The Earth's crust is made up of tectonic plates. These plates are constantly moving and when they rub against one another, it causes an earthquake. So the thing that is shaking is the Earth's crust.
"Seismic" refers to an earthquake, so seismic shaking is the shaking motion of the earth (and things on it) caused by an earthquake. There are different waves that emanate from the hypocenter, or point of origin.
There is an earthquake
The amount of shaking produced by an earthquake at a given location is called the intensity. It is measured on the Modified Mercalli Intensity (MMI) scale, which quantifies the level of shaking experienced by people and structures during an earthquake.
i depends where the earthquake is.
Yes, shaking is a primary characteristic of earthquakes
The most violent shaking during an earthquake typically occurs closest to the earthquake's epicenter, where the seismic waves are strongest. As you move further away from the epicenter, the shaking intensity decreases.
At the epicentre which, is the central point from which it originates.
You can feel the ground shaking, objects shaking or rattling, hear a rumbling noise, or see items swaying. These are common signs that an earthquake has started.
The shaking in an earthquake is measured using a seismometer. This device detects and records the vibrations produced by seismic waves during an earthquake. The magnitude of an earthquake is then determined based on the measurements recorded by seismometers.
shaking ground and cracking
Seismograph.
sudden shaking of the ground