M4.3 earthquake 18 km E of Funaishikawa, Japan
A magnitude 4.3 earthquake struck 18 km E of Funaishikawa, Japan on Thu, Aug 20, 2026, 2:28 PM JST (05:28 UTC), 50 km (31 mi) below the surface.
A larger quake followed: M5.8 3 km E of Fujishiro, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 2026-08-20 05:28:40 UTC
- Depth
- 49.9 km (31.0 mi), shallow
- Epicenter
- 36.452° N, 140.776° E
- Region
- Japan
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 11.5 km horizontally, 10.6 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 201°, poorly surrounded by stations
- Stations used
- 37
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 since this one and 4 in the 30 days before it.
After
- 5.83 km E of Fujishiro, Japan · 39 days ago · 61 km deep · 82 km away · felt by 156
- 4.648 km ESE of Iwaki, Japan · 34 days ago · 49 km deep · 76 km away
- 4.77 km ENE of Hasaki, Japan · 32 days ago · 35 km deep · 78 km away · felt by 12
- 4.81 km SE of Ishige, Japan · 14 days ago · 80 km deep · 81 km away · felt by 73
- 4.31 km SSW of Kōzaki, Japan · 4 days ago · 76 km deep · 72 km away
- 4.92 km SW of Sakai, Japan · 2 days ago · 71 km deep · 98 km away · felt by 69
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000tm2a. Read Wed, Sep 30, 2026, 11:39 PM UTC.