bomb ever went off in the area other than the readings the satellite provided, it is widely regarded as either a malfunction or a magnetospheric event affecting the instruments aboard the satellite. At the time of the event, President Jimmy Carter deemed the event evidence of a joint Israeli-South African nuclear test, though since then no evidence has been uncovered to corroborate whether that is true or untrue. Vela Uniform Vela Uniform was the second half of Project Vela that began its development soon after the PTB Treaty was put into effect. Vela Uniform was created with the intention of monitoring seismic activity in order to determine the magnitude and location of any covert nuclear weapons tests beneath the surface of the earth. Underground tests have been illegal under international law since the widespread ratification of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Vela Uniform can also detect underwater tests conducted at any point on the Earth's surface. The methods DARPA used to create a system with which they could determine the difference between a regular seismic event and an underground covert nuclear test involved the rigorous measurement of seven nuclear tests in the continental United States, as well as numerous smaller experiments using conventional high explosives rather than nuclear explosions. Over time, Vela Uniform's methods and techniques for measuring seismic activity to determine the existence and location of covert underground nuclear tests have improved, and stations for seismographical monitoring exist all around the world. This has had the effect of giving more nations the ability to better understand their own country's seismic activities, and has given more and more countries access to aid in situations of earthquakes, tsunamis, and other such events, as well as ensuring the detection of any future covert underground nuclear tests. References Research projects Nuclear weapons policy Nuclear weapons program of the United States Projects of the United States Air Force