| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 15.0 km |
| Coordinates | 44.244, -128.966 |
| UTC time | 1977-07-28 15:22:18.500 |
Earthquake details
Thursday, July 28, 1977 Earthquake
The earthquake hit off the coast of Oregon on Thursday, July 28, 1977 at 15:22 UTC with a magnitude of 5.4. The closest known location in the current dataset is Corvallis, about 454.9 km away. The epicenter is located at longitude -128.966 and latitude 44.244.
| Location | off the coast of Oregon |
| Country | off the coast of Oregon |
| Severity | Strong |
Earthquake map 1977-07-28
Closest countries
The 12 closest cities near the epicenter.
| Corvallis | 454.9 km |
| Albany | 467.7 km |
| McMinnville | 468.5 km |
| Eugene | 470.0 km |
| Springfield | 475.2 km |
| Salem | 476.4 km |
| Keizer | 477.8 km |
| Hillsboro | 492.3 km |
| Grants Pass | 498.4 km |
| Aloha | 500.7 km |
| Walnut Creek Ct, Tigard | 502.6 km |
| Beaverton | 505.4 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.3
off the coast of Oregon
Unknown · 2026-09-07 01:30 UTC
71.8 km
M 4.6
off the coast of Oregon
Unknown · 2026-09-07 01:30 UTC
49.0 km
M 4.0
off the coast of Oregon
Unknown · 2026-08-04 02:46 UTC
63.0 km
M 4.0
off the coast of Oregon
Unknown · 2026-04-07 20:49 UTC
52.8 km
M 4.3
off the coast of Oregon
Unknown · 2026-03-16 07:44 UTC
81.0 km
M 6.0
Corvallis
United States · 2026-01-16 03:25 UTC
95.6 km
M 4.3
off the coast of Oregon
Unknown · 2025-12-20 14:05 UTC
34.8 km
M 4.0
off the coast of Oregon
Unknown · 2025-12-09 15:12 UTC
41.6 km
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