Calm down. The world isn’t coming to an end. Hashem is controlling this all. He put these things here for us to take a lesson. Have you realized this happened to someone else, not you? That means that you are supposed to look and think “why is Hashem doing this?” Don’t freak out. Hashem is showing all of Klal Yisrael a major sign. We must do Teshuva. We must do our hishtadlus to keep ourselves safe and the rest is up to Hashem. Daven that He should keep all of Klal Yisrael safe. B”H the boys in Japan who are imprisoned were not hurt. Hashem chooses who will die and who will live. We must trust him to keep us safe because there is NOTHING you can do to prevent an earthquake from happening or a tsunami or murder. No matter how much protection you put up, if Hashem wants something to happen, it will. We learn in pirkei avos that a person should do hishtadlus, nothing more because all Hashem wants is hishtadlus and if He still says no, its no-no matter what you try. We can only change a gezaira with tshuva, tfilla and tzedaka. Hashem is in control. He is protecting those who are supposed to be protected. Do your hishtadlus but don’t panic.
BTW I live on the west coast where e/1’s been saying is the most danger. We have nuclear plants all along our beach and we are prone to earthquakes. Also there’s stuff going around that the radiation can travel here. If Hashem wants something to happen, it will. Otherwise, we just Daven for protection.