[Critical Bill]

won't drilling holes create the very tsunami's that you want to prevent?

No sure how? We would be talking about 1 meter wide holes that would gradually release pressure.

[Quix]

Temperatures and pressures would prevent getting anything that would remotely hold it's shape a fraction of the distance.

The massive temperatures and pressures involved would require 10's of thousands, if not hundreds of thousands of such drill holes.

It would be much more possible to move Los Angeles to Mars.

[RFEngineer]

"We would be talking about 1 meter wide holes that would gradually release pressure."

Wow, you already have provided engineering specifications for earthquake prevention.......You're good.

Wouldn't it be more effective to inject ice water to solidify the earth's core?