USGS · October 21, 2026
Magnitude 4.5 earthquake near Honchō, Japan
A magnitude 4.5 earthquake was recorded near 2 km N of Honchō, Japan on Oct 21, 2026, 10:04 AM (local time at the epicentre — UTC+9), at a depth of about 90.3 km, according to USGS.
USGSFelt by 5 people · community intensity III (weak)Intermediate (70–300 km)Reviewed by a seismologist
Updated 2026-10-21 03:09 UTC
The full record
- Magnitude
- M 4.5 · body-wave magnitude
- Location
- 2 km N of Honchō, Japan
- Local time at the epicentre
- Oct 21, 2026, 10:04 AM — UTC+9
- Time (UTC)
- 2026-10-21 01:04 UTC
- Depth
- 90.3 km · Intermediate (70–300 km)
- Coordinates
- 35.724, 139.984
- Felt reports
- Felt by 5 people · community intensity III (weak)
- Tsunami
- No tsunami evaluation was flagged for this earthquake.
- Significance
- 313 / 1000 · notable event
- Solution quality
- 35 seismic stations used · 134° azimuthal gap (well-constrained epicentre)
- Review status
- Reviewed by a seismologist
- Catalog
- USGS
Epicentre and nearby recent earthquakes
The highlighted circle is this earthquake. Smaller circles are other events recorded nearby in the last 30 days.
What the shaking was like
At this depth the energy spreads out before it reaches the surface, so shaking is usually weaker but felt over a wider area.
People who reported it described intensity III (Weak): Felt indoors; hanging objects swing, like a passing truck.
Felt it yourself? USGS collects first-hand reports through “Did You Feel It?”, and those reports are what produce the community intensity above.
Who lives nearby
About 24,228,128 people live in towns within 30 km of the epicentre, and 55,222,810 within 100 km. Distances are from the epicentre to the town centre.
| Place | Distance | Population |
|---|---|---|
| Funabashi | 2.6 km E | — |
| Honchō | 2.6 km S | 644,668 |
| Baraki | 4.2 km SW | 9,991 |
| Kamagaya | 5.3 km NNE | 109,932 |
| Myōden | 6.0 km SW | 14,646 |
| Ichikawa | 7.0 km W | 496,676 |
| Narashino | 7.1 km SE | 176,197 |
| Ichikawa-minami | 7.2 km W | — |
| Mizue | 8.7 km WSW | 10,827 |
| Matsudo | 9.6 km NW | 498,575 |
Earthquake history in this area
10 earthquakes of magnitude 4.5+ have been recorded within 200 km of this epicentre since 1960, in Japan.
Other earthquakes near this epicentre
16 other events within 100 km in the last 30 days.
M 4.7 6 km ESE of Tōgane, Japan
M 4.3 3 km SSW of Funaishikawa, Japan
M 4.9 3 km WSW of Shibayama, JapanFelt · 4
M 3.4 1 km E of Isehara, Japan
M 4.5 3 km ESE of Sugito, JapanFelt · 4
M 3.3 5 km NW of Sukayama, Japan
M 3.6 5 km WNW of Asahi, Japan
M 5.3 0 km NNE of Yōkaichiba, JapanFelt · 25
M 3.2 4 km NW of Ōgushi, Japan
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Frequently asked questions
How strong was the 2 km N of Honchō, Japan earthquake?
Magnitude 4.5 (body-wave magnitude), at a depth of 90.3 km. At this depth the energy spreads out before it reaches the surface, so shaking is usually weaker but felt over a wider area.
Exactly when did it happen?
Oct 21, 2026, 10:04 AM (local time at the epicentre — UTC+9). In universal time: 2026-10-21 01:04 UTC.
Was it felt?
Felt by 5 people · community intensity III (weak). Felt indoors; hanging objects swing, like a passing truck.
Was there a tsunami warning?
No tsunami evaluation was flagged for this earthquake.
Which towns are closest to the epicentre?
The closest is Funabashi, 2.6 km E.
Are earthquakes normal in this area?
Yes. The largest earthquake recorded within 200 km since 1960 was magnitude 7.9 (47 km E of Ōarai, Japan, 2011), and 16 further events were recorded within 100 km in the last 30 days.
How do I get alerts for the next earthquake here?
Install the free SeismoWatch Android app, draw a box over this area, set a minimum magnitude, and turn alerts on.
About this page
Event data: U.S. Geological Survey (USGS), the European-Mediterranean Seismological Centre (EMSC), in Venezuela FUNVISIS and in Brazil the RSBR through the Centro de Sismologia da USP. Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.