Google announced a half dozen updates to Android. Earthquake alerts uses smartphone accelerometers to detect sudden earth movements. this was introduced last year augest.

When phone detects an earthquake, it will send a signal to Google’s earthquake detection server, along with a location of where the tremor occurred. The server will then combine the information it has received from multiple Android phones to figure out if an earthquake is happening.

The system is already live in New Zealand and Greece, with Turkey, the Philippines, Kazakhstan, Kyrgyz Republic, Tajikistan, Turkmenistan, and Uzbekistan coming on board.

For users of the in-built Messages app on Android, there is now a chance of having those messages encrypted.

End-to-end encryption is available in one-on-one conversations between Messages users with chat features enabled. A lock symbol at the top of the chat appears to be the visual feedback that a conversation is encrypted. RCS chat feature need to be enabled for both end users. RCS is not compatible with Apple’s iMessage protocol.

The company said it had introduced the ability for users to star messages, contextual Emoji Kitchen suggestions, given the option for voice control to only work when the user is looking at the screen, as well as better voice password input