M6.0 earthquake 170 km E of Noda, Japan
A magnitude 6.0 earthquake struck 170 km E of Noda, Japan on Mon, Sep 23, 1968, 2:03 PM JST (05:03 UTC), 26 km (16 mi) below the surface.
A larger quake followed: M6.1 167 km E of Noda, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (mw), moderate
- Local time
- UTC
- 1968-09-23 05:03:51 UTC
- Depth
- 26.4 km (16.4 mi), shallow
- Epicenter
- 40.342° N, 143.796° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 4 in the 60 days after this one and 6 in the 30 days before it.
After
- 6.1167 km E of Noda, Japan · 21182 days ago · 23 km deep · 3 km away
- 6.0200 km E of Noda, Japan · 21156 days ago · 15 km deep · 30 km away
- 5.9126 km E of Noda, Japan · 21134 days ago · 32 km deep · 48 km away
- 6.274 km E of Noda, Japan · 21132 days ago · 49 km deep · 97 km away
Before
- 5.5169 km SSE of Honchō, Japan · 21186 days ago · 26 km deep · 43 km away
- 6.1142 km SSE of Honchō, Japan · 21191 days ago · 27 km deep · 73 km away
- 5.6156 km E of Miyako, Japan · 21194 days ago · 21 km deep · 66 km away
- 5.587 km E of Noda, Japan · 21207 days ago · 32 km deep · 86 km away
- 5.7132 km ENE of Miyako, Japan · 21212 days ago · 22 km deep · 47 km away
- 6.0130 km E of Noda, Japan · 21212 days ago · 25 km deep · 46 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem817296. Read Tue, Sep 22, 2026, 10:50 AM UTC.