M4.0 earthquake 11 km E of Ayabe, Japan
A magnitude 4.0 earthquake struck 11 km E of Ayabe, Japan on Mon, Mar 24, 1980, 10:49 AM JST (01:49 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.8 12 km E of Maizuru, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1980-03-24 01:49:15 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 35.312° N, 135.372° 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.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayJapan earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001665. Read Fri, Oct 2, 2026, 11:11 PM UTC.