how to make water ripple (circles)

[squareroot13]

How to make a water ripples (circles on the water) ?
It can be implements as shader or animation . I prefer an animation, but agree to use shader.

[Shrishashank]

Here How You Can Do With Animation Method

Rectangle {
    width: radius * 2
    height: radius * 2
    color: "rgba(255, 255, 255, 0.4)"
    radius: width / 2
    anchors.centerIn: parent
    // Animation to expand the ripple
    NumberAnimation {
        target: parent
        property: "radius"
        from: 0
        to: 100       
        duration: 1000 
        loops: Animation.Infinite
        easing.type: Easing.OutElastic
    }
}