Earthquakes MCHS

Front

What is the main location where almost all earthquakes occur?

Back

Along fault lines.

Front

What is the term for the point on the Earth's surface directly above where an earthquake starts?

Back

Epicenter.

Front

What are the first waves detected by seismographs during an earthquake?

Back

P waves.

Front

What is the significance of the epicenter in an earthquake?

Back

It is the spot on the ground surface directly above where the earthquake starts.

Front

What is a seismogram?

Back

A record produced by a seismograph that shows the intensity and duration of seismic waves.

Front

What does triangulation refer to in the context of earthquakes?

Back

A method used to determine the epicenter of an earthquake by analyzing data from multiple seismograph stations.

Front

What is the difference between P waves and S waves?

Back

P waves are primary waves that travel faster and can move through solids and liquids, while S waves are secondary waves that only move through solids.

Front

What is a fault line?

Back

A fracture in the Earth's crust where blocks of land have moved relative to each other.

Front

What is the Richter scale?

Back

A scale used to measure the magnitude of an earthquake based on the amplitude of seismic waves.

Front

What is the moment magnitude scale?

Back

A scale that measures the total energy released by an earthquake, providing a more accurate assessment than the Richter scale.