Earthquake Grade 4

What is a Tsunami?

• A powerful ocean wave

• A powerful tidal wave

• A powerful wind

• A powerful storm

Around which ocean do about 90% of the world's major earthquakes occur?

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

• Southern Ocean

Can a seismologist predict the earthquake?

• Yes

• No

Which earthquake is the most powerful ever to be recorded in North America?

• The Sumatran Earthquake

• The San Francisco Earthquake

• The Great Alaskan Earthquake

• The Chilean Earthquake

What is the most common cause of earthquakes?

• A sudden shift at the boundary between the tectonic plates

• A volcano erupting

• A tsunami

• Shock wave

Which part of the world the tectonic plates move the most and caused the highest rate of volcano eruption and earthquakes?

• In India

• Near the South America Plate

• In Pacific Ocean

• Around Ring of Fire

Which of the continental drift movement caused the earthquake?

• Convergent

• Divergent

• Transform

• Epicenter

What is the epicentre of an earthquake?

• The point inside the Earth where earthquake begins

• The line that marks movement between two tectonic plate

• The point on the Earth surface directly above the earthquake centre

• The vibration that caused when the tectonic plates move

What is a seismic wave?

• Shock wave that travel through Earth's centre

• Tidal Wave

• Instrument used to measure the wave

• Ocean wave

Which instruments do seismologist used to measure the earthquake wave?

• Thermometer

• Seismograph

• Richer Scale

• Mercalli Scale