Which phenomenon exacerbates collapse-sinkhole formation during intense rainfall on karst?

💡 Explanation

Increased water infiltration causes increased soil bulk density because greater total weight promotes downward forces, driving subsidence via mechanical compaction and dissolution. Resulting overburden stresses cause sinkhole collapse, where increased bulk increases loads, rather than hydraulic unloading.

• Which slope instability risk increases significantly as permafrost thaws in subarctic regions?
• Which geographic feature limits orographic precipitation on the leeward side of the Andes mountains during strong prevailing winds?
• Which catastrophic outcome results when a glaical outburst flood ('jökulhlaup') encounters weakly consolidated pyroclastic flows?
• What ocean dynamics create stronger ocean upwelling along the western coasts of continents around the globe?
• Which erosional outcome dominates when persistent winds encounter unconsolidated alluvial plains?
• Which risk significantly increases when a large dam is constructed across an active seismic fault?