Matsuya Mibu Store's Longitude Corrected Westward by 0.000001° Twice in 30 Minutes Before Opening (Cumulative ~18cm)

On the Matsuya official website’s store list, the 10:28 AM update on June 18, 2026 had just applied minor 0.000001° coordinate corrections to two pre-opening new stores (Mibu Store and Shin-Yurigaoka Store) when, only 30 minutes later, the 10:58 AM update confirmed a further 0.000001° westward correction to the longitude of Matsuya Mibu Store (2297). Consecutive 0.000001° corrections at a 30-minute interval mark an especially short pace even within the “ultra-fine pre-opening adjustment” phase, bringing Mibu Store’s cumulative shift for the day to -0.000002° (about 18cm west). Shin-Yurigaoka Store (2321) saw only a single southward latitude correction at 10:28, with no further changes in the 10:58 update.

Today’s Correction Timeline, 10:28–10:58

Time	Store	Prefecture	Axis	Before	After	Distance & Direction	Cumulative for the Day
10:28	Matsuya Mibu Store (2297)	Mibu, Shimotsuga District, Tochigi Prefecture	Longitude	139.8373887	139.8373877	~9cm west	-0.000001° (~9cm west)
10:28	Matsuya Shin-Yurigaoka Store (2321)	Asao Ward, Kawasaki City, Kanagawa Prefecture	Latitude	35.6049225	35.6049215	~11cm south	-0.000001° (~11cm south)
10:58	Matsuya Mibu Store (2297)	Mibu, Shimotsuga District, Tochigi Prefecture	Longitude	139.8373877	139.8373867	~9cm west	-0.000002° (~18cm west)

0.000001° of latitude equals about 11cm on the ground, while 0.000001° of longitude equals about 9cm at the latitude of central Honshu. Mibu Store received two consecutive corrections in 30 minutes, while Shin-Yurigaoka Store stopped after a single correction at 10:28 — the two stores’ behavior diverged.

Matsuya Mibu Store: Longitude Corrected Westward Twice in 30 Minutes

Matsuya Mibu Store is located at 1-3382-22 Omocha no Machi, Mibu, Shimotsuga District, Tochigi Prefecture, and is scheduled to open at 10:00 AM on June 30, 2026. In just a 30-minute span today, at 10:28 and 10:58, its longitude was corrected westward in two steps: 139.8373887 → 139.8373877 → 139.8373867. The cumulative shift is -0.000002° (about 18cm) westward. Its latitude (36.4625875) remains unchanged for now. With about 12 days left until opening, only one axis of the store’s coordinates is being corrected repeatedly at an extremely short interval.

Matsuya Shin-Yurigaoka Store: Latitude Correction Stops After One Step

Matsuya Shin-Yurigaoka Store is located at 1-16-7 Manpukuji, Asao Ward, Kawasaki City, Kanagawa Prefecture, and is scheduled to open at 10:00 AM on June 26, 2026. At 10:28, its latitude was corrected southward by 0.000001° (about 11cm), from 35.6049225 to 35.6049215, but no further correction came in the 10:58 update. Its longitude (139.5068346) also remains unchanged. With about 8 days left until opening, the movement has settled at a single step as of today.

Pace Comparison with the Past Case of Matsuya Ota-Maruyama Store

As a past precedent for ultra-fine 0.000001°-class coordinate adjustments around store openings: on April 21, 2026, the longitude of Matsuya Ota-Maruyama Store (Tochigi Prefecture) was corrected westward by 0.000001° (about 9cm); the longitude was corrected again by 0.000001° just before its opening on April 25; and then, on April 27, three days after opening, a much larger correction of about 127m in the opposite direction was made. Whereas that precedent’s corrections were spaced by days — 4 days, then 2 days — Mibu Store’s current corrections came at an extremely short 30-minute interval. Even within the same “ultra-fine pre-opening adjustment” phase as the precedent, the frequency differs greatly.

A Separate Axis from Another Store’s Ongoing Southward Series

On a separate axis, Matsuya Miyakojima-Tomobuchicho Store (2214, Osaka Prefecture) has an ongoing series of southward latitude corrections of 0.000001° each, now totaling seven since April 25. Mibu Store’s current movement is a consecutive westward longitude correction — a different axis and direction from the Miyakojima-Tomobuchicho series (a single southward-latitude axis). Amid multiple parallel 0.000001°-class series across stores, Mibu Store’s movement suggests it could be the starting point of a new “consecutive westward longitude correction series.”