Earthquake Alarm is a free and useful app for Android smartphones and tablets. The app is designed to work with your phone's built-in microphone and will alert you to any impending earthquake in your area. If your phone is running on battery, then the app will also help you to keep it from running out.

The app uses your phone's microphone to detect any earthquake signal and will wake you up in the morning if there is a need to do so. It can be used to set the alarm for any time and date.

You will be notified by an alarm sound and will have the option to turn the notification on or off.