California earthquakes

M1.6 earthquake 5 km N of McCloud, California

A magnitude 1.6 earthquake struck 5 km N of McCloud, California on Mon, Sep 28, 1981, 3:01 AM PDT (10:01 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.2 9 km NNE of Millville, California. This one was a foreshock.

McCloud forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1981-09-28 10:01:24 UTC
Depth
5.5 km (3.4 mi), shallow
Epicenter
41.309° N, 122.151° W
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 3.2 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
184°, 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: 9 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 2.126 km E of Tennant, California · 16437 days ago · -2 km deep · 54 km away
  2. 3.29 km NNE of Millville, California · 16426 days ago · 3 km deep · 76 km away
  3. 1.96 km S of Tennant, California · 16418 days ago · 3 km deep · 32 km away
  4. 2.26 km S of Tennant, California · 16415 days ago · -2 km deep · 32 km away
  5. 2.615 km ENE of Shingletown, California · 16398 days ago · 9 km deep · 93 km away
  6. 1.912 km NNW of Shingletown, California · 16396 days ago · 3 km deep · 81 km away
  7. 2.015 km SSW of Old Station, California · 16385 days ago · 5 km deep · 99 km away
  8. 1.6Northern California · 16385 days ago · 8 km deep · 96 km away
  9. 2.713 km SSE of Tennant, California · 16380 days ago · 3 km deep · 30 km away

Before

  1. 1.67 km NNW of McCloud, California · 16454 days ago · 6 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1068008. Read Wed, Sep 30, 2026, 7:44 AM UTC.