Our histogram titled Earthquake Frequency shows the total number of earthquakes per Richter Scale magnitude class during the time period under study (1600 - 2020).
According to the dataset, earthquakes at 7.5 magnitude seem to be the most frequent throughout this time period with 250 counts.
The second most frequent Richter Magnitude class is 6 with 198 counts of occurrences.
The magnitude is a number that characterizes the relative size of an earthquake.
The depth of focus or focal depth refers to how deep within the earth an earthquake occurs.
The earthquake count goes back as far 1600; however, it was noted that data was limited prior to 1900.