California earthquakes

M2.8 earthquake 18km S of Carpinteria, CA

A magnitude 2.8 earthquake struck 18km S of Carpinteria, CA on Thu, Nov 1, 1973, 2:43 PM PST (22:43 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.4 13km NW of Grapevine, CA. This one was a foreshock.

Carpinteria 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
2.8 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1973-11-01 22:43:59 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
34.242° N, 119.532° 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 3.6 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
177°
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: 13 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.77km WSW of Santa Clarita, CA · 19319 days ago · 6 km deep · 89 km away
  2. 2.72km N of Northridge, CA · 19317 days ago · 11 km deep · 92 km away
  3. 2.36km NNE of Chatsworth, CA · 19303 days ago · 6 km deep · 88 km away
  4. 3.024km S of Santa Rosa Is., CA · 19294 days ago · 6 km deep · 75 km away
  5. 2.420km W of Malibu, CA · 19289 days ago · 6 km deep · 56 km away
  6. 2.34km W of Santa Clarita, CA · 19287 days ago · 0 km deep · 92 km away
  7. 2.413km WNW of Malibu, CA · 19281 days ago · 6 km deep · 59 km away
  8. 2.34km W of Northridge, CA · 19278 days ago · 0 km deep · 88 km away
  9. 2.58km SSW of Santa Clarita, CA · 19277 days ago · 4 km deep · 93 km away
  10. 2.23km NW of Northridge, CA · 19276 days ago · 2 km deep · 90 km away
  11. 2.14km S of Valencia, CA · 19275 days ago · 7 km deep · 91 km away
  12. 3.413km NW of Grapevine, CA · 19270 days ago · 6 km deep · 100 km away
  13. 1.78km S of Santa Clarita, CA · 19270 days ago · 8 km deep · 94 km away

Before

  1. 1.74km NNW of Pacoima, CA · 19331 days ago · 10 km deep · 99 km away
  2. 1.73km ENE of Santa Clarita, CA · 19331 days ago · 13 km deep · 99 km away
  3. 2.29km WSW of Malibu, CA · 19336 days ago · 6 km deep · 66 km away
  4. 1.77km SW of Santa Clarita, CA · 19336 days ago · 6 km deep · 91 km away
  5. 1.77km SW of Santa Clarita, CA · 19336 days ago · 4 km deep · 90 km away
  6. 1.76km NNW of Pacoima, CA · 19343 days ago · 4 km deep · 99 km away
  7. 1.78km SSE of Santa Clarita, CA · 19346 days ago · 6 km deep · 99 km away
  8. 2.515km SSW of Santa Barbara, CA · 19347 days ago · 5 km deep · 21 km away
  9. 2.48km NW of Malibu, CA · 19351 days ago · 1 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3318986. Read Sun, Oct 4, 2026, 6:26 PM UTC.