California earthquakes

M2.2 earthquake 21km SW of Lompoc, CA

A magnitude 2.2 earthquake struck 21km SW of Lompoc, CA on Thu, May 17, 1990, 2:12 AM PDT (09:12 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.5 6km SW of Santa Rosa 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
2.2 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1990-05-17 09:12:37 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
34.509° N, 120.628° 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
223°, 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: 19 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.280 km W of Vandenberg Air Force Base, CA · 13288 days ago · 10 km deep · 71 km away
  2. 2.880 km W of Vandenberg Air Force Base, California · 13286 days ago · 0 km deep · 73 km away
  3. 1.97 km NE of Edna, California · 13283 days ago · 6 km deep · 83 km away
  4. 3.326km S of Lompoc, CA · 13280 days ago · 0 km deep · 23 km away
  5. 1.79 km W of Morro Bay, California · 13273 days ago · 8 km deep · 98 km away
  6. 2.368 km SW of Avila Beach, California · 13271 days ago · 0 km deep · 69 km away
  7. 1.99km ESE of Lompoc, CA · 13269 days ago · 5 km deep · 27 km away
  8. 2.720km SSW of Carpinteria, CA · 13263 days ago · 5 km deep · 96 km away
  9. 2.374 km W of Vandenberg Air Force Base, California · 13261 days ago · 3 km deep · 66 km away
  10. 2.238 km W of Casmalia, California · 13261 days ago · 2 km deep · 42 km away
  11. 2.030 km W of Casmalia, California · 13260 days ago · 3 km deep · 41 km away
  12. 2.427km SW of Lompoc, CA · 13246 days ago · 6 km deep · 7 km away
  13. 2.236 km WSW of Avila Beach, California · 13245 days ago · 0 km deep · 70 km away
  14. 2.577 km SW of Avila Beach, California · 13234 days ago · 13 km deep · 75 km away
  15. 2.667 km SW of Avila Beach, California · 13233 days ago · 2 km deep · 73 km away
  16. 3.48km SW of Santa Rosa Is., CA · 13232 days ago · 5 km deep · 81 km away
  17. 2.511km SSW of Santa Rosa Is., CA · 13232 days ago · 6 km deep · 84 km away
  18. 3.56km SW of Santa Rosa Is., CA · 13232 days ago · 5 km deep · 81 km away
  19. 2.612km SSW of Santa Rosa Is., CA · 13230 days ago · 5 km deep · 85 km away

Before

  1. 3.06km WSW of Orcutt, CA · 13292 days ago · 6 km deep · 40 km away
  2. 1.79km ESE of Lompoc, CA · 13293 days ago · 7 km deep · 26 km away
  3. 2.88km ESE of Lompoc, CA · 13303 days ago · 5 km deep · 26 km away
  4. 3.08km ESE of Lompoc, CA · 13305 days ago · 8 km deep · 26 km away
  5. 2.516km WSW of Lompoc, CA · 13309 days ago · 5 km deep · 8 km away
  6. 2.29km E of Lompoc, CA · 13313 days ago · 0 km deep · 28 km away
  7. 2.016km WSW of Isla Vista, CA · 13319 days ago · 0 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci141796. Read Sun, Oct 4, 2026, 3:26 PM UTC.