English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

2007-11-27 00:28:36 · 7 answers · asked by Airelle L 1 in Science & Mathematics Earth Sciences & Geology

7 answers

EPICENTRE OF AN EARTHQUAKE is a point on the Earth’s surface located vertically above the place deep within the Earth where the earthquake originates.

2007-11-27 01:12:45 · answer #1 · answered by dixi 3 · 0 0

epicentre (ancient Greek: επίκεντρον) is the point on the Earth's surface that is directly above the hypocenter or focus, the point where an earthquake or other underground explosion originates.Seismic waves propagate spherically out from the hypocenter. After an earthquake has occurred, geologists can find out where the epicenter was located by triangulation of seismographic data from three or more different locations. Seismic shadowing occurs on the opposite side of the Earth from the earthquake epicenter because the liquid outer core absorbs the transverse or shear waves (S-waves), and refracts the longitudinal or compressional (P-waves).

The epicenter is usually the location of greatest damage. However, in some cases the epicenter is above the start of a much larger event. In these cases, damage may be spread across a larger area with the greatest damage possibly occurring some distance from the epicenter. For example, in the magnitude 7.9 2002 Denali Fault Earthquake in Alaska, the epicenter was at the western end of the rupture, but the greatest damage occurred about 330 km away at the eastern end of the rupture zone.
There is a special measurement & instruments to locate the epicenter, if u r interest to know more about it follow this link :
http://www.geo.mtu.edu/UPSeis/locating.html

2007-11-27 01:09:38 · answer #2 · answered by domitidus 2 · 1 0

The epicenter is the exact center of the effected area as seen at ground level. The quake can originate miles below the surface. The epicenter is directly above the point of origin.

2007-11-27 00:37:30 · answer #3 · answered by Anonymous · 1 0

The center point where it triggered first and then spread out like ripples on the face of a pond, for instance. Drop a pebble on a pond full of water: It would make ripples spreading outwards in circles. The epicenter is where your pebble felt and started the ripples. OK?

Best wishes!/

2007-11-27 00:40:53 · answer #4 · answered by Ebby 6 · 0 0

Usually the area where the tremors are most intense it is commonly the region where the tremors originated. I said usually because sometimes the point of origin can progress and create more intense tremors in a more remote area due to the density of the strata.

2007-11-27 00:52:28 · answer #5 · answered by Emissary 6 · 0 0

The epicentre is that point of the earth's surface which is vertically above the focal region of an earhquake from which the seismic waves originate.

2007-11-27 05:06:56 · answer #6 · answered by Arasan 7 · 0 0

Where it originated

2007-11-27 00:33:57 · answer #7 · answered by Dep. 4 · 0 0

fedest.com, questions and answers