California earthquakes

M2.6 earthquake 10km WNW of Coronado, CA

A magnitude 2.6 earthquake struck 10km WNW of Coronado, CA on Wed, Nov 28, 1973, 12:20 PM PST (20:20 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M3.5 29km SE of Campo, CA. This one was a foreshock.

Coronado 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
2.6 (mh), micro
Local time
UTC
1973-11-28 20:20:32 UTC
Depth
11.5 km (7.2 mi), shallow
Epicenter
32.704° N, 117.283° 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 2.7 km horizontally, 3.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
265°, poorly surrounded by stations
Stations used
4

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. 1.96km SSE of Palomar Observatory, CA · 19295 days ago · 8 km deep · 79 km away
  2. 2.43km SSE of Pine Valley, CA · 19290 days ago · 9 km deep · 72 km away
  3. 2.817km SSE of Tecate, B.C., MX · 19274 days ago · 14 km deep · 73 km away
  4. 2.022km SW of Ocotillo Wells, CA · 19270 days ago · 9 km deep · 100 km away
  5. 2.38km NE of Aguanga, CA · 19258 days ago · 17 km deep · 98 km away
  6. 3.529km SE of Campo, CA · 19256 days ago · 15 km deep · 99 km away
  7. 2.126km ENE of Pine Valley, CA · 19248 days ago · 16 km deep · 97 km away
  8. 2.561km WSW of Imperial Beach, CA · 19246 days ago · 8 km deep · 57 km away
  9. 2.02km SE of Temecula, CA · 19243 days ago · 6 km deep · 87 km away

Before

  1. 2.948km SE of San Clemente Is. (SE tip), CA · 19304 days ago · 6 km deep · 64 km away
  2. 3.243km W of El Sauzal, B.C., MX · 19313 days ago · 6 km deep · 93 km away
  3. 2.410km ENE of Pala, CA · 19317 days ago · 7 km deep · 81 km away
  4. 2.04km WNW of Palomar Observatory, CA · 19317 days ago · 11 km deep · 83 km away
  5. 2.410km WNW of Palomar Observatory, CA · 19317 days ago · 7 km deep · 81 km away
  6. 2.210km ENE of Aguanga, CA · 19322 days ago · 8 km deep · 100 km away
  7. 3.016km ESE of Julian, CA · 19323 days ago · 13 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3318721. Read Mon, Sep 28, 2026, 4:48 PM UTC.