yuれるreru
1.

To move around a central point in various directions, often in a gentle or rhythmic manner, as seen when leaves dance in the breeze or when a boat rocks on the waves.

2.

To experience instability or uncertainty, particularly in situations where a stable condition is expected, such as feelings of indecision or the fluctuating state of political affairs.

Example:

大地が揺れるのが感じられた。