M3.5 earthquake 8 km NNW of Funaishikawa, Japan
A magnitude 3.5 earthquake struck 8 km NNW of Funaishikawa, Japan on Tue, Aug 21, 1973, 5:08 PM JST (08:08 UTC), 53 km (33 mi) below the surface.
A larger quake followed: M5.1 11 km WSW of Kanuma, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (mb), minor
- Local time
- UTC
- 1973-08-21 08:08:49 UTC
- Depth
- 53.0 km (32.9 mi), shallow
- Epicenter
- 36.543° N, 140.536° 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
- 7
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 7 in the 30 days before it.
After
- 5.111 km WSW of Kanuma, Japan · 19388 days ago · 115 km deep · 83 km away
- 4.257 km ESE of Takahagi, Japan · 19383 days ago · 25 km deep · 71 km away
- 4.137 km ENE of Kashima-shi, Japan · 19353 days ago · 59 km deep · 67 km away
- 5.62 km NNE of Y?kaichiba, Japan · 19349 days ago · 56 km deep · 92 km away
- 4.01 km SW of Asahi, Japan · 19349 days ago · 61 km deep · 93 km away
- 4.16 km ESE of Asahi, Japan · 19345 days ago · 59 km deep · 96 km away
- 3.953 km E of ?arai, Japan · 19340 days ago · 48 km deep · 60 km away
Before
- 4.15 km ESE of Sakai, Japan · 19391 days ago · 61 km deep · 79 km away
- 4.354 km E of ?arai, Japan · 19402 days ago · 40 km deep · 67 km away
- 4.68 km ENE of Funaishikawa, Japan · 19411 days ago · 61 km deep · 11 km away
- 4.67 km WNW of Tsukuba, Japan · 19415 days ago · 81 km deep · 59 km away
- 4.045 km ESE of Takahagi, Japan · 19416 days ago · 38 km deep · 56 km away
- 3.36 km N of Ashikaga, Japan · 19416 days ago · 14 km deep · 99 km away
- 3.943 km ESE of Takahagi, Japan · 19418 days ago · 40 km deep · 54 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000352. Read Tue, Sep 22, 2026, 12:12 PM UTC.