EARTHQUAKES SCIENCE

• The atmosphere contains? : nitrogen, oxygen, carbon dioxide, and water
• Nitrogen, oxygen, carbon dioxide, and water: The atmosphere contains?
• Crust: It is the outermost solid layer of Earth which includes the soil and that covers Earth's surface
• Silicon and aluminum: What are the abundant elements in rocks?
• Moho: It seperates the crust from the next layer beneath it
• Mantle: Below the crust
• Asthenosphere: The upper part of the mantle
• Core: The innermost, much denser or compacted layer because of the weight of all rocks above it
• Pacific plate: The largest of the plate
• Convergent boundary: Is the area where two plates push againts each other
• Fault: Is a zone fracture between two blocks of rock which may be a few milimeters to thousands of kilometers
• Uplift: Rising of the Earth's crust
• Subsidence: Is the sideways movement of Earth's crust
• Thrust: Is the sideways of rock layers
• Earthquakes: Usually occurs where two plates are running into or sliding past each other along faults
• Seismology: Is the study of all Earthquakes
• Earthquake belt: Is narrow zone on the Earth's surface around which most earthquakes occur
• Pacific Ring Of Fire: Most of the world's strongest earthquakes occur
• Hypocenter: Is the point within the earth when an earthquake starts
• Epicenter: Is a point on Earth's surface which is directly above the focus
• Seismic waves: Spreads out from the focus and from the epicenter
• Wave: Is a push which moves out in all directions
• Surface wave: These are waves that travel at the surface of the Earth
• Body waves: These are waves which travel through Earth's interior
• Push waves: These are waves that travel through all states of matter at an average of 8 kilometers
• Secondary wave: These are waves that travel through the earth by displacing rocks at the right angle to their direction of travel
• Tortional wave: It consist of a twisting disturbance throughout the earth
• Seismograph: Is made up of a seismometer, which detects ground vibration and a recorder which makes vibrations visible on a permanent record
• Photographic seismograph recorder: It has a mirror which reflects a light beam onto a sheet of photographic paper
• Intensity: It refers on its strength
• Magnitude: Is the amount of energy released at the focus of a quake based on the amplitude of seismic waves radiated by the earthquake
• Richter Magnitude Scale: Is developed by Charles Richter