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M 5.1 Earthquake 88 km NNW of Uken, Japan

Source: USGS · Japan

A magnitude 5.1 earthquake was recorded by USGS near 88 km NNW of Uken. On the USGS Earthquake Hazards Program scale, M5.1 is classified "Moderate". Among the 1,782 earthquake reports Areazine has published, this M5.1 event ranks stronger than 65% of them (rank #467 by magnitude).

Read this earthquake report in 30 seconds

Magnitude
M 5.1
USGS class
Moderate
Location
88 km NNW of Uken
Archive rank
#467 of 1,782
Source
USGS
Published
September 22, 2026
MODERATE

Sits above 65% of the 1,782 earthquakes in the archive by magnitude; 466 ran stronger.

Record status: a point-in-time USGS detection. Aftershocks, revised magnitude, and felt-report data continue to update on USGS's own event page after publication.

What Happened

A M 5.1 mww earthquake occurred 88 km NNW of Uken, Japan, on October 23, 2026, at 12:06:22 UTC. The event was recorded at a depth of 10 km.

Location Details

The earthquake was located at coordinates 29.0367 latitude, 128.8944 longitude. This places it 88 km NNW of Uken, Japan. A depth of 10 km is considered shallow.

Impact Assessment

No felt reports were available. There was no tsunami advisory (tsunami field value: 0) and no alert level assigned.

What You Should Know

Earthquakes of this magnitude can produce noticeable shaking. Residents in the region should be aware of the possibility of aftershocks and follow standard earthquake safety guidance, such as dropping, covering, and holding on during shaking.

Source

https://earthquake.usgs.gov/earthquakes/eventpage/us7000tj4y - United States Geological Survey

Original source: USGS Official Notice ↗

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Elsewhere in the country: similar length or severity timing 8

Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.

Similar body length

Nearest notices by article body length (850 characters here).

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Similar severity timing

Same severity (medium) notices issued closest in time to September 22, 2026.

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Frequently Asked Questions

Questions readers often have about this USGS earthquake report.

What magnitude was this earthquake? ▾
A magnitude 5.1 earthquake struck 88 km NNW of Uken, Japan, at a depth of 10 km.
What does an M5.1 "Moderate" reading actually indicate? ▾
The USGS classifies M5.1 as "Moderate" on its Earthquake Hazards Program scale. Events in this range are often felt near the epicenter and can cause minor damage to vulnerable structures, though widespread damage is uncommon.
Is this earthquake stronger or weaker than others in the archive? ▾
This is the #467 strongest of the 1,782 earthquake reports in Areazine's archive by magnitude, stronger than 65% of them and weaker than 466 others.
Was Uken likely to feel this earthquake? ▾
This event was centered 88 km NNW of Uken. Shaking intensity falls off sharply with distance from the epicenter and depends on depth and local geology, so check the USGS "Did You Feel It?" report for this event for real felt-shaking data rather than assuming from magnitude and distance alone.

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