Emphasis was usually put on the horizontal acceleration factor, for the simple reason that ordinary structures have a built-in safety factor for the vertical component; that is, gravity. Charles Francis Richter accelerationbuildcomponent Change image and share on social
For example, some stars put out large amounts of energy in the infrared part of the spectrum, so that this can produce a different relative magnitude rating than using light energy from the middle of the spectrum. Charles Francis Richter amountenergyinfrared share on social
I suggested that we might compare earthquakes in terms of the measured amplitudes recorded at these stations, with an appropriate correction for distance. Charles Francis Richter amplitudecomparecorrection Change image and share on social
From here, it becomes an engineering problem; the engineer considers the ground motion that will occur and evaluates the requirements of the proposed structure in the light of the local foundation conditions. Charles Francis Richter conditionconsiderengineer share on social