An open experiment — not a finished alarm.
We'd rather under-promise and show our work. Here's exactly what HERD is today, what it could become, and the one thing we're testing before anything else.
A research network you can join
An open science mission, a low-cost infrasound sensor in development, a public library of 75 sources, and a community building it in the open.
Early detection, if it proves out
A dense citizen network whose open data could one day give coastal communities extra minutes — as a complement to official systems, never a replacement.
Can cheap sensors beat the noise?
Before any mass launch we measure one thing: can a network of $25 barometers catch a real low-frequency event with an acceptable false-alarm rate?
HERD is a research network and open data — a complement to official warning systems, not a certified alarm. How we prove it →





