What is the endorsement that provides coverage for losses arising from sudden collapse of earth due to underground limestone?

The endorsement that specifically addresses coverage for losses arising from the sudden collapse of the earth due to underground limestone is known as the Sinkhole collapse endorsement. This endorsement is tailored for events where the ground beneath a structure collapses suddenly, particularly in areas where limestone is a common geological feature, leading to sinkholes.

These sinkholes can develop when underground limestone is eroded by water, creating voids that can eventually lead to a sudden and catastrophic collapse of the ground above. The Sinkhole collapse endorsement provides insurance coverage for property damage that specifically results from these sudden collapses, which can pose significant risks to structures built above these subterranean environments.

Other endorsements listed, while they pertain to various earth movements, do not specifically provide coverage for the unique risks associated with sinkholes that result from underground erosion and collapse.