M1.6 earthquake 20 km E of Grenada, California
A magnitude 1.6 earthquake struck 20 km E of Grenada, California on Tue, Dec 24, 1985, 6:06 AM PST (14:06 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M2.8 19 km SW of Edgewood, California. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1985-12-24 14:06:01 UTC
- Depth
- 4.6 km (2.8 mi), shallow
- Epicenter
- 41.623° N, 122.276° W
- Region
- California
- 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.
- Location uncertainty
- About 2.7 km horizontally, 3.8 km in depth
- Magnitude uncertainty
- ±0.31
- Depth from
- From location
- Station coverage gap
- 230°, poorly surrounded by stations
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.819 km SW of Edgewood, California · 14878 days ago · 1 km deep · 42 km away
- 1.911 km NE of Mountain Gate, California · 14863 days ago · 17 km deep · 93 km away
- 1.68 km N of Cassel, California · 14845 days ago · 12 km deep · 93 km away
- 2.09 km W of Burney, California · 14834 days ago · 14 km deep · 92 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc63462. Read Wed, Sep 23, 2026, 2:36 AM UTC.