M4.0 earthquake 33 km SSE of Yilan, Taiwan
A magnitude 4.0 earthquake struck 33 km SSE of Yilan, Taiwan on Thu, Jun 1, 1978, 11:20 PM GMT+8 (15:20 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.3 41 km NE of Jiufen, Taiwan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1978-06-01 15:20:16 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 24.486° N, 121.897° E
- Region
- Taiwan
- 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.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 12
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.341 km NE of Jiufen, Taiwan · 17615 days ago · 229 km deep · 99 km away
- 3.98 km SSW of Hualien City, Taiwan · 17610 days ago · 36 km deep · 72 km away
- 4.937 km SSE of Yilan, Taiwan · 17585 days ago · 27 km deep · 6 km away
Before
- 5.048 km SSE of Yilan, Taiwan · 17647 days ago · 2 km deep · 15 km away
- 4.921 km E of Hualien City, Taiwan · 17650 days ago · 33 km deep · 58 km away
- 4.122 km WNW of Yonakuni, Japan · 17665 days ago · 102 km deep · 93 km away
- 4.211 km ENE of Jiufen, Taiwan · 17670 days ago · 181 km deep · 75 km away
- 4.643 km WNW of Yonakuni, Japan · 17671 days ago · 37 km deep · 79 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000uvd (also filed as iscgemsup680259). Read Tue, Sep 22, 2026, 10:00 AM UTC.