Ube and Sanyo-Onoda power restored after about 3,040 properties affected
Electricity was restored at 07:07 JST on 30 October 2026 after an outage affecting approximately 3,040 properties in listed parts of Ube and Sanyo-Onoda, Yamaguchi Prefecture, Japan. The operator’s outage-history table records a 05:00 JST start and lists the cause as unknown. Restoration applies to that recorded footprint.

Status of this incident
Current status unconfirmed
Last known status: restored, according to the source · Operator history records restoration at 07:07 JST on 30 October in the listed parts of Ube and Sanyo-Onoda; cause unknown.
Source moment: Oct 30, 2026, 06:18 AM UTC (03:18 PM local time)
In 20 seconds
The operator records an outage from 05:00 to 07:07 JST on 30 October in listed parts of Ube and Sanyo-Onoda.
Approximately 3,040 properties is the operator’s maximum estimate at onset, including brief interruptions; it is not a count of people.
Restoration is recorded for the listed footprint; the cause remains unknown.
Two-city outage recorded as restored
The history row gives a start of 05:00 JST and restoration at 07:07 JST on Friday 30 October. Those times correspond to 20:00 UTC and 22:07 UTC on Thursday 29 October. The difference in calendar date reflects Japan’s time zone. The operator’s row identifies parts of Ube and Sanyo-Onoda in Yamaguchi Prefecture, rather than a prefecture-wide interruption.
The page was updated at 15:18 JST on 30 October, equivalent to 06:18 UTC. That page-update time is separate from both the outage start and the recorded restoration. The exact publication time of the individual history row is unknown. The report therefore uses the event times from the row, without treating the later page update as a new interruption.
What the sources tell us, and what they do not
- Recorded area
- Listed parts of Ube and Sanyo-Onoda, Yamaguchi Prefecture, Japan
- Status and impact
- Restored; approximately 3,040 properties at maximum onset estimate; cause unknown
- Event times
- 30 October 2026, 05:00–07:07 JST / 29 October 2026, 20:00–22:07 UTC
Approximate property count and unknown cause
The operator lists approximately 3,040 properties. Its count represents the maximum at onset and includes properties with brief interruptions, so it should not be read as a constant total throughout the recorded period. It is a property estimate, not a population figure. No independent address-level check is available in the scanner evidence.
The cause is recorded as unknown. The restored status applies to the footprint listed for this row and does not establish the status of every property in either city or elsewhere in Yamaguchi. No technical connection with other Japanese outages has been established. Separate incidents cannot provide a diagnosis for this interruption simply because they occurred in the same region or on the same day.
Preparing essential devices for future interruptions
The grid-down essentials guide covers household preparation. The runtime calculator helps compare essential device demand with battery capacity, and the internet backup guide covers connectivity planning. These resources support preparation for future interruptions; they do not establish the technical cause or verify supply at an individual address.