491151.515397_388554 — Secure

To a passing freighter, it is just another swell in an endless march of waves. But to the Deep-Ocean Assessment and Reporting of Tsunamis (DART) buoy tethered nearby, it is the center of the world. Beneath this coordinate lies a silent landscape of abyssal plains, miles below the surface, where light hasn't touched the silt in millions of years.

A pressure sensor on the sea floor that feels the "weight" of the entire ocean above it, listening for the tectonic shiver of an earthquake. 491151.515397_388554

In the world of map data, these numbers typically point to a very specific patch of earth. If we interpret them as coordinates ( To a passing freighter, it is just another