What is the meaning of aftershock?
What is the meaning of aftershock?
1 : an aftereffect of a distressing or traumatic event. 2 : a minor shock following the main shock of an earthquake.
What is an example of aftershock?
A rumbling a little while after an earthquake happens is an example of an aftershock. The loss of all of your money after putting it all into risky stocks in an example of an aftershock. An earthquake that follows in the same vicinity as another, usually larger, earthquake (the “mainshock”).
Is Aftershock one word or two?
noun. a small earthquake or tremor that follows a major earthquake. the effect, result, or repercussion of an event; aftermath; consequence: The aftershock of the bankruptcy was felt throughout the financial community.
How do you spell aftershock?
An aftershock is a small earthquake that echoes or follows a larger one. After an earthquake, people often wait nervously to see if there will be an aftershock. After the relief of surviving an earthquake, the tremors and shaking of aftershocks can be surprising and often dangerous.
What is the opposite of an aftershock?
From Simple English Wikipedia, the free encyclopedia. An aftershock is a smaller earthquake which comes after a large earthquake (called the main shock) in the same area. An aftershock is the opposite of a foreshock, which a small earthquake comes before the large earthquake.
What are two traits of aftershocks?
Aftershocks are earthquakes that follow the largest shock of an earthquake sequence. They are smaller than the mainshock and within 1-2 rupture lengths distance from the mainshock. Aftershocks can continue over a period of weeks, months, or years.
Which is more dangerous foreshock or aftershock?
Foreshocks are less likely to do damage than aftershocks because they’re smaller in magnitude. In fact, aftershocks may be so strong that they’re stronger than the main quake. When this happens the aftershock will be renamed as the main quake, and the main quake will be considered a foreshock.
Why are aftershocks so dangerous?
Aftershocks are dangerous because they are usually unpredictable, can be of a large magnitude, and can collapse buildings that are damaged from the main shock.
What is the difference between earthquakes and aftershocks?
The difference is in the intensity of the quake. The initial quake always has the greatest power, or magnitude, as defined by the Richter scale. Aftershocks are smaller quakes that then occur in the general area after the main quake.
Is it normal to have so many aftershocks?
The bigger the mainshock, the bigger the largest aftershock, on average, though there are many more small aftershocks than large ones. Also, just as smaller earthquakes can continue to occur a year or more after a mainshock, there is still a chance for a large aftershock long after an earthquake.
What’s a small earthquake called?
Foreshocks are smaller earthquakes occur in the same area as a larger earthquake that follows. Not all earthquakes have foreshocks or aftershocks. Sometimes a series of similar sized earthquakes, called an earthquake swarm, happens over months without being followed by a significantly larger earthquake.
How many earthquakes does Yellowstone have each year?
The Yellowstone region is one of the most seismically active areas in the United States. It experiences an average of around 1,500 to 2,500 located earthquakes per year!
Can an earthquake cause Yellowstone to erupt?
Earthquake shaking can also impact the eruption intervals of some geysers. These earthquakes, however, do not cause volcanic eruptions at Yellowstone. The last time magma reached the surface there was a lava flow about 70,000 years ago.
How many earthquakes happen at Yellowstone daily?
This gives an average daily number of earthquakes of 4.7, or one earthquake every ~5.1 hours (of course, about half of these events occur in swarms, so are not evenly distributed over time).
When was the last earthquake at Yellowstone?
On June 16, at 6:48 pm Mountain Daylight Time, the largest earthquake of 2017 occurred. The magnitude 4.36 quake was located about nine miles northnorthwest of West Yellowstone, Montana. The earthquake was reported felt in the towns of Gardiner and West Yellowstone, Montana.