California earthquakes

M1.8 earthquake 10 km NW of Long Barn, California

A magnitude 1.8 earthquake struck 10 km NW of Long Barn, California on Mon, Jul 12, 1982, 7:28 PM PDT (02:28 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.9 3 km S of Topaz Lake, Nevada. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1982-07-13 02:28:15 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
38.164° N, 120.209° 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 0.6 km horizontally, 3.5 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
197°, poorly surrounded by stations
Stations used
11

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.02 km ESE of Mono City, California · 16143 days ago · 13 km deep · 96 km away
  2. 1.815 km SE of Yosemite Valley, California · 16136 days ago · 13 km deep · 88 km away
  3. 1.95 km WSW of Nipinnawasee, California · 16133 days ago · 4 km deep · 94 km away
  4. 1.64 km SW of Wawona, California · 16126 days ago · 11 km deep · 86 km away
  5. 2.17 km W of Mono City, California · 16121 days ago · 6 km deep · 87 km away
  6. 2.012 km S of Mariposa, California · 16116 days ago · 27 km deep · 90 km away
  7. 2.93 km S of Topaz Lake, Nevada · 16115 days ago · 7 km deep · 80 km away
  8. 2.31 km ESE of Mesa Vista, California · 16105 days ago · 9 km deep · 80 km away
  9. 2.4California-Nevada border region · 16096 days ago · 4 km deep · 81 km away
  10. 2.12 km SE of Topaz, California · 16092 days ago · 4 km deep · 79 km away
  11. 2.115 km SE of Yosemite Valley, California · 16091 days ago · 27 km deep · 88 km away

Before

  1. 1.922 km SE of Yosemite Valley, California · 16155 days ago · 20 km deep · 95 km away
  2. 2.018 km SE of Yosemite Valley, California · 16159 days ago · 5 km deep · 91 km away
  3. 1.611 km S of Yosemite Valley, California · 16159 days ago · 4 km deep · 81 km away
  4. 1.610 km ENE of Le Grand, California · 16165 days ago · 4 km deep · 99 km away
  5. 2.82 km NNW of Alpine Village, California · 16166 days ago · 5 km deep · 78 km away
  6. 1.82 km NW of Bear Valley, California · 16169 days ago · 9 km deep · 64 km away
  7. 2.38 km NE of Planada, California · 16171 days ago · 3 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1076173. Read Wed, Sep 30, 2026, 6:33 AM UTC.