The greatest earthquake since 1900 was where?
Your options are
a. Chile
b. San Francisco
c. Alaska
d. Puerto Rico
e. Hawaii
The 1960 Valdivia earthquake or Great Chilean Earthquake (Spanish: Gran terremoto de Valdivia) of 22 May 1960 is to date the most powerful earthquake ever recorded, rating 9.5 on the moment magnitude scale.
Puerto Rico Earthquake