Natural Hazards

What type of volcanic hazard is shown in the picture?

• Pyroclastic Flow

• Mudflow

• Lava flow

• Volcanic Ash Flow

How are volcanos monitored by scientists?

• Ground vibrations are collected by a seismometer and studied.

• Scientists may blow up volcanos to create craters in the earth to study.

• Scientists dig into the volcano to see what the interior looks like.

Where are volcanoes usually located?

• over hot spots

• in the ocean

• over land

• along plate boundries

What type of volcanic hazard is shown in the picture?

• Volcanic Eruption Triggered Landslide

• Volcanic Ash Flow

• Pyroclastic Flow

• Lava Flow

• Mudflow

What is another name for lahar?

• pyroclastic flow

• mudflow

• landslide

• lava flow

When a volcano doesn't form along a plate boundary, where do they form?

• along plate boundaries

• in the ocean

• in the mountains

• over hot spots

What volcanic hazard moves the slowest?

• Landslides

• Mudflows

• Pyroclastic Flows

• lava flows

What is the primary cause of a volcanic eruption?

• Movement of tectonic plates

• Weather changes

• Human activities

• Solar flares

Which type of plate boundary usually has the most earthquakes?

• divergent

• convergent

• transform

Which scale that measures earthquake intensity, is based off the effects on people and structures?

• The Modified Mercalli Intensity Scale

• The Richter Scale

• Moment Magnitude scale