Matsuya Adjusts Latitude by 0.000001 Degrees at 4 Stores Simultaneously — About 11cm Coordinate Correction in Osaka, Shiga, Miyagi, and Tokyo

It was confirmed that on April 25 at 11:30, the latitude of 4 Matsuya stores was simultaneously revised, each decreasing by 0.000001 degrees.

The 4 Stores Affected

Store Name	Location	Before (lat)	After (lat)
Matsuya Miyakojima Tomobuchi-cho Store	Miyakojima Ward, Osaka City, Osaka Prefecture	34.7123975	34.7123965
Matsuya Route 8 Nagahama Store	Nagahama City, Shiga Prefecture	35.3870945	35.3870935
Matsuya Sendai Ichibancho Store	Sendai City, Miyagi Prefecture	38.2621431	38.2621421
Matsuya Iwamotocho Store	Chiyoda Ward, Tokyo	35.6945556	35.6945546

In every case, the latitude decreased by 0.000001 degrees (a shift southward in the northern hemisphere). Since 0.000001 degrees of latitude corresponds to roughly 11cm, each store’s position on the map effectively moved about 11cm to the south.

A Systematic Bulk Correction?

All 4 stores show the exact same 0.000001-degree difference, and the regions involved are unrelated to one another (Osaka, Shiga, Miyagi, and Tokyo). This suggests the change was not an individual per-store coordinate correction, but rather a systematic rounding process or bulk correction.

The actual physical location of each store remains unchanged, so there is no practical impact on customers. Following yesterday’s 9cm longitude adjustment at the Ota Maruyama Store, this correction is further evidence of just how precisely Matsuya manages its data.