how deep underground needed to hide from nuclear attack, would 2,000 feet be enough?

No — 2,000 feet underground is far more than enough for “hide from the blast” purposes , but real survival depends much more on shielding, sealing, ventilation, water, and the shelter’s engineering than depth alone. Public sources commonly describe much shallower depths as useful for blast and fallout protection, while noting that deeper underground structures can offer much stronger protection overall.

What depth changes

• Blast: Even around 10 feet of earth can provide substantial protection from immediate blast effects in some scenarios.

• Fallout/radiation: More depth and thick shielding reduce exposure, but the quality of shielding matters as much as depth.

• Structural survival: A deep bunker only helps if the surrounding rock and construction can actually withstand the shock and avoid flooding, heat, and air-supply failures.

Is 2,000 feet enough?

Yes, 2,000 feet is deeper than the examples most public guides mention for civilian sheltering , and it is in the range of very large hardened underground facilities cited as extremely robust. But that does not mean “perfect safety,” because a nuclear attack can still create problems like collapse, trapped access routes, toxic gases, power loss, and long-duration fallout conditions above ground.

Practical reality

If your question is about a real shelter, the safer takeaway is:

1. Depth helps a lot, but it is not the main design factor.
2. Mass shielding and airtight construction matter more than simply digging deeper.
3. A well-designed shelter at 10–50 feet can be more survivable than a poorly engineered cavern at 2,000 feet.

If you want, I can also give you a plain-English comparison of “10 feet vs 100 feet vs 2,000 feet” for blast, fallout, and long-term survival.