This app was mentioned in 1 comment, with an average of 5.00 upvotes
You'll want the Geonet app for earthquakes and use the Google weather page (Metservice app is a bit shit).
Play store link for Geonet https://play.google.com/store/apps/details?id=nz.org.geonet.quake
If you have an iPhone, reconsider priorities in life /s