California earthquakes

M2.7 earthquake 19km SSE of Ocotillo, CA

A magnitude 2.7 earthquake struck 19km SSE of Ocotillo, CA on Thu, Mar 8, 1973, 11:18 PM PST (07:18 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M3.6 59km E of Maneadero, B.C., MX. 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
2.7 (mh), micro
Local time
UTC
1973-03-09 07:18:59 UTC
Depth
16.8 km (10.4 mi), shallow
Epicenter
32.586° N, 115.897° 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 3.4 km horizontally, 4.4 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
217°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.912km SE of Puebla, B.C., MX · 19557 days ago · 6 km deep · 59 km away
  2. 3.321km WSW of Westmorland, CA · 19555 days ago · 6 km deep · 45 km away
  3. 2.86km SW of Salton City, CA · 19552 days ago · 6 km deep · 76 km away
  4. 3.220km ESE of Julian, CA · 19548 days ago · 6 km deep · 66 km away
  5. 3.212km NNW of Delta, B.C., MX · 19543 days ago · 6 km deep · 64 km away
  6. 2.519km SSE of Ocotillo, CA · 19535 days ago · 13 km deep · 1 km away
  7. 2.47km ESE of Imperial, CA · 19532 days ago · 6 km deep · 46 km away
  8. 2.112km ESE of Ocotillo, CA · 19528 days ago · 6 km deep · 11 km away
  9. 2.68km E of Borrego Springs, CA · 19525 days ago · 6 km deep · 83 km away
  10. 2.864km E of Maneadero, B.C., MX · 19514 days ago · 6 km deep · 97 km away
  11. 3.659km E of Maneadero, B.C., MX · 19512 days ago · 6 km deep · 97 km away
  12. 2.816km N of Borrego Springs, CA · 19512 days ago · 6 km deep · 100 km away
  13. 2.613km E of Borrego Springs, CA · 19510 days ago · 6 km deep · 79 km away
  14. 2.722km SW of Progreso, B.C., MX · 19506 days ago · 8 km deep · 18 km away
  15. 2.313km E of Borrego Springs, CA · 19505 days ago · 6 km deep · 79 km away
  16. 2.810km NE of Julian, CA · 19505 days ago · 6 km deep · 84 km away

Before

  1. 2.826km WSW of Westmorland, CA · 19564 days ago · 6 km deep · 41 km away
  2. 3.216km SW of Ocotillo Wells, CA · 19565 days ago · 6 km deep · 59 km away
  3. 2.710km NW of Delta, B.C., MX · 19565 days ago · 6 km deep · 62 km away
  4. 3.550km ENE of Maneadero, B.C., MX · 19565 days ago · 6 km deep · 88 km away
  5. 3.77km ENE of Ocotillo, CA · 19580 days ago · 6 km deep · 19 km away
  6. 2.314km SE of Ocotillo, CA · 19585 days ago · 6 km deep · 6 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3320113. Read Wed, Sep 30, 2026, 3:59 PM UTC.