Quiz: How Volcanologists Monitor Volcanoes?

What is the primary function of a seismometer?

• To measure atmospheric pressure

• To detect tiny volcanic earthquakes beneath a volcano's surface

• To predict the exact time of a volcanic eruption

• To measure the temperature of lava

Volcanic earthquakes are triggered by what?

• The eruption of a volcano

• The movement of tectonic plates

• The movement of magma within a volcano's magma chamber

• The cooling of lava on the volcano's surface

What do seismograms help us to determine about a volcano?

• If it is extinct

• If it is the tallest volcano

• If it is showing signs it will erupt

• If it has a large magma chamber

What is the benefit of sharing seismogram data with local authorities?

• They can improve the accuracy of the seismometer

• They can provide educational tours about volcanoes

• They can warn people about the oncoming danger and potentially save lives

• They can use the data for scientific research only

What is the primary purpose of using Global Positioning System (GPS) monitoring on volcanoes?

• To predict the exact time of volcanic eruptions

• To measure any movement on the surface of the volcano

• To track the movement of lava during an eruption

• To monitor the temperature of the volcano

What is the purpose of taking a rock core sample from a volcano?

• To determine the chemical composition of the volcano

• To identify the different types of ash, igneous, or sedimentary rock

• To measure the temperature of the volcano

• To install monitoring equipment

How is a rock core sample taken?

• By collecting rocks from the surface of the volcano

• By using satellites to scan the volcano

• By drilling into the ground surrounding the volcano

• By using remote sensing technology

What is tephra?

• A tool used for drilling into the volcano

• A type of sedimentary rock

• Light-colored rock expelled by a volcano during an eruption

• A method to predict future volcanic eruptions

What is the significance of gas plumes emitted by volcanoes?

• They are just a byproduct of eruptions and have no significant use.

• They help us understand how and why volcanoes erupt.

• They are used to predict the weather around volcanoes.

• They are harmful to the environment and need to be controlled.

What does the MultiGAS spectrometer monitor?

• The temperature of the lava inside the volcano.

• The seismic activity around the volcano.

• A detailed chemical analysis of all the gases that are detected in one area.

• The size of the volcano.