What is an earthquake epicenter and focus

what is an earthquake epicenter and focus

Focus & Epicenter of an earthquake

The focus of an earthquake is the point where the rocks start to fracture. It is the origin of the earthquake. The epicenter is the point on land directly above the focus. . Aug 04,  · The difference between the epicenter and the focus of an earthquake lies in the location of their origins. The focus is the exact point inside the crust of the earth where the quake begins, while the epicenter is the point on the earth's surface directly above the focus. At the focus, the rocks shift and the existing fault line in the earth ruptures, causing the earthquake.

The difference between the epicenter and the focus of an earthuake lies in the location of their origins. The focus is the exact point inside the crust of the earth where the quake begins, while the epicenter is the point on the earth's surface directly above the focus. At the focus, the rocks shift and the existing fault line in the earth ruptures, causing the earthquake. Seismic waves, in the form of either body waves or surface waves, travel outward in all directions, causing the shaking and rolling sensations felt above anx ground.

The focus can occur at convergent plate boundaries where two separate plates have a head-on collision, or it can be triggered by two plates sliding past one another, which occurs at transform boundaries. Since the epicenter is the closest point on the earth's surface to the focus below, the most xnd shaking and damage typically occurs at this point. The focus is often a shallow one near the surface of the epicenteer, which typically releases the most energy.

Deep-focus earthquakes are buried very deep inside the layers of the earth's crust. When the epicenter of a quake lies beneath an ocean, the disturbance sometimes triggers a dangerous what is a healthy bmi index which potentially inflicts extensive damage many miles away. More From Reference.

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Mar 12,  · • Focus is the actual point below the surface of the earth where an earthquake originates whereas epicenter is a point directly above it, and it lies on the surface of the earth. • It is the focus that is the origin of the earthquake and seismic waves travel in all direction like ripples in a pond when a stone is thrown inside. The epicenter is the point on the earth's surface vertically above the hypocenter (or focus), point in the crust where a seismic rupture begins. The focus (or hypocenter) is the actual location of the earthquake’s origin. Its Latitude, Longitude, and Depth. The epicenter is a projection of the focus to the nearest point on the surface of the earth. Thus, the data contains only Latitude and Longitude, but not depth.

Focus vs Epicenter. Focus and epicenter are words that are commonly heard in geology when earthquakes and their causes are being taught. With similarities in between, these two terms cause a lot of confusion for the students. These words are frequently used while reporting incidents of earthquakes in media. This article attempts to highlight the differences between focus and epicenter for the readers.

Focus is the point below the surface of the earth where an earthquake originates. This is the point where rocks first rupture or break when an earthquake takes place due to movement of bedrock and release of energy in a violent form. This point is also called hypocenter , and this is from where seismic waves travel to all other directions.

The waves are extremely forceful at the start but slowly die down. These waves can make earth vibrate like a tuning fork. As focus cannot be seen by people, the concept of epicenter was introduced to let people visualize the focus from where the earthquake originated. This epicenter is a point directly above the focus and is situated on the surface of the earth.

Thus for practical purposes, epicenter is taken to be the center or the origin of earthquake though the point below the surface of the earth remains the spot where it originated. Coming from Engineering cum Human Resource Development background, has over 10 years experience in content developmet and management.

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