A detailed morpho-bathymetric study of the Comoros archipelago, based on mostly unpublished bathymetric data, provides a first glimpse into the submarine section of these islands. It offers a complete view of the distribution of volcanic structures around the archipelago, allowing to discuss the origin and evolution of this volcanism. Numerous volcanic cones and erosional-depositional features have been recognized throughout the archipelago. The magmatic supply is focused below one or several volcanoes for each island, but is also controlled by lithospheric fractures evidenced by volcanic ridges, oriented along the supposed Lwandle-Somali plate boundary. Massive mass-wasting morphologies also mark the submarine flanks of each island. Finally, the submarine geomorphological analysis made possible to propose a new scheme for the succession of the island's growth, diverging from the east-west evolution previously described in the literature.

基于大部分未发布的测深数据，对科摩罗群岛进行的详细的形态测深研究，提供了对这些岛屿海底部分的初步了解。它提供了整个群岛火山结构分布的完整视图，从而可以讨论该火山活动的起源和演变。整个群岛都已认识到许多火山锥和侵蚀沉积特征。每个岛的岩浆供应集中在一个或几个火山的下方，但也受到沿假想的Lwandle-Somali板块边界定向的火山脊所证明的岩石圈破裂的控制。大量的浪费性形态也标志着每个岛屿的海底侧面。最后，