California earthquakes

M2.6 earthquake 29km SW of Lompoc, CA

A magnitude 2.6 earthquake struck 29km SW of Lompoc, CA on Thu, Aug 16, 1984, 11:40 AM PDT (18:40 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.5 39km NW of San Miguel Is., CA. This one was a foreshock.

Lompoc 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 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1984-08-16 18:40:16 UTC
Depth
4.9 km (3.1 mi), shallow
Epicenter
34.492° N, 120.720° 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.

Depth from
Operator assigned
Station coverage gap
278°, poorly surrounded by stations
Stations used
0

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 10 in the 30 days before it.

After

  1. 2.210km SW of Los Alamos, CA · 15379 days ago · 5 km deep · 40 km away
  2. 2.822km SW of Santa Rosa Is., CA · 15377 days ago · 5 km deep · 85 km away
  3. 2.519 km W of Guadalupe, California · 15374 days ago · 0 km deep · 50 km away
  4. 2.46km SSW of Santa Barbara, CA · 15366 days ago · 5 km deep · 93 km away
  5. 2.07km E of Santa Ynez, CA · 15355 days ago · 15 km deep · 67 km away
  6. 3.512km ENE of Santa Ynez, CA · 15355 days ago · 0 km deep · 71 km away
  7. 2.312km NE of Santa Ynez, CA · 15354 days ago · -1 km deep · 71 km away
  8. 1.99 km W of Morro Bay, California · 15344 days ago · 0 km deep · 99 km away
  9. 1.910 km W of Morro Bay, California · 15344 days ago · 0 km deep · 98 km away
  10. 1.94km N of Pismo Beach, CA · 15339 days ago · 3 km deep · 76 km away
  11. 2.414km NNW of Santa Cruz Is. (NW end), CA · 15339 days ago · 9 km deep · 76 km away
  12. 3.539km NW of San Miguel Is., CA · 15338 days ago · 5 km deep · 28 km away
  13. 2.113km ENE of Santa Ynez, CA · 15337 days ago · -1 km deep · 72 km away

Before

  1. 2.47km SW of Santa Barbara, CA · 15397 days ago · 3 km deep · 89 km away
  2. 2.227 km W of Guadalupe, California · 15398 days ago · 2 km deep · 52 km away
  3. 2.15km ESE of Goleta, CA · 15399 days ago · 1 km deep · 87 km away
  4. 2.55km ESE of Goleta, CA · 15399 days ago · 1 km deep · 86 km away
  5. 2.24 km ENE of Avila Beach, California · 15400 days ago · 2 km deep · 79 km away
  6. 2.17km SSW of Montecito, CA · 15404 days ago · 5 km deep · 99 km away
  7. 2.012km NE of Santa Ynez, CA · 15404 days ago · -1 km deep · 71 km away
  8. 1.818 km W of Guadalupe, California · 15408 days ago · 6 km deep · 51 km away
  9. 3.03km SE of Orcutt, CA · 15413 days ago · 5 km deep · 48 km away
  10. 2.64km S of Santa Ynez, CA · 15418 days ago · 13 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci48917. Read Sun, Oct 4, 2026, 6:31 PM UTC.