearby faults brought about by the rearrangement of the earths crust,as previously believed.
How can one earthquake cause another?
Earthquakes can pressure highly stressed fault lines and trigger subsequent seismic events. If correct, so-called stress triggering theory could help scientists pinpoint areas where earthquakes are imminent. The earthquakes immediately following one earthquake are called aftershocks. Tectonic plates are moving all the time. The aftershocks can occur because the initial earthquake may have moved things into another position. Then the plates will make additional small adjustments (the aftershocks) to release new pressures that the initial earthquake caused between tectonic plates when they moved. The fault line between the plates may become less stable and then later an entirely new earthquake may occur at the same or at a close by site. It is the instability of the tectonic plates left after one earthquake that can cause others.
How often does an earthquake happen in the same place two times?
They are quite common; they are called aftershocks. An earthquake redistributes the stress that creates the quake across the fault line, which then creates new points of stress, which result in additional earthquakes, which further redistribute the stress again, and so on and so forth until all the energy is spent.
How many aftershocks since the big earthquake?
There is for the most part one or more Earthquakes a day in NZ, however most of these are actually felt by anyone, mostly earthquakes here have to be over 3 in the Richter Scale to make much of a rating. For more info on NZ quakes have a look at www.geonet.co.nz
