Hey, SL. I don't have an app for the phone, but I have this one for my puter and I love it. You can set it for EMSC or USGS, size of quake, and the alert noise. Boy, that noise I use can be heard in the next state. LOL

[link to addgadgets.com]

I also have this one for Firefox and it's great, too.

[link to www.freebookzone.com]

That one shakes the dickens out of your window when there's a quake. Scares me sometimes. LOL