Earthquake · Japan · Active
M5.5 earthquake near Asahi, Japan
Updated · First published
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Summary
A magnitude 5.5 earthquake occurred 5 km ESE of Asahi, Japan on 28 Oct 2026, 15:07 UTC, at a depth of 41.4 km, according to the U.S. Geological Survey (USGS).
USGS PAGER issued a green alert for this earthquake, with an estimated 116,253 people exposed to shaking of intensity V or stronger.
GDACS rated the event green and estimated 99,916 people in MMI V.
37 people submitted “Did You Feel It?” reports to the USGS.
Key figures
- Magnitude
- 5.5 (mww) (USGS)
- Depth
- 41.4 km (USGS)
- Origin time
- 28 Oct 2026, 15:07 UTC (USGS)
- Location
- 5 km ESE of Asahi, Japan (USGS)
- USGS PAGER alert
- Green (USGS PAGER)
- Max shaking (ShakeMap MMI)
- 4.8 (USGS)
- “Did You Feel It?” reports
- 37 (USGS DYFI)
- People exposed to MMI V or stronger
- 116,253 (USGS PAGER)
- GDACS alert
- Green (GDACS)
- GDACS population in MMI V
- 99,916 (GDACS)
- Review status
- Reviewed (USGS)
Population exposure (USGS PAGER)
- Japan: 22,847,373 people at MMI IV or stronger
Places with estimated shaking (USGS PAGER)
- Tomisato (population 49,470) — estimated intensity MMI 4.7
- Asahi (population 63,507) — estimated intensity MMI 4.6
- Sosa (population 34,427) — estimated intensity MMI 4.5
- Tonosho (population 13,085) — estimated intensity MMI 4.5
- Yokoshibahikari (population 22,271) — estimated intensity MMI 4.5
- Kamisu (population 95,471) — estimated intensity MMI 4.4
Timeline
Source times where the record has one; otherwise the time GodsView saw the change.
- — USGS PAGER alert: green.
- — GDACS rates the event green.
- — USGS reports a magnitude 5.5 earthquake 5 km ESE of Asahi, Japan, depth 41.4 km.
Nearby
Airports
- Narita (NRT) Tokyo · 29 km
- Haneda (HND) Tokyo · 85 km
Live public webcams
Questions
When did this earthquake happen?
The USGS origin time is 28 Oct 2026, 15:07 UTC.
How strong was the earthquake?
USGS reports magnitude 5.5 (mww) at 41.4 km depth.
What alert level did USGS PAGER give?
Green. PAGER levels estimate likely fatalities and economic losses from the shaking.
Where can I find official information?
From the original records: USGS. Links are listed under Sources on this page.
Sources
How this page is made
GodsView compiles this page automatically from public data: the U.S. Geological Survey (USGS) earthquake feeds, the Global Disaster Alert and Coordination System (GDACS) and NASA EONET. News stories are matched to the event by place, event type and publication time, and link to the original publishers. Figures are shown as the sources report them and may be revised. For warnings and safety advice, follow your local authorities.