Science Lesson 3: This is how it is built! Flashcards
(37 cards)
Earthquakes that occur under the sea; Japanese word for “Harbor Waves”
Tsunami
Shaking of the ground caused by tremendous release of energy due to the pressure in Earth’s crust
Earthquake
Fracture in between two blocks of rock
Fault
Hanging walls fall down
Normal Fault
Visible line/crack on the Earth’s surface
Fault Line
Movement of a hanging wall
Dip-Slip Fault
Fault with little to no movement
Strike-Slip Fault
Hanging wall moves upwards
Reversed Fault
Causes of Earthquakes
- Volcanic Eruption
- Tectonic Plate Movement
- Manmade Activities
Effects of Earthquakes
- Intense Shaking.& Ground ruptures
- Collapsing houses/buildings
Slope or inclination of any geological surface
Dip
Rock that falls above the fault line
Hanging Wall
Rock that falls below the fault line
Foot Wall
Horizontal line drawn on the sloping surface
Strike
2 Types of Body Waves
Primary (P-Waves) and Secondary (S-Waves)
2 Types of Surface Waves
Love waves and Rayleigh Waves
This type of Body waves can travel through solid only and has less velocity.
Secondary (S-Waves) Waves
This type of body wave can travel through both solid and liquid and travels faster.
Primary (P-Waves) Waves
Wave that sweeps the surface in a side-to-side motion
Love Waves
Wave that moves in an up-and-down movement
Rayleigh Waves
Instrument that detects/measures seismic waves
Seismograph
Print/Display screen of seismic data
Seismogram
Is internal in a seismograph; acts as a pendulum
Seismometer
It is the quantitive measure of the energy released by an earthquake
Magnitude