Can volcanic eruptions create a delta?

Yes, volcanic eruptions can create a delta, although it's less common than river or sedimentary deltas. When a volcano erupts, it can deposit ash and lava flows into a body of water, which can accumulate over time. If these materials build up enough and create land that extends into the water, a delta can form. Additionally, volcanic islands can develop deltas at their shores through the accumulation of sediment and volcanic debris.