tâm ngoài

Địa chấn có tâm ngoài nằm sâu dưới đáy biển.

Definition

1. Noun:
   • Epicenter: In geology and geography, "tâm ngoài" refers to the point on the Earth's surface directly above the focus (hypocenter) of an earthquake, where the seismic waves are typically felt most strongly.

Usage Examples

• Noun:
  • Tâm ngoài của trận động đất nằm gần thành phố. (The epicenter of the earthquake was located near the city.)
  • Các nhà địa chấn học đang xác định tâm ngoài. (Seismologists are determining the epicenter.)

Advanced Usage

• The term is primarily used in scientific, academic, and news reporting contexts related to seismology and earth sciences.

Variants and Related Words

• Tâm chấn / Chấn tiêu (n): Hypocenter or focus. The point the Earth where an earthquake rupture originates.
  • Tâm chấn nằm sâu 10 km dưới lòng đất. (The hypocenter is located 10 km deep underground.)

Synonyms

• Epicentre (British English spelling).

Notes on Usage

• "Tâm ngoài" is a technical term. In everyday conversation about earthquakes, people might simply refer to the "vùng tâm chấn" (seismic zone) or the location of the quake, but the precise scientific term for the surface point is "tâm ngoài".
• It is a compound noun formed from "tâm" (center, heart) and "ngoài" (outside, external), literally meaning "external center".