Here are some rumbling facts!
What is an earthquake?
Earthquakes are the tumbling, shaking or sudden shock(s) of the earth’s surface, the Earth's natural means of releasing stress, and the shaking of the earth’s plates. The earth's surface is broken into seven large and many small moving plates. These plates, each about 50 miles (80.6 kilometers) thick, move an average of a few inches a year. Three types of moving are recognized at the boundaries between plates: convergent, divergent and transform-fault.
Where do earthquakes happen?
Earthquakes mostly happen in places with fault lines. Some examples
of fault lines in the U.S. are in Texas, California,
Can you predict an earthquake?
No. Although a great
deal is known about where earthquakes are likely to occur, there is
currently no reliable way to predict the days or months when an event
will occur in any specific location.
How long do earthquakes last?
Earthquakes actually only last a few seconds! but there are also things called aftershock, often lighter than the earthquake itself that cause things weakened by the earthquake ,like trees, to fall.
How can you measure earthquakes?
One way to measure
an earthquake is using a object called a Richter Scale. Earthquakes
below 2.0 usually can’t be felt. Earthquakes 4.0 and below can
be felt but don’t cause damage. Earthquakes that that are 5.0
and up can cause damage. Earthquakes that are 6.0 and up are considered
powerful. An earthquake that is 7.0 is considered a disastrous earthquake!!!
The biggest earthquake in the US since 1900 was in
is for a building of any kind. Choose a secure place in every room under
a strong table or desk or against an inside wall where nothing can fall
or hit you. Practice a drill called DROP, COVER, AND HOLD ON at least
twice a year if you are at a place where earthquakes tend to happen.
Drop under a strong desk or table, hold on to it and keep your eyes
safe by pressing your face hard against your arm. If there's no table
or desk nearby, sit on the floor against an interior wall away from
any windows, bookcases, or tall furniture that could fall on you. Teach
children this drill! No building is ever designed to be "earthquake
proof" in the sense that it will never be damaged in any earthquake.
that you know all this learn some more at
The Shaking or Rumbling in the Ground!