M4.8 earthquake 5 km WSW of Chiba, Japan
A magnitude 4.8 earthquake struck 5 km WSW of Chiba, Japan on Fri, Mar 19, 1982, 12:51 AM JST (15:51 UTC), 74 km (46 mi) below the surface.
A larger quake followed: M4.9 10 km ESE of Omigawa, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1982-03-18 15:51:05 UTC
- Depth
- 73.6 km (45.7 mi), intermediate-depth
- Epicenter
- 35.574° N, 140.063° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 9 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.610 km ESE of Okunoya, Japan · 16270 days ago · 94 km deep · 84 km away
- 4.03 km ENE of Honch?, Japan · 16246 days ago · 72 km deep · 16 km away
- 4.08 km NNW of Yokohama, Japan · 16243 days ago · 75 km deep · 42 km away
- 4.42 km WSW of Sakura, Japan · 16242 days ago · 60 km deep · 19 km away
- 4.910 km ESE of Omigawa, Japan · 16240 days ago · 66 km deep · 66 km away
- 4.82 km SSW of Sakai, Japan · 16239 days ago · 65 km deep · 62 km away
- 4.511 km E of Tateyama, Japan · 16231 days ago · 100 km deep · 67 km away
- 4.842 km ENE of ?hara, Japan · 16219 days ago · 58 km deep · 76 km away
- 4.133 km SSW of Miura, Japan · 16212 days ago · 33 km deep · 95 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001k6p. Read Sun, Oct 4, 2026, 8:41 AM UTC.