| Magnitude | 6.0 |
| Alert | Strong |
| Depth | 15.0 km |
| Coordinates | 39.734, -124.415 |
| UTC time | 1940-12-20 23:40:56.880 |
Earthquake details
Friday, December 20, 1940 Earthquake
The earthquake hit United States on Friday, December 20, 1940 at 23:40 UTC with a magnitude of 6.0. The closest known location in the current dataset is Redding (United States - US), about 196.6 km away. The epicenter is located at longitude -124.415 and latitude 39.734.
| Location | Redding |
| Country | United States (US) |
| Severity | Strong |
Earthquake map 1940-12-20
Closest countries
The 12 closest cities near the epicenter.
| Redding | 196.6 km |
| Santa Rosa | 205.7 km |
| Rohnert Park | 214.6 km |
| Chico | 220.7 km |
| Petaluma | 227.2 km |
| Novato | 241.5 km |
| Napa | 243.9 km |
| Yuba City | 249.5 km |
| San Rafael | 255.1 km |
| Woodland | 256.4 km |
| Vacaville | 259.9 km |
| Vallejo | 260.5 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.4
Santa Rosa
United States · 2026-08-05 22:21 UTC
88.1 km
M 4.5
San Francisco
United States · 2026-06-04 02:36 UTC
85.6 km
M 4.5
San Francisco
United States · 2026-06-03 13:11 UTC
87.8 km
M 5.1
San Francisco
United States · 2026-06-03 12:45 UTC
86.9 km
M 4.2
San Francisco
United States · 2026-01-19 00:20 UTC
90.4 km
M 4.1
Sacramento
United States · 2025-06-13 07:44 UTC
77.6 km
M 4.6
Redding
United States · 2025-05-26 08:17 UTC
62.1 km
M 4.1
Redding
United States · 2025-05-25 09:56 UTC
64.6 km
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