6. Which scale measures an earthquake\'s magnitude? A. Mercalli B. Beaufort C. R
ID: 116447 • Letter: 6
Question
6. Which scale measures an earthquake's magnitude? A. Mercalli B. Beaufort C. Richter D. Reduced Rupert 7. Which instrument measures Earthquake waves? A. magnetometers B. gravimeters C. mass spectrometers D. seismometers 8. What is the geographic point on the Earth's surface that is directly above the point at which an earthquake begins? A. focus B. epicenter C. strike D. dip 9. What type of margins are created when plates slide past each other? A. convergent B. transform C. divergent D. normal 10. What is the driving force behind plate tectonics? A. mid-ocean rift movement B. forces concentrated at the ridge axis C. convection in the mantle D. earthquake activityExplanation / Answer
6) Richter scale
The most common standard of measurement for an earthquake is the Richter scale, developed in 1935 by Charles F. Richter of the California Institute of Technology. The Richter scale is used to rate the magnitude of an earthquake the amount of energy is released. This is calculated using information gathered by a seismograph.
7) seismometers
a seismograph and a seismoscope. The seismograph is an instrument that measures seismic waves caused by an earthquake. The seismograph has three main devices, the Richter Magnitude Scale, the Modified Mercalli Intensity Scale, and the Moment-Magnitude Scale. The seismoscope is an instrument that measures the occurrence or the time of an occurrence of an earthquake Unlike other measuring devices, the seismoscope is a simple device without any technological background. The seismoscope is the oldest and most accurate instrument for measuring direction.
8) epicenter
the point directly above the hypocenter. The locations of earthquakes are frequently identified by the geographic location of their epicenter. The point on earth surface that is directly above the focus, the point where an earthquake or underground explosion originates.
9)Transform
Transform Plate Boundaries are locations where two plates slide past one another. The fracture zone that forms a transform plate boundary is known as a transform fault. Most transform faults are found in the ocean basin and connect offsets in the mid-ocean ridges
10) convection in the mantle
Convection is the most efficient type of heat transport mechanism. It is commonly observed in many natural settings and is most likely the way in which heat is transported from the interior of the Earth.
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