M5.1 earthquake 30 km E of Gero, Japan
A magnitude 5.1 earthquake struck 30 km E of Gero, Japan on Wed, Oct 3, 1984, 9:12 AM JST (00:12 UTC), 15 km (9 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1984-10-03 00:12:18 UTC
- Depth
- 14.7 km (9.1 mi), shallow
- Epicenter
- 35.813° N, 137.568° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (III JMA) at Iida, (II JMA) at Fukui, Hamamatsu and Kofu. Also felt at Kyoto, Nagoya and Yokohama.
From the USGS event page for usp00027vs. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- CONSTRAINED_BY_DEPTH_PHASES
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 0 in the 60 days after this one and 6 in the 30 days before it.
Before
- 4.320 km E of Gero, Japan · 15357 days ago · 5 km deep · 11 km away
- 5.017 km E of Gero, Japan · 15357 days ago · 10 km deep · 14 km away
- 5.717 km E of Gero, Japan · 15357 days ago · 10 km deep · 14 km away
- 4.417 km E of Gero, Japan · 15358 days ago · 10 km deep · 13 km away
- 4.933 km ENE of Gero, Japan · 15358 days ago · 10 km deep · 10 km away
- 6.223 km E of Gero, Japan · 15358 days ago · 10 km deep · 8 km away
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00027vs. Read Thu, Oct 1, 2026, 4:13 PM UTC.