Earth's rotation was affected by a massive underwater earthquake originating in the Indian Ocean.?

A massive underwater earthquake in the Indian ocean can indeed influence Earth's rotation by redistributing mass and altering the planet's shape. Such seismic events can cause shifts in the Earth's crust, leading to changes in the distribution of water and land, which may slightly affect the length of a day or the tilt of the Earth's axis. These changes are typically minuscule, but they highlight the interconnectedness of geological events and Earth's physical properties. Notably, the 2004 Sumatra earthquake caused a measurable shift in Earth's rotation.