Answer: The correct answer is Severe damage.
Step-by-step explanation:
Richter scale is defined as the scale which measures the magnitude of earthquake with the help of seismograph oscillations.
Each level on the Richter scale is 10 times stronger than the previous level. This scale measures the magnitude the strength of earthquake upto 10.
Hence, strength of over 8.0 on the Richter scale will cause severe damage.