Detecting & Mapping EQs (Lessons 3 & 4) Practice

Front

What is the epicenter of an earthquake?

Back

The point on the Earth's surface directly above where an earthquake originates.

Front

What is the Circum-Pacific Belt also known as?

Back

The Ring of Fire.

Front

What is the reference line for latitude?

Back

The Equator.

Front

In which year did the Alaska Earthquake occur?

Back

1964.

Front

How can you determine which location is farther from the epicenter?

Back

By measuring the distance from the epicenter to each location on a map.

Front

What is the purpose of mapping earthquakes?

Back

To understand patterns, predict future earthquakes, and assess risk.

Front

What are tectonic plates?

Back

Large sections of the Earth's crust that move and interact with each other, causing earthquakes.

Front

What is a seismograph?

Back

An instrument that measures and records the intensity, duration, and direction of seismic waves.

Front

What is the difference between the focus and the epicenter of an earthquake?

Back

The focus is the point inside the Earth where the earthquake originates, while the epicenter is the point on the surface directly above it.

Front

What is a fault line?

Back

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