hazards Flashcards
What are the three main types of plate boundaries?
Divergent, convergent, and transform.
True or False: Earthquakes occur only at convergent boundaries.
False.
Fill in the blank: The _______ is a tectonic plate boundary where two plates move apart.
divergent boundary.
Which natural hazard is primarily associated with tectonic plate movement?
Earthquakes.
What scale is commonly used to measure the magnitude of earthquakes?
Richter scale.
What is the main cause of tsunamis?
Underwater earthquakes.
Multiple Choice: Which of the following is NOT a type of volcanic eruption? A) Plinian B) Effusive C) Convergent D) Strombolian
C) Convergent.
What is the term for the area where two tectonic plates meet?
Plate boundary.
Name one case study of a significant earthquake.
The 2010 Haiti earthquake.
True or False: All volcanoes are found at plate boundaries.
False.
Fill in the blank: The _______ is the point on the Earth’s surface directly above the earthquake’s focus.
epicenter.
What is subduction?
The process where one tectonic plate moves under another.
Multiple Choice: Which tectonic plate is the largest? A) North American Plate B) Eurasian Plate C) Pacific Plate D) African Plate
C) Pacific Plate.
What is the main hazard associated with volcanic eruptions?
Lava flows and ash clouds.
Name one effect of earthquakes on human settlements.
Destruction of buildings.
True or False: The Ring of Fire is an area with high volcanic activity.
True.
What is a hotspot in geological terms?
A location where magma rises through the mantle to form volcanoes.
What are tectonic plates primarily made of?
Lithosphere.
Fill in the blank: The _______ is a measure of the amount of energy released during an earthquake.
magnitude.
Which type of boundary is associated with mountain building?
Convergent boundary.
Name a country that is located on a transform boundary.
The United States (San Andreas Fault).
What is liquefaction?
The process by which saturated soil loses strength during an earthquake.
Multiple Choice: Which of the following is a secondary hazard of earthquakes? A) Tsunami B) Landslide C) Fire D) All of the above
D) All of the above.
What is a volcanic island arc?
A chain of volcanoes formed at a convergent boundary.
