CSIRA BasCon Memorandum
Unregistered Undersea Installation
Low (posted for environmental background profiling only)
The following video fragment was encountered during salvage operations on the St. John's metabase (1452:16-02/02/54), where it had evidently been embedded during a shrapnel databurst from a Class-4 Madonna. Origin and timestamp are unknown; however, the fragment does not appear to be a forgery (86% confidence).
Video detritus extracted from St. John's metabase archive. Hard echoes represent metallic objects, and are highlighted in the enhanced image (right).
This appears to be part of a sonar composite showing an unregistered undersea complex somewhere on the Mid Atlantic Ridge, north of the Atlantis Fracture Zone*. Note the presence of disconnected structures peripheral to the central complex, suggesting that construction may have occured in at least two phases. We hypothesize that
the structures are of North American origin;
the central complex predates the North American ßehemoth Breakpoint; and
the peripheral structures antedate that breakpoint by no more than six months (although we cannot rule out the possibility that expansion is ongoing).
These findings are especially interesting in light of the unexplained simultaneous disappearance of nearly a thousand high-level corporate citizens during the '51-'52 fiscal year.
CSIRA cannot pinpoint the precise location of these structures based on the available data, nor can we spare the resources for a comprehensive search of the MAR. This installation appears to be a refuge, in which case its inhabitants will be averse to any contact with the outside world. They are thus unlikely to exert any significant impact on CSIRA operations, and can probably be ignored. However, the existence of this telemetry implies that the installation is being monitored by external agencies outside CSIRA's sphere of influence; this is a potentially troubling development. Please tune all on-stream filters to flag similar data with a logical connection of five steps or less.
*Based on a Kita Principal-Components Analysis of apparent substrate corrugation.