Vocabulary
An instrument that detects and records earthquakes
Seismometer
An EQ is usually caused by _____________
Movement along a fault
What does the eruption of volcanoes form?
New formations of mountains
What is a flood
A great flow of water over land that is usually dry
Flooding
A vibration caused by an earthquake
Seismic Wave
An instrument that measures waves caused by EQ's (shows as curvy lines)
Seismograph
What is a volcano
an opening of Earth's crust
True or false: you can prevent high tides in the ocean
False
What occurs with tsunamis?
Flooding
An abnormal rise of the ocean water generated by a storm, over and above normal tides
Storm Surge
What is the best way people can prepare for EQ's
Build earthquake-safe buildings in EQ zones
What causes volcano tremors?
magma moving under the volcano
True or false: floods affect areas near the ocean
True
What is a tsunami typically caused by?
EQ under the ocean
A huge wave caused by an earthquake under the ocean
Tsunami
How does EQs cause damage?
Damage roads, buildings, and bridges.
What is lava called before it erupts from the volcanoes opening?
Magma
How do floods cause damage?
Damage buildings, homes, land because of too much water
What usually causes a hurricane?
heavy rainfall and high wind speeds that causes flooding
A great flow of water over the land that is usually dry
Flood
How can engineers build EQ safe buildings
Wide, short, steel frames
How can volcanoes cause damage?
Destroy homes and buildings, burn down trees, and pollute air
How can buildings be built to withstand floods?
Build structures high off the ground, pumps in basements, and sandbags to hold flood walls
Satellites, radars, measurements from airplanes, and watch ocean conditions