How to Identify Earthquake-Safe Buildings: 2025 Checklist Guide

Turkey is located on the Alpine-Himalayan seismic belt, one of the world''s most active earthquake zones. The 2023 Kahramanmaraş earthquakes, which claimed over 50,000 lives and damaged more than 200,000 buildings, demonstrated once again how critical it is to choose earthquake-resistant buildings. Considering the expected 7.0+ magnitude earthquake in Istanbul, earthquake safety should be the top priority in any real estate purchase.

Turkey''s Earthquake Reality

93% of Turkey''s territory is under earthquake risk, and 98% of the population lives in earthquake-prone areas. The country has experienced numerous devastating earthquakes throughout its history, and scientists indicate that the probability of a major earthquake in Istanbul in the near future is over 70%.

Earthquake Zones in Turkey

How to Identify Earthquake-Resistant Buildings

Structural Checklist

1. Construction Year: Buildings constructed after 2000 were built according to updated earthquake codes. Post-2018 buildings are in the safest category as they comply with the latest "Turkey Building Earthquake Code (TBDY 2018)."
2. Structural System: Prefer buildings with reinforced concrete frame or shear wall systems. Masonry and prefabricated buildings carry higher risk.
3. Number of Floors: Low-rise buildings (up to 5 floors) are generally safer. High-rise buildings should use advanced technologies like seismic isolators and dampers.
4. Ground Survey: The type of soil on which the building was constructed is critically important. Rocky ground is safest; soft/alluvial ground is riskiest.
5. Regular Geometry: Rectangular or square-planned buildings are more earthquake-resistant than irregularly shaped ones.
6. Soft Story: Buildings with ground-floor voids for shops or parking carry "soft story" risk. This risk can be mitigated by reinforcing the ground floor.

Earthquake Risk Reports and Inspections

Mandatory Checks

1. Earthquake Risk Report: Obtain the building''s earthquake risk report from firms licensed by the Ministry of Environment and Urbanization.
2. Occupancy Permit: Verify whether the building has an occupancy permit (iskan). Buildings without one carry legal and safety risks.
3. Zoning Status: Check if the building complies with the zoning plan. Unauthorized floors or illegal construction increase earthquake risk.
4. Ground Survey Report: Review the ground survey report for the area where the building was constructed, evaluating soil type, bearing capacity, and liquefaction risk.
5. DASK Policy: Verify the existence and validity of the mandatory earthquake insurance (DASK) policy.

Earthquake Risk in Istanbul: Safe Areas

Ground Safety by District

Urban Transformation and Retrofitting

Turkey''s urban transformation process continues under Law No. 6306 on the Transformation of Areas Under Disaster Risk. This process covers the identification, demolition, and reconstruction of risky buildings with earthquake-resistant new structures.

Urban Transformation Process

1. Risk Assessment: Building owner or the Ministry commissions a risk assessment from a licensed firm.
2. Risky Building Decision: If the report yields a "risky" result, the building is registered as a risky structure.
3. Agreement Process: An agreement is reached between unit owners and the contractor (2/3 majority is sufficient).
4. Demolition: The building is evacuated and demolished.
5. New Construction: A new building is constructed in compliance with current earthquake regulations.
6. Delivery: New apartments are delivered to unit owners.

Earthquake Preparedness Checklist

Home Preparations

• Emergency Bag: Prepare a bag with water, dry food, medications, flashlight, batteries, whistle, first aid kit, and copies of important documents.
• Furniture Anchoring: Secure bookshelves, cabinets, and heavy items to walls.
• Gas and Electricity: Know the location of the main gas valve and electrical breaker and learn how to shut them off.
• Assembly Point: Learn the location of the nearest earthquake assembly point.
• Family Plan: Create a communication and meeting plan with family members.

Structural Retrofitting Options

• Carbon Fiber Reinforcement (CFRP): Wrapping columns and beams with carbon fiber to increase strength.
• Concrete Jacketing: Adding new reinforced concrete layers around columns and beams. More comprehensive but more effective.
• Steel Reinforcement: Supporting the structural system with steel profiles. Quick to apply and can be cost-effective.
• Shear Wall Addition: Adding new shear walls to increase lateral rigidity.

DASK (Natural Disaster Insurance)

• Coverage Limit: In 2025, the maximum coverage limit is approximately $31,500.
• Premium: Annual premiums range from $14 to $143 depending on building age, type, area, and earthquake zone.
• Coverage: Covers building damage, not contents. Additional insurance is needed for contents.
• Mandatory: DASK policy is required for title deed transactions and lease agreements.

Earthquake Safety Checklist for Property Buyers

1. Check the construction year - Post-2018 is safest
2. Request the occupancy permit - Legal requirement
3. Review the ground survey report - Soil bearing capacity
4. Obtain an earthquake risk report - From a licensed firm
5. Evaluate the structural system - Prefer reinforced concrete
6. Check for soft story - Watch for ground-floor voids
7. Examine building geometry - Prefer regular geometry
8. Verify DASK policy - Must be current and valid
9. Research fault line distance - Prefer over 5 km distance
10. Get professional consultation - Engineer and real estate advisor

Expert Opinion: "Earthquake safety should be the top priority criterion in real estate investment. Price and location matter, but no investment is valuable without structural safety. At Century21 Perfect, we meticulously evaluate the earthquake safety of all properties in our portfolio." — Century21 Perfect Bağdat Caddesi Technical Advisory Team

Choosing an earthquake-resistant building is not just an investment decision but a life decision. With accurate information, thorough research, and professional support, you can make a safe and valuable real estate investment.

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