Earthquakes
What is an earthquake?
When tectonic plates shift against each other
What usually causes a tsunami?
An earthquake on the ocean floor
What is a dormant volcano?
A volcano that is inactive but may erupt in the future
How long can you last without oxygen?
3 minutes
What are fault lines?
Areas where tectonic plates rub together
What happens at the beach just before a tsunami?
The ocean water retreats
What is the name of the chain of volcanoes around the Pacific plate?
The Ring of Fire
How long can you last without food?
3 weeks
What is the epicenter of the earthquake?
The point on the Earth's surface where the earthquake originates.
Tsunami is a Japanese word, what does it translate to?
A) Harbor wave
B) Massive wave
C) Killer wave
D) Thunder wave
A) Harbor wave
What city was destroyed in 79 AD by Mt Vesuvius?
Pompeii
How long can you last without water?
3 days
What was the most powerful earthquake ever?
A) The San Francisco Earthquake
B) The Chilean Earthquake
C) The Great Alaskan Earthquake
D) The Sumatran Earthquake
B) The Chilean Earthquake
Which country has the longest recorded history of tsunamis?
Japan
Which volcano caused the loudest known sound in modern history?
A) Mount St Helens
B) Mount Vesuvius
C) Yellowstone
D) Krakatoa
D) Krakatoa
In extreme conditions, how long can you last without shelter?
3 hours
What is the machine called that measures earthquakes?
A seismograph
What happens to tsunamis when they reach shallow water?
They slow down
What is a pyroclastic flow?
A pyroclastic flow is a hot, chaotic mixture of rock fragments, gas, and ash that travels rapidly (tens of meters per second) away from a volcanic vent or collapsing flow front. Pyroclastic flows can be extremely destructive and deadly because of their high temperature and mobility.
José Salvador Alvarenga spent the longest time surviving where?
The sea