Question

Question was provided via image upload.

Explanation:

1. The Richter scale (or more modern magnitude scales like Moment Magnitude Scale) is the standard tool for measuring earthquake magnitude via seismographs.
2. Magnitude quantifies the total energy released at the earthquake's origin point.
3. Intensity describes the effects (shaking, damage) felt at specific locations, observed via reports and structural assessments.

Answer:

1. seismograph (or Richter scale/Moment Magnitude Scale)
2. total energy released
3. amount of shaking and damage