Earthquakes are now quite frequent

I saw these news reports in Channel News Asia:

a. Taiwan quake causes millions of dollars in damage. A powerful earthquake that rocked southern Taiwan caused millions of dollars in damage to infrastructure and business operations, officials and companies said Friday.

b. Strong earthquake strikes off Indonesia. A 6.5-magnitude quake struck late Friday off the coast of Sumatra in Indonesia, seismologists said, but no tsunami alert was issued and there were no reports of damage or injuries.

We seem to have many earthquakes in recent years - starting form the earthquake that caused the Asian Tsunami in 2005 followed the big earthquakes in Sichuan, Haiti and Chile.

Any comments?