| Magnitude | 5.7 |
| Alert | Strong |
| Depth | 8.1 km |
| Coordinates | 40.408, -125.647 |
| UTC time | 1983-12-20 10:41:02.250 |
Earthquake details
Tuesday, December 20, 1983 Earthquake
The earthquake hit United States on Tuesday, December 20, 1983 at 10:41 UTC with a magnitude of 5.7. The closest known location in the current dataset is Redding (United States - US), about 276.2 km away. The epicenter is located at longitude -125.647 and latitude 40.408.
| Location | Santa Rosa |
| Country | United States (US) |
| Severity | Strong |
Earthquake map 1983-12-20
Closest countries
The 12 closest cities near the epicenter.
| Redding | 276.2 km |
| Grants Pass | 297.5 km |
| Medford | 314.9 km |
| Chico | 333.2 km |
| Santa Rosa | 333.9 km |
| Rohnert Park | 342.4 km |
| Petaluma | 354.7 km |
| Novato | 368.6 km |
| Yuba City | 372.5 km |
| Napa | 372.7 km |
| San Rafael | 381.6 km |
| Woodland | 384.1 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.2
Santa Rosa
United States · 2026-05-07 09:42 UTC
|
304.8 km |
|
M 4.4
Santa Rosa
United States · 2026-05-07 09:42 UTC
|
303.7 km |
|
M 4.2
Santa Rosa
United States · 2026-02-21 17:22 UTC
|
302.0 km |
|
M 4.2
Santa Rosa
United States · 2026-01-08 08:00 UTC
|
294.7 km |
|
M 4.0
Santa Rosa
United States · 2025-12-14 23:30 UTC
|
345.7 km |
|
M 4.3
San Francisco
United States · 2025-09-22 09:56 UTC
|
407.0 km |
|
M 4.1
Santa Rosa
United States · 2025-08-14 12:48 UTC
|
301.2 km |
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