Understanding Earthquakes and Their Effects

The video tutorial explains the structure of the Earth, comparing its layers to a hard-boiled egg. It discusses the movement of tectonic plates and how this leads to earthquakes, distinguishing between volcanic and tectonic types. The video further explains the concepts of magnitude and intensity, detailing how they are measured and their effects. It concludes with the impact of earthquakes on structures and the environment, particularly in the Pacific Ring of Fire.

Which layer of the Earth is similar to the shell of a hard-boiled egg?

• Crust

• Outer Core

• Core

• Mantle

What causes an earthquake?

• Movement of tectonic plates

• Solar flares

• Erosion of mountains

• Changes in weather

What type of earthquake is caused by volcanic activity?

• Tectonic earthquake

• Oceanic earthquake

• Volcanic earthquake

• Seismic earthquake

How is earthquake magnitude expressed?

• With letters

• In Roman numerals

• With decimals

• In percentages

What does the intensity of an earthquake refer to?

• The speed of tectonic plate movement

• The effects and damage caused

• The duration of the earthquake

• The depth of the earthquake

Who developed the Richter scale?

• Charles F. Richter

• Albert Einstein

• Isaac Newton

• Galileo Galilei

What magnitude range on the Richter scale can cause windows to break?

• 6 to 6.9

• 4 to 4.9

• 2 to 2.9

• 0 to 1.9

What is the likely outcome if an earthquake measures 9 or above on the Richter scale?

• No noticeable effect

• Near total destruction

• Minor vibrations

• Moderate damage

What natural disaster can earthquakes potentially trigger?

• Hurricanes

• Tsunamis

• Tornadoes

• Floods

Why is the Philippines frequently affected by earthquakes?

• It has many tall buildings

• It has a high population density

• It is part of the Pacific Ring of Fire

• It is located near the equator