This natural disaster, which can happen due to volcanic or earthquake activity, has caused more deaths than lava flows. tsunami landslides or mudslides liquefaction fires

The correct answer is: landslides or mudslides.

Lava Flows are actually not that dangerous: Lava is very often slow and could even be outrun - so not too many people die due to lava flows.

On the other hand, landslides and mudslides are very catastrophic and can wipe entire villages.