California earthquakes

M3.4 earthquake 6km NW of Frazier Park, CA

A magnitude 3.4 earthquake struck 6km NW of Frazier Park, CA on Sat, Apr 3, 1948, 8:00 AM GMT-7 (15:00 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.4 18km WSW of Malibu, CA. 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
3.4 (ml), minor
Local time
UTC
1948-04-03 15:00:58 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
34.851° N, 118.996° 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 0.9 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
139°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 3.216km W of Malibu, CA · 28648 days ago · 6 km deep · 96 km away
  2. 3.418km WSW of Malibu, CA · 28648 days ago · 6 km deep · 98 km away
  3. 2.96km E of Bakersfield, CA · 28644 days ago · 6 km deep · 56 km away
  4. 2.911km S of Isla Vista, CA · 28630 days ago · 3 km deep · 99 km away
  5. 2.715km S of Tehachapi, CA · 28628 days ago · 6 km deep · 54 km away
  6. 2.63km E of Santa Clarita, CA · 28621 days ago · 6 km deep · 68 km away

Before

  1. 2.517km SSE of Carpinteria, CA · 28670 days ago · 0 km deep · 80 km away
  2. 3.222km NE of Maricopa, CA · 28672 days ago · 6 km deep · 42 km away
  3. 3.118km ENE of Taft, CA · 28675 days ago · 6 km deep · 47 km away
  4. 2.98km SW of Taft, CA · 28676 days ago · 6 km deep · 55 km away
  5. 2.820km S of Santa Barbara, CA · 28677 days ago · 6 km deep · 96 km away
  6. 2.56km ESE of Tehachapi, CA · 28681 days ago · 6 km deep · 62 km away
  7. 2.915km N of Goleta, CA · 28685 days ago · 6 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3357607. Read Tue, Sep 22, 2026, 7:45 PM UTC.