| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 31.0 km |
| Coordinates | 38.394, 143.113 |
| UTC time | 1978-09-23 22:43:10.600 |
Earthquake details
Saturday, September 23, 1978 Earthquake
The earthquake hit Japan on Saturday, September 23, 1978 at 22:43 UTC with a magnitude of 5.4. The closest known location in the current dataset is Ōfunato (Japan - JP), about 142.8 km away. The epicenter is located at longitude 143.113 and latitude 38.394.
| Location | Sendai |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1978-09-23
Closest countries
The 12 closest cities near the epicenter.
| Ōfunato | 142.8 km |
| Kesennuma | 144.9 km |
| Kamaishi | 146.0 km |
| Ishinomaki | 158.2 km |
| Yamoto | 165.6 km |
| Higashimatsushima | 168.7 km |
| Miyako | 172.4 km |
| Tome | 174.0 km |
| Ichinoseki | 181.7 km |
| Shiogama | 181.7 km |
| Tagajō-shi | 184.8 km |
| Rifu | 186.6 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.6
Ishinomaki
Japan · 2026-08-04 14:00 UTC
67.7 km
M 4.9
Ishinomaki
Japan · 2026-07-03 01:44 UTC
91.2 km
M 4.4
Kesennuma
Japan · 2026-06-11 14:22 UTC
99.9 km
M 4.4
Kesennuma
Japan · 2026-06-06 20:02 UTC
97.0 km
M 4.4
Ishinomaki
Japan · 2026-03-06 20:35 UTC
89.0 km
M 4.8
Ishinomaki
Japan · 2026-03-06 20:31 UTC
77.2 km
M 4.1
Ishinomaki
Japan · 2026-02-25 21:52 UTC
79.4 km
M 4.5
Sendai
Japan · 2026-02-06 17:56 UTC
91.0 km
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