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(US), epicenter
the point on the earth's surface directly above the focus of an earthquake or underground nuclear explosion



(1) The projection of the hypocenter of an earthquake onto the earth’s surface (seeHYPOCENTER). The location of the epicenter is determined from recordings by seismic stations, and the epicentral region is determined by the degree of destruction on the surface. Epicenter maps showing the magnitudes of earthquakes are used in seismic zoning. (See alsoEARTHQUAKES.)

(2) The projection onto the earth’s surface of the center of an atmospheric (underwater or underground) nuclear explosion.


A point on the surface of the earth which is directly above the seismic focus of an earthquake and where the earthquake vibrations reach first.
The center of a circle that generates an epicycloid or hypocycloid.
References in periodicals archive ?
The Epicenter business model presents a means for direct marketers and branded manufacturers to establish a bricks and mortar retail presence," said Jim Hersh, COO/CFO of Petals Decorative Accents LLC, the premier direct provider of silk flowers and accessories.
Rockslides at a scenic mountainous area near the epicenter injured several people, the agency said.
The center said the epicenter of the quake was located in an area 62.
The epicenter of the quake, which occurred at 0858 GMT, was located 102 kilometers (63 miles) west of Craig, Alaska at a depth of nine kilometers (5.
Geological Survey confirmed the epicenter of the 7:12 p.
The epicenter was in the sea near Ozerny Cape, at a depth of 34 kilometers.
There are no reports of damage anywhere at this time; it just scared people a bit," Civil Defense chief Arturo Alvarado told RPC Radio, adding that the epicenter was "quite far from the coast.
The epicenter was 52 km to the east of Batken, 7 km to the east of Sovetskiy village, 125 km to the south-west of Osh city.
0, announced that leading Indian call center outsourcer, Epicenter Technologies, is improving their collections services utilizing the InstaCC cloud-based Hosted contact center offering from Tata Communications.
Head of Afghanistan's National Disaster Management Authority (ANDMA), Noor Badsha Kohistani, told Pajhwok Afghan News the epicenter was 140 kilometre northwest of Faizabad, provincial capital of northeastern Badakhshan.
ReachNXT enterprise port extender and EPICenter network management take the pain out of deployment and management with enterprise-class solutions
The concept, called the Epicenter Collection, has the potential to change how consumers shop the Web while breathing new life into traditional malls.