Earthquake Risk in NYC: Real but Low—What You Should Know

Yes, earthquakes can and do occur in New York City. While not on a plate boundary, the region sits within the stable North American Plate with ancient, reactivated faults.

Key Fault Systems

• Ramapo Fault: NJ–NY border, 300 km long. Capable of M5.0+. Last significant: 1884 (M5.2, NYC felt strongly).
• 125th Street Fault: Runs under Manhattan (125th St to East River). Minor quakes recorded.
• Long Island Sound Fault: Offshore, potential tsunami source (low probability).
• Gettysburg-Newark Basin: Extends SW; M4–5 possible.

Recent Felt Events

• 2010: M3.0, Queens
• 2011: M5.8, Mineral, VA (widely felt in NYC, swaying high-rises)
• 2014: M3.8, Brooklyn
• 2023: M2.9, Westchester (felt citywide)

Risk Assessment

• USGS hazard map: NYC = moderate (4–8% chance of damaging shaking in 50 years)
• Building stock: Pre-1995 unreinforced masonry most vulnerable. Modern codes (post-1995) require seismic design.
• Amplification: Soft soils (filled land, alluvial valleys) amplify shaking 2–3x vs. bedrock.

Preparedness

• Drop, Cover, Hold On – practice annually (Great ShakeOut)
• Secure heavy furniture, water heaters, gas lines
• Emergency kit: water, food, meds, flashlight, radio, cash (72 hrs)
• Know your building's plan; identify safe spots
• Text, don't call, post-quake (network congestion)

Insurance

Standard policies exclude earthquake. Endorsement or separate policy needed. Cost: $100–$500/yr for typical NYC apartment; deductibles 5–20%.