Answer:
South of San Bernardino has more earthquakes because they have about 10,000 in a year but Cajon has about 160 earthquakes in a year therefore south San Bernardino earthquakes most didnt really damage places so 100 plus magnitude of 3.0 and only 15-20 are greater magnitude of 4.0. Cajon has less earthquakes a year and not big magnitude damages as South of San Bernardino so as you can see here we have South of San Bernardino earthquakes rising each and every year.
Step-by-step explanation:
I gave the answer i will do it once more :))