M1.8 earthquake 14 km S of Round Mountain, California
A magnitude 1.8 earthquake struck 14 km S of Round Mountain, California on Mon, Mar 29, 1982, 5:31 AM PST (13:31 UTC), 3 km (2 mi) below the surface.
A larger quake followed: M2.4 5 km NNW of Chester, California. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (md), micro
- Local time
- UTC
- 1982-03-29 13:31:57 UTC
- Depth
- 3.2 km (2.0 mi), shallow
- Epicenter
- 40.663° N, 121.959° 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 7.2 km horizontally, 30.6 km in depth
- Magnitude uncertainty
- ±0.31
- Depth from
- From location
- Station coverage gap
- 327°, 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: 50 in the 60 days after this one and 12 in the 30 days before it.
After
- 1.614 km NNE of Mineral, California · 16248 days ago · 0 km deep · 44 km away
- 1.615 km NNE of Mineral, California · 16248 days ago · 3 km deep · 43 km away
- 1.812 km NE of Mineral, California · 16245 days ago · 4 km deep · 45 km away
- 2.45 km NNW of Chester, California · 16244 days ago · 17 km deep · 69 km away
- 2.120 km S of Old Station, California · 16241 days ago · 12 km deep · 48 km away
- 2.617 km N of Big Bend, California · 16241 days ago · 3 km deep · 57 km away
- 2.520 km ESE of McCloud, California · 16241 days ago · 13 km deep · 61 km away
- 2.918 km N of Big Bend, California · 16241 days ago · 4 km deep · 58 km away
- 2.320 km NW of Paskenta, California · 16239 days ago · -1 km deep · 97 km away
- 1.717 km N of Big Bend, California · 16238 days ago · 3 km deep · 58 km away
- 2.014 km E of Mineral, California · 16238 days ago · 9 km deep · 58 km away
- 1.98 km SW of Paynes Creek, California · 16238 days ago · 3 km deep · 43 km away
- 2.63 km S of Burney, California · 16237 days ago · 6 km deep · 33 km away
- 2.64 km S of Burney, California · 16237 days ago · 3 km deep · 32 km away
- 2.83 km S of Burney, California · 16237 days ago · 3 km deep · 32 km away
- 1.712 km WNW of Chester, California · 16237 days ago · 4 km deep · 60 km away
- 1.610 km WNW of Chester, California · 16237 days ago · 1 km deep · 62 km away
- 3.418 km N of Big Bend, California · 16236 days ago · 8 km deep · 58 km away
- 3.319 km N of Big Bend, California · 16236 days ago · 9 km deep · 59 km away
- 1.914 km ESE of McCloud, California · 16235 days ago · 4 km deep · 59 km away
- 2.816 km N of Big Bend, California · 16234 days ago · 3 km deep · 56 km away
- 3.016 km N of Big Bend, California · 16234 days ago · 3 km deep · 57 km away
- 1.816 km NNE of Mineral, California · 16233 days ago · 1 km deep · 45 km away
- 1.812 km ESE of McCloud, California · 16232 days ago · 4 km deep · 59 km away
- 2.012 km N of Mineral, California · 16231 days ago · 19 km deep · 39 km away
- 1.811 km W of Chester, California · 16231 days ago · 4 km deep · 65 km away
- 1.913 km WNW of Round Mountain, California · 16230 days ago · 4 km deep · 23 km away
- 1.711 km ESE of Mineral, California · 16229 days ago · 6 km deep · 57 km away
- 1.516 km W of Montgomery Creek, California · 16229 days ago · 3 km deep · 26 km away
- 1.65 km NW of Old Station, California · 16228 days ago · 3 km deep · 42 km away
- 2.38 km WSW of Lake Almanor West, California · 16228 days ago · 2 km deep · 76 km away
- 2.15 km NNE of Bella Vista, California · 16227 days ago · 3 km deep · 20 km away
- 1.518 km W of Round Mountain, California · 16225 days ago · 3 km deep · 24 km away
- 1.99 km WNW of Chester, California · 16225 days ago · 2 km deep · 64 km away
- 1.631 km E of Old Station, California · 16225 days ago · 2 km deep · 76 km away
- 2.26 km WNW of Manton, California · 16225 days ago · 10 km deep · 24 km away
- 1.84 km W of Manton, California · 16223 days ago · 1 km deep · 25 km away
- 2.510 km E of Manton, California · 16223 days ago · 0 km deep · 30 km away
- 1.815 km E of Lakehead, California · 16222 days ago · 4 km deep · 35 km away
- 2.40 km WNW of Paynes Creek, California · 16221 days ago · 9 km deep · 36 km away
- 2.31 km ESE of East Shore, California · 16219 days ago · -1 km deep · 90 km away
- 1.716 km NW of Chester, California · 16213 days ago · 6 km deep · 58 km away
- 1.521 km NNW of Chester, California · 16213 days ago · 3 km deep · 55 km away
- 1.911 km SE of Mineral, California · 16211 days ago · 9 km deep · 58 km away
- 2.512 km ENE of Bend, California · 16210 days ago · 13 km deep · 40 km away
- 2.39 km NNW of Old Station, California · 16202 days ago · 8 km deep · 44 km away
- 1.511 km NW of Chester, California · 16202 days ago · 3 km deep · 62 km away
- 2.78 km NNW of Paskenta, California · 16197 days ago · 2 km deep · 96 km away
- 1.717 km NE of Mineral, California · 16191 days ago · 4 km deep · 49 km away
- 2.115 km NNE of Shingletown, California · 16189 days ago · 7 km deep · 14 km away
Before
- 1.915 km NNE of Mineral, California · 16250 days ago · 0 km deep · 45 km away
- 1.816 km NE of Mineral, California · 16250 days ago · 2 km deep · 45 km away
- 1.716 km NE of Mineral, California · 16250 days ago · 3 km deep · 46 km away
- 1.819 km W of Old Station, California · 16254 days ago · 2 km deep · 26 km away
- 2.17 km WSW of Lakehead, California · 16255 days ago · 3 km deep · 48 km away
- 1.67 km WNW of Chester, California · 16255 days ago · 3 km deep · 66 km away
- 2.541 km SE of Nubieber, California · 16255 days ago · 20 km deep · 92 km away
- 2.88 km WSW of Chester, California · 16256 days ago · 2 km deep · 68 km away
- 3.18 km W of Old Station, California · 16263 days ago · -1 km deep · 36 km away
- 1.7Northern California · 16270 days ago · 1 km deep · 43 km away
- 3.14 km SW of Canyondam, California · 16273 days ago · 3 km deep · 92 km away
- 1.915 km E of Carrick, California · 16275 days ago · 3 km deep · 92 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc1073337. Read Tue, Sep 22, 2026, 10:23 PM UTC.