both. they can die down or gain speed depending on wind, location, and things like that.
focus
The point of initial rupture is called the focus. The point above the focus where the seismic waves first reach the surface is the epicenter. The focus is underground, and the epicenter is on the surface, basically. I hope this helped. :-) NOTE: the focus may also be referred to as the hypocenter. They're the same thing.
The point of origin of an Earthquake within the earth is known as the hypocentre. It can also be called the focus.Directly above this on the surface is the earthquake's epicenter.
the seismic waves work when the erosion happened in the middle of the ocean and then they burn so they explode!!
the focus is below the epicenter. the epicenter is where the focus is but on the surface. the focus is below the surface, it ranges in the depth. they show you the epicenter on the news, not the focus.
the point from which earthquake tremors is called seismic focus.
focus
focus
the point in the interior of earth from where earthquake is orginated .
The focus, or hypocenter.
It is the focus or hypocenter and is the point of initial breakage and movement along the fault.
To reinforce or weaken what has been instituted is unfortunately one's point of view, and the debate will be vast.
In geological terms, it is the point below the Earth's surface where seismic waves originate during an earthquake.
The point of initial rupture is called the focus. The point above the focus where the seismic waves first reach the surface is the epicenter. The focus is underground, and the epicenter is on the surface, basically. I hope this helped. :-) NOTE: the focus may also be referred to as the hypocenter. They're the same thing.
S waves shear rock back and forth as they travel through it.
The point of origin of an Earthquake within the earth is known as the hypocentre. It can also be called the focus.Directly above this on the surface is the earthquake's epicenter.
The focus and epicenter are terms used to describe the start and spread of a seismic event. Toss a pebble into a pond , the spot the pebble lands is the main energy focal point, the epicenter is the immediate surrounding area of the strongest waves, the waves become weaker as they leave this area.