Title: Sinkhole Causes and High-Risk Areas in Korea

 Title: Sinkhole Causes and High-Risk Areas in Korea (2025 Update)

🕳️ What is a Sinkhole?

A sinkhole is a sudden collapse of the ground due to underground cavity formation.
It often results in major road damage and public safety risks in urban cities like Seoul and Incheon.

🔍 Key Causes of Sinkholes


🌿 Natural Causes

  • Karst terrain (limestone dissolution)

  • Sudden underground water level changes

🏗️ Human-Made Causes

  • Subway and tunnel construction

  • Water pipe leakage due to aging infrastructure

  • Old mining zones

⚠️ High-Risk Sinkhole Zones in Korea

  1. Songpa-gu, Seoul – subway-related collapses

  2. Goyang City – unstable soil and excessive groundwater usage

  3. Bupyeong-gu, Incheon – outdated sewage system, ground softening

Seoul has designated 50+ high-risk zones as of 2025, especially in Gwangjin-gu, Jongno, and Geumcheon.

🛡️ Prevention Tips

  • Government-led ground investigations

  • Regular maintenance of old water pipes

  • Reduce overuse of underground water

  • Report any cracks or strange road patterns

🧩 Conclusion

Sinkholes are not just a natural disaster — they are preventable urban hazards.
Knowing where and why they occur helps both citizens and governments take timely action.
Let’s stay alert and work together to prevent future sinkhole incidents! 🌏


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