M4.6 earthquake 43 km WNW of Yonakuni, Japan
A magnitude 4.6 earthquake struck 43 km WNW of Yonakuni, Japan on Sat, May 6, 1978, 6:02 PM GMT+8 (10:02 UTC), 37 km (23 mi) below the surface.
A larger quake followed: M5.0 48 km SSE of Yilan, Taiwan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1978-05-06 10:02:48 UTC
- Depth
- 37.0 km (23.0 mi), shallow
- Epicenter
- 24.682° N, 122.645° 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
- 20
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.211 km ENE of Jiufen, Taiwan · 17670 days ago · 181 km deep · 89 km away
- 4.122 km WNW of Yonakuni, Japan · 17665 days ago · 102 km deep · 21 km away
- 5.048 km SSE of Yilan, Taiwan · 17647 days ago · 2 km deep · 74 km away
- 4.033 km SSE of Yilan, Taiwan · 17645 days ago · 33 km deep · 79 km away
- 4.575 km SSW of Yonakuni, Japan · 17641 days ago · 33 km deep · 97 km away
- 4.477 km NNE of Yonakuni, Japan · 17637 days ago · 164 km deep · 87 km away
- 4.341 km NE of Jiufen, Taiwan · 17615 days ago · 229 km deep · 87 km away
Before
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000udw (also filed as iscgemsup681893). Read Tue, Sep 22, 2026, 8:56 AM UTC.