focus
The epicenter
epicenter
The spot on the surface directly above where the earthquake occurs is called the epicenter. It is usually the point on the Earth's surface closest to where the seismic waves originate deep within the Earth.
The violent shaking and destruction associated with earthquakes are the result of rupture and slippage along fractures in Earth's crust called faults. Larger quakes result from the rupture of larger fault segments. The origin of an earthquake occurs at depths between 5 and 700 kilometers, at the focus(foci = a point). The point at the surface directly above the focus is called the epicenter.
'Magma' is melted rock occurring under the Earth's surface. When it comes up and flows out on the Earth's surface it is called 'lava'.
Focus
Focus
This is known as the focus or hypocentre of an earthquake.
The epicenter.
The epicenter.
The origin of an earthquake under the Earth's surface is typically the result of stress accumulation along geological faults, where tectonic plates interact. When the stress exceeds the strength of the rocks, it causes a sudden release of energy in the form of seismic waves, resulting in an earthquake. This process is often associated with tectonic activity, such as subduction, rifting, or transform boundaries. The point within the Earth where this rupture occurs is known as the focus or hypocenter of the earthquake.
the plates under the ground banging together
The plates under the Earth's surface collide together:)
The point beneath the earth's surface where an earthquake originates is called the hypocenter.
Epicenter
The focus of an earthquake is the location within the lithosphere where seismic energy is released when slippage first occurs along a fault line. The epicenter is the location on Earth's surface directly above the focus.
the epicenter (EP uh sen tur)