The Shillong Plateau is a plateau

Plateau

In geology and earth science, a plateau , also called a high plain or tableland, is an area of highland, usually consisting of relatively flat terrain. A highly eroded plateau is called a dissected plateau...

 in eastern Meghalaya

Meghalaya

Meghalaya is a state in north-eastern India. The word "Meghalaya" literally means the Abode of Clouds in Sanskrit and other Indic languages. Meghalaya is a hilly strip in the eastern part of the country about 300 km long and 100 km wide, with a total area of about 8,700 sq mi . The...

 state, northeastern India. The plateau's southern, northern, and western ridges form the Garo

Garo Hills

The Garo Hills are part of the Garo-Khasi range in Meghalaya, India. They are inhabited mainly by tribal dwellers. Shillong, the capital of Meghalaya, is located in this range. It is one of the wettest places in the world. The range is part of the Meghalaya subtropical forests ecoregion.Garo Hills...

, Khasi

Khasi Hills

The Khasi Hills are part of the Garo-Khasi range in the Indian state of Meghalaya, and is part of the Patkai range and of the Meghalaya subtropical forests ecoregion...

, and Jaintia Hills respectively.

The plateau shows numerous fracture lineaments in satellite images and has been subjected to extensive compressive forces in the N-S and E-W direction. Several deep earthquakes point to tectonic activity in the mantle

Mantle (geology)

The mantle is a part of a terrestrial planet or other rocky body large enough to have differentiation by density. The interior of the Earth, similar to the other terrestrial planets, is chemically divided into layers. The mantle is a highly viscous layer between the crust and the outer core....

, such as from the 1897 Assam earthquake along the blind Oldham Fault.