California earthquakes

M2.2 earthquake 1 km SSE of Sonora, California

A magnitude 2.2 earthquake struck 1 km SSE of Sonora, California on Mon, Jun 9, 1986, 3:26 PM PDT (22:26 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M2.3 9 km E of Buck Meadows, California. 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
2.2 (md), micro
Local time
UTC
1986-06-09 22:26:41 UTC
Depth
10.7 km (6.7 mi), shallow
Epicenter
37.971° N, 120.377° 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 0.7 km horizontally, 1.3 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
137°
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 7 in the 30 days before it.

After

  1. 2.223 km ESE of Yosemite Valley, California · 14714 days ago · 18 km deep · 98 km away
  2. 2.121 km ESE of Yosemite Valley, California · 14692 days ago · 19 km deep · 96 km away
  3. 2.39 km E of Buck Meadows, California · 14689 days ago · 30 km deep · 41 km away
  4. 1.65 km NE of Tracy, California · 14689 days ago · 13 km deep · 91 km away
  5. 2.1California-Nevada border region · 14685 days ago · -1 km deep · 90 km away
  6. 1.94 km E of Empire, California · 14680 days ago · 20 km deep · 56 km away
  7. 2.35 km W of Bridgeport, California · 14678 days ago · 10 km deep · 100 km away
  8. 2.114 km WNW of Westley, California · 14676 days ago · 0 km deep · 94 km away
  9. 1.912 km WSW of Coleville, California · 14671 days ago · 4 km deep · 89 km away

Before

  1. 3.327 km W of Mono City, California · 14715 days ago · 3 km deep · 81 km away
  2. 1.716 km S of Walker, California · 14720 days ago · 8 km deep · 88 km away
  3. 2.012 km WSW of Bridgeport, California · 14726 days ago · 10 km deep · 93 km away
  4. 2.412 km WSW of Bridgeport, California · 14726 days ago · 9 km deep · 93 km away
  5. 2.13 km W of Bootjack, California · 14727 days ago · -2 km deep · 69 km away
  6. 3.110 km E of Buck Meadows, California · 14743 days ago · 23 km deep · 41 km away
  7. 2.316 km SE of Yosemite Valley, California · 14743 days ago · 5 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc74463. Read Tue, Sep 22, 2026, 3:34 PM UTC.