Unit 2 ~ Part 2: Lesson 1 & 2 - Flashcard

Front

What is a tsunami?

Back

A large ocean wave generated by vertical motion of the seafloor.

Front

Where do most earthquakes occur?

Back

In the oceans and along the edges of continents.

Front

What causes the formation of volcanoes and volcanic eruptions?

Back

The motion of Earth's tectonic plates.

Front

What is resonance in the context of earthquakes?

Back

The vibration of structures at the same frequency as seismic waves.

Front

What causes earthquakes?

Back

The buildup and release of stress along plate boundaries.

Front

What are tectonic plates?

Back

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

Front

What is the Richter scale?

Back

A scale used to measure the magnitude of earthquakes.

Front

What is the focus of an earthquake?

Back

The point within the Earth where an earthquake originates.

Front

What is the epicenter of an earthquake?

Back

The point on the Earth's surface directly above the focus.

Front

What is a volcanic eruption?

Back

The release of magma, gas, and ash from a volcano.