Claims that a recent magnitude 7.1 earthquake in southwestern Japan was man-made spread on social media after the July 28 temblor. Reports say the conspiracy theory gained traction quickly, with at least one prominent post attributing the seismic waves to an “explosion, not a quake.” The theory references the earthquake affecting Kumamoto prefecture and circulates despite a lack of credible evidence.
Experts quoted by outlets dismiss the idea as unrealistic, pointing to practical and technical barriers as well as financial and implementation concerns. They argue that producing seismic waves comparable to a natural earthquake would require capabilities far beyond what is feasible for private individuals or groups, and that the existing characteristics of the event align with natural tectonic activity rather than a manufactured source.
While the posts continue to draw significant attention online, coverage emphasizes that the man-made explanation remains unsubstantiated and is not supported by scientific consensus. Authorities and specialists do not endorse the claims and treat them as conspiracy content.
