Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Frazier Park, CA
No earthquake was likely felt in Frazier Park in the 24 hours to 3:19 am PST (11:19 UTC). The last one was M 3.8, 51 km (31 mi) SSE, at 8:00 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 199 felt reports to USGS. Every earthquake near Frazier Park
This page: a magnitude 1.9 earthquake was recorded 3 km (2 mi) north-northwest of Frazier Park, CA, at 9:07 am PDT on 11 March 2018 (16:07 UTC), 13 km deep.
USGS: 3km NNW of Frazier Park, CA
57 km (35 mi) S of Bakersfield, CA · 105 km (65 mi) NNW of Los Angeles, CA
- When
- 9:07 am PDT on 11 March 2018 ()
- Where
- 3 km (2 mi) north-northwest of Frazier Park, CA · earthquakes near Frazier Park
- Magnitude
- M 1.9 (ml)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- Ventura County, 56 km SSW
- Nearest mapped fault
- San Andreas fault, 3 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3030 days ago
Earthquake alerts for Frazier Park, CA
Get a notification in this browser when USGS records an earthquake near Frazier Park, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 5 km (3 mi) from the epicentre. In Frazier Park, 3 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Likely felt in: Frazier Park 3 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
- Magna, Utah 2020 M 5.7 600,000× the energy of this one
- Around the size people start to feel M 3.0 53× the energy of this one
- This earthquake M 1.9 about 18 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 4.1 on 2016-03-12 — about 2,600 times the energy of this one.
Before 2016, the USGS record lists 18 earthquakes of M5 or more within 50 km; the five largest:
- 7.5 The 1952 Kern County, California Earthquake · 13 km NNW of this epicentre
- 6.0 Tejon Pass, California · 8 km NE of this epicentre
- 5.8 13km WNW of Grapevine, CA · 17 km NNW of this epicentre
- 5.5 Southwest of Tejon Pass, California · 17 km SSW of this epicentre
- 5.5 13km ENE of Grapevine, CA · 22 km NE of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 34.8458, -118.9628. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Ventura County, CA | 56 km (35 mi) | SSW | earthquakes near Ventura County |
| Kern County, CA | 60 km (37 mi) | NNE | earthquakes near Kern County |
| Los Angeles County, CA | 97 km (60 mi) | SE | earthquakes near Los Angeles County |
| Santa Barbara County, CA | 104 km (65 mi) | WSW | earthquakes near Santa Barbara County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
51 earthquakes have been recorded within 50 km since this one.
- 3.0 5km WNW of Arvin, CA
- 1.7 6km WNW of Castaic, CA
- 2.1 18km NNW of Neenach, CA
- 1.6 10km E of Taft, CA
- 1.8 21km SSW of Frazier Park, CA
- 2.1 16km N of Santa Paula, CA
- 1.5 16km N of Santa Paula, CA
- 1.6 16km ENE of Ojai, CA
- 1.6 14km NE of Ojai, CA
- 1.6 9km W of Tehachapi, CA
- 1.5 16km NW of Fillmore, CA
- 1.8 13km S of Tehachapi, CA
- 2.4 16km N of Pine Mountain Club, CA
- 1.9 9km WSW of Arvin, CA
- 2.1 21km E of Maricopa, CA
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.