Earthquake Knowledge

What are the main causes of earthquakes?

• Movement of Winds

• Magnetic field fluctuations

• Tectonic plate movement, volcanic activity, and human activities

• Movement of soil, rocks, and water forms

Explain the difference between P-waves and S-waves.

• P-waves travel through solids, liquids, and gases, while S-waves only travel through solids.

• P-waves are only felt on the surface, while S-waves are felt deep underground.

• P-waves cause more damage during an earthquake than S-waves.

• P-waves travel faster than the speed of light, while S-waves travel at the speed of sound.

How do scientists measure the intensity of an earthquake?

• Measuring the sea level, ground vibrations per hour

• Based on the total damage of properties, lives, and etc.

• Using a seismometer

• Using Richter scale and equipment that records the ground movement

What are the different types of faults that can cause earthquakes?

• Horizontal faults, vertical faults, and diagonal faults

• Surface faults, subsurface faults, and oceanic faults

• Normal faults, reverse faults, and strike-slip faults

• Tectonic faults, volcanic faults, and erosion faults

What are the primary effects of an earthquake on the Earth's surface?

• Ground shaking, surface rupture, and ground displacement

• Heatwave, drought, and blizzard

• Volcanic eruption, tsunami, and tornado

• Landslide, flood, and hailstorm

How do seismographs work in detecting and recording earthquake waves?

• Seismographs detect changes in air pressure caused by earthquake waves

• Seismographs detect changes in temperature caused by earthquake waves

• Seismographs detect vibrations caused by earthquake waves and record them on a seismogram.

• Seismographs detect changes in light intensity caused by earthquake waves