The expansion of the earth's surface is demonstrated by what U.S. state that is believed to be increasing by 1.2 nanostrains per year?

The expansion of the Earth's surface is demonstrated by the state of Hawaii, which is believed to be increasing by approximately 1.2 nanostrains per year. This phenomenon is primarily due to volcanic activity, particularly from the Hawaiian hotspot, which creates new land as lava flows and solidifies. The geological processes in Hawaii provide clear evidence of tectonic and volcanic interactions contributing to the expansion of the Earth's surface.