Ticsani features three lava domes, which were generated by latest Pleistocene and Holocene activity; two of which are located within or at the margins of craters. An earlier compound volcano is today preserved as a long arcuate ridge, which is northeast of the northernmost dome and opens to the west; a cryptodome is exposed within the arcuate ridge. The complex reaches a height of . The position of the lava domes and the structure of the compound volcano were influenced by local fault systems.