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Contract to Study Detecting Nuclear Tests with Smart Phones (2014-2015)

The State Department paid to find out whether the accelerometers and microphones in ordinary smartphones could detect a nuclear test. The work ran through 2014 and 2015. Someone requested the file in November 2014 and got it in April 2026.

A page from Contract to Study Detecting Nuclear Tests with Smart Phones (2014-2015)
Page 7 of the document.

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The State Department paid for a study on whether the accelerometers and microphones already inside ordinary smartphones could detect a nuclear test. Distributed sensing on that scale is a serious proposition for arms control verification, since a treaty is easier to monitor when several million phones are incidentally seismometers.

What came back under FOIA is not the study. It is the contract, filed under SAQMMA14M1816, and the released material runs to payment instructions, electronic funds transfer exceptions, and the mailing address of the Charleston Financial Service Center:

For vendors who are granted an EFT exception, the payment address on the invoice must match the remittance address in the vendor record cited in the award.

The request went in during November 2014, while the work was still being done. The answer arrived eleven and a half years later.

Provenance

Original source
https://www.governmentattic.org/62docs/DOSdetNukeTstsSmartPhones2014-2015.pdf
Collected
This copy
1.7 MB · 49 pages · archived here
Rights
Work of the US federal government, not subject to copyright (17 U.S.C. 105).
SHA-256
0b9f01f59a3247423b57dcd4ed341b39dd6d39cb1fd54e438c9d1733fb61be55

Accession № 0005. If you hold rights in this and would rather the copy did not exist, say so and it comes down.