Reg Seismic Waves and Earth's interior 2025

Front

What is the basic composition of Earth's core?

Back

The solid inner core is surrounded by a liquid outer core.

Front

Which city is farthest from the epicenter of an earthquake based on seismogram data?

Back

Nome, Alaska.

Front

What type of seismic wave is characterized by compressional motion?

Back

P-Waves.

Front

Which letter represents the movement created by the P Wave?

Back

B.

Front

What can the difference in arrival times between waves A and B determine?

Back

The distance of the recording station to the epicenter.

Front

What are seismic waves?

Back

Waves of energy that travel through the Earth, typically caused by earthquakes.

Front

What is the difference between P-Waves and S-Waves?

Back

P-Waves are compressional waves that can travel through solids and liquids, while S-Waves are shear waves that can only travel through solids.

Front

What is the role of the outer core in Earth's structure?

Back

The outer core is liquid and generates Earth's magnetic field through its movement.

Front

How do scientists use seismograms to locate an earthquake's epicenter?

Back

By analyzing the arrival times of P-Waves and S-Waves at different locations.

Front

What is the significance of the inner core?

Back

The inner core is solid and extremely hot, composed mainly of iron and nickel.