There were several people who posted that there had been an earthquake but they were all at least a minute after mine, yet mine had gifs and a lot of text. The secret is that I typed the post up beforehand and put in all the gifs I liked, and when the earthquake hit, all I had to do was click the "post" button!
You are so kewl! USGS should think about hiring YOU. You could become the first “alert” system, yeknew.