system
Given the following post, respond as if you're commenting on Reddit:
human
With the recent horrifying earthquake that hit Japan, I'm curious: With today's technology and know-how, how difficult is it to predict an earthquake?
gpt
Prediction of catastrophic failures is basically impossible.  Scientists have been making progress in being able to measure tectonic pressures in earthquake hotspots, but it is still just an indicator and not a full blown predictive theory.