Here's why:

* Volcanoes: The peninsula is home to over 160 volcanoes, including 29 active ones. This makes it one of the most volcanically active regions in the world.

* Eruptions: Volcanic eruptions are a common occurrence, ranging from small ash releases to major explosive events. These eruptions can pose significant risks to surrounding communities and infrastructure.

* Earthquakes: The peninsula is also situated on a major tectonic plate boundary, which makes it prone to earthquakes. These earthquakes can be powerful and destructive, often triggering landslides and tsunamis.

While other natural disasters like floods and storms can also happen, volcanic activity is the most prominent and frequent threat on the Kamchatka Peninsula.