Just a couple of minutes after we experienced the third alarm, we're here in the hallway listening to the fourth one. Avinoam heard an explosion but it seemed to be far away; I didn't hear anything. I'm busy writing and our TV is blasting in the background.
I was in the middle of doing "sponja" - mopping the floors - when the alarm came on. Since we're stuck here the whole day, I guess it might as well be clean!