One reason is that I've noticed sometimes it takes me a few seconds to be able to tell if it's genuinely an earthquake or if something else is causing a vibrati

One reason is that I've noticed sometimes it takes me a few seconds to be able to tell if it's genuinely an earthquake or if something else is causing a vibration, and sometimes it actually takes a few seconds for it to become noticeable... then a few seconds on top of that for me to figure out how to react. Any kind of confirmation notification at that point would be extremely helpful to snap me into action and avoid needless delays. Another reason is that, well, I might be asleep, and ideally I'd prefer to wake up with a notification, rather than (say) with something falling on my head...