Definition

1. Noun:
   • Seism: A scientific term for an earthquake; a shaking or trembling of the earth's crust caused by the sudden release of energy in the Earth's lithosphere.
   • Seismic event: Any event that generates seismic waves, including natural earthquakes or artificially induced events like explosions.

Usage Examples

• Noun:
  • Các nhà khoa học đang nghiên cứu địa chấn. (Scientists are studying seism.)
  • Một địa chấn mạnh đã xảy ra ngoài khơi. (A strong seismic event occurred offshore.)
  • Trung tâm địa chấn nằm sâu 10 km. (The seismic center is 10 km deep.)

Advanced Usage

• "tâm địa chấn": The hypocenter or focus; the point within the Earth where an earthquake rupture originates.

  • Tâm địa chấn của trận động đất nằm gần đảo. (The earthquake's hypocenter was located near the island.)

• "cường độ địa chấn": Seismic intensity; a measure of the effects of an earthquake at a specific location.

  • Cường độ địa chấn được đo bằng thang Richter. (Seismic intensity is measured on the Richter scale.)

Variants and Related Words

• Địa chấn học (n): Seismology; the scientific study of earthquakes and the propagation of elastic waves through the Earth.

  • Ông ấy là một chuyên gia về địa chấn học. (He is an expert in seismology.)

• Địa chấn kế (n): Seismometer; an instrument that measures and records details of earthquakes.

  • Mạng lưới địa chấn kế ghi nhận hoạt động. (The seismometer network recorded the activity.)

Synonyms

• Earthquake: A sudden and violent shaking of the ground.
• Tremor: A slight earthquake.
• Seismic shock: A sudden disturbance caused by an earthquake.

Related Terms

• Sóng địa chấn (n): Seismic waves; waves of energy that travel through the Earth's layers as a result of an earthquake or explosion.

  • Sóng địa chấn cho biết cấu trúc lòng đất. (Seismic waves reveal the Earth's internal structure.)

• Bản đồ địa chấn (n): Seismic map; a map showing areas of seismic activity or risk.

  • Bản đồ địa chấn giúp dự báo nguy cơ. (A seismic map helps forecast risk.)

1. Seism