I’ve been using this app for quite a few years now. It’s easy to navigate and is one of my favorites & most used. I live in a tsunami zone so having the ability to keep track of earthquakes and the information this app provides is helpful & also interesting.

The app crashes when you bring up the list of recent earthquakes and tap on one. That should bring to the map and highlight the location. The interface is clumsy and difficult to negotiate. I installed 4 other apps and this one was the least intuitive of the bunch. It was frustrating to find simple options. I could not specify a location and distance from that location to concentrate on an area that I’m interested in, so I would get quite a lot of alerts - and it became annoying. I deleted it after only 15 minutes of use.

After the recent Ridgecrest, California earthquake, I worried a lot about my CA family’s safety. Adding the USGS Earthquake app, which tells me immediately when there has been a quake, where it was and how big it was, I am no longer so anxious. The little ding that alerts me to a quake is a reassurance that I can quickly know if my loved ones are safe.

Data is displayed in real time! Last year, I felt what I thought was an earthquake, and it didn't show in the alerts or on the map. I reported it, and the app researched and verified it was a quake, and updated the map accordingly. Great customer service!