M3.3 earthquake 26km S of Lompoc, CA
A magnitude 3.3 earthquake struck 26km S of Lompoc, CA on Sat, May 26, 1990, 12:28 AM PDT (07:28 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M3.5 6km SW of Santa Rosa Is., CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.3 (ML, local (Richter)), minor
- Magnitude from
- Southern California Seismic Network
- Local time
- UTC
- 1990-05-26 07:28:11 UTC
- Depth
- 0.2 km (0.1 mi), shallow
- Epicenter
- 34.406° N, 120.413° W
- Region
- California
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 3.3 | ML, local (Richter) | Southern California Seismic Network | Preferred · Final · 12 stations |
| 3.2 | ML, local (Richter) | USGS National Earthquake Information Center | Reviewed |
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
- From location
- Station coverage gap
- 177°
- 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: 17 in the 60 days after this one and 9 in the 30 days before it.
After
- 2.368 km SW of Avila Beach, California · 13270 days ago · 0 km deep · 92 km away
- 1.99km ESE of Lompoc, CA · 13269 days ago · 5 km deep · 23 km away
- 1.924km SW of Maricopa, CA · 13263 days ago · 1 km deep · 93 km away
- 2.720km SSW of Carpinteria, CA · 13262 days ago · 5 km deep · 74 km away
- 2.374 km W of Vandenberg Air Force Base, California · 13260 days ago · 3 km deep · 88 km away
- 2.238 km W of Casmalia, California · 13260 days ago · 2 km deep · 64 km away
- 2.030 km W of Casmalia, California · 13259 days ago · 3 km deep · 62 km away
- 2.427km SW of Lompoc, CA · 13245 days ago · 6 km deep · 28 km away
- 2.236 km WSW of Avila Beach, California · 13244 days ago · 0 km deep · 91 km away
- 2.577 km SW of Avila Beach, California · 13233 days ago · 13 km deep · 97 km away
- 2.667 km SW of Avila Beach, California · 13233 days ago · 2 km deep · 96 km away
- 3.48km SW of Santa Rosa Is., CA · 13232 days ago · 5 km deep · 62 km away
- 2.511km SSW of Santa Rosa Is., CA · 13232 days ago · 6 km deep · 65 km away
- 3.56km SW of Santa Rosa Is., CA · 13231 days ago · 5 km deep · 61 km away
- 2.612km SSW of Santa Rosa Is., CA · 13229 days ago · 5 km deep · 66 km away
- 1.532km SSW of Lompoc, CA · 13226 days ago · 6 km deep · 17 km away
- 1.919 km WSW of Guadalupe, California · 13224 days ago · 1 km deep · 65 km away
Before
- 1.97 km NE of Edna, California · 13282 days ago · 6 km deep · 95 km away
- 2.880 km W of Vandenberg Air Force Base, California · 13285 days ago · 0 km deep · 95 km away
- 2.280 km W of Vandenberg Air Force Base, CA · 13287 days ago · 10 km deep · 93 km away
- 2.221km SW of Lompoc, CA · 13289 days ago · 5 km deep · 23 km away
- 3.06km WSW of Orcutt, CA · 13292 days ago · 6 km deep · 50 km away
- 1.79km ESE of Lompoc, CA · 13292 days ago · 7 km deep · 22 km away
- 2.88km ESE of Lompoc, CA · 13302 days ago · 5 km deep · 23 km away
- 3.08km ESE of Lompoc, CA · 13304 days ago · 8 km deep · 23 km away
- 2.516km WSW of Lompoc, CA · 13309 days ago · 5 km deep · 27 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci1059151 (also filed as usp00049su). Read Sat, Oct 3, 2026, 11:37 PM UTC.