epicenter

Thân thiện

The scientist marks the epicenter on a large map.

Definition

1. Noun:
   • The point on the Earth's surface directly above the focus (hypocenter) of an earthquake: This is the location where the seismic waves from an earthquake first reach the surface and is often where the shaking is most intense.

Usage

• The term "epicenter" is used primarily in seismology, the study of earthquakes.
• It is a specific, technical term for a geographical point related to seismic activity.
• In common usage, it can be used metaphorically to describe the central or focal point of any turbulent or significant activity.

Examples

• Literal (Seismological):
  • The earthquake's epicenter was located 10 kilometers north of the city.
  • Scientists quickly worked to determine the epicenter after the tremor.
• Metaphorical:
  • The city became the epicenter of political unrest.
  • The laboratory was the epicenter of innovation for the entire industry.

Advanced Usage

• "Epicentral" (Adjective): Relating to or situated at the epicenter.
  • The epicentral region suffered the most severe damage.
• Used in compound terms like "epicentral distance", which is the angular distance from the epicenter to a specific point.

Variants and Related Words

• Hypocenter (or Focus) (n): The point the Earth where an earthquake rupture originates. This is directly below the epicenter.
• Epicentre: The British English spelling of "epicenter."

Synonyms

• Center (n): The middle point (less specific, non-technical).
• Ground zero (n): The point on the earth's surface directly above or below an exploding nuclear weapon; often used metaphorically in a similar way to "epicenter."
• Hotspot (n): A place of significant activity or danger (metaphorical).

Idioms and Common Phrases

• While "epicenter" itself is not typically part of a fixed idiom, its metaphorical use is a common figurative phrase:
  • "The epicenter of [activity/change/controversy]": Describes being at the absolute center of a significant event or situation.

    • The small cafe was the epicenter of the neighborhood's social life.

Học thuật

Noun

1. the point on the Earth's surface directly above the focus of an earthquake

Từ đồng nghĩa

• epicentre