M4.2 earthquake 6 km SW of Oyama, Japan
A magnitude 4.2 earthquake struck 6 km SW of Oyama, Japan on Thu, Jul 5, 1973, 2:26 AM JST (17:26 UTC), 69 km (43 mi) below the surface.
A larger quake followed: M4.6 7 km WNW of Tsukuba, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1973-07-04 17:26:24 UTC
- Depth
- 69.0 km (42.9 mi), shallow
- Epicenter
- 36.260° N, 139.746° 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.
- Stations used
- 26
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.24 km ENE of Iwai, Japan · 19436 days ago · 63 km deep · 28 km away
- 3.85 km ENE of Funaishikawa, Japan · 19421 days ago · 62 km deep · 82 km away
- 3.36 km N of Ashikaga, Japan · 19416 days ago · 14 km deep · 31 km away
- 4.67 km WNW of Tsukuba, Japan · 19415 days ago · 81 km deep · 25 km away
- 4.68 km ENE of Funaishikawa, Japan · 19411 days ago · 61 km deep · 85 km away
- 4.15 km ESE of Sakai, Japan · 19391 days ago · 61 km deep · 22 km away
- 3.58 km NNW of Funaishikawa, Japan · 19391 days ago · 53 km deep · 77 km away
- 3.64 km N of Urayasu, Japan · 19389 days ago · 50 km deep · 62 km away
- 5.111 km WSW of Kanuma, Japan · 19388 days ago · 115 km deep · 30 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00002j0. Read Tue, Sep 22, 2026, 8:57 PM UTC.