3. Which instrument relies on human observation in measuring earthquake?
A. spring scale
B. Richter scale
C. Mercalli scale
D. weighing scale
A. spring scale
B. Richter scale
C. Mercalli scale
D. weighing scale
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Answer:
15b po ang ninakaw ng philhealth char, letter B.
Answer:
A. Richer scale
Explanation:
. The Richter scale is an outdated method for measuring magnitude that is no longer used by the USGS for large, teleseismic earthquakes. The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.
Intensity is a measure of the shaking and damage caused by the earthquake; this value changes from location to location.