Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Oxnard, CA
No earthquake was likely felt in Oxnard in the 24 hours to 6:00 am PST (14:00 UTC). The last one was M 3.8, 44 km (27 mi) ENE, at 8:00 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 199 felt reports to USGS. Every earthquake near Oxnard
This page: a magnitude 1.8 earthquake was recorded 6 km (4 mi) west-northwest of Oxnard, CA, at 4:10 am PDT on 24 June 2020 (11:10 UTC), 16 km deep.
USGS: 6 km WNW of Oxnard, CA
in Oxnard, CA · 79 km (49 mi) WNW of Los Angeles, CA
- When
- 4:10 am PDT on 24 June 2020 ()
- Where
- 6 km (4 mi) west-northwest of Oxnard, CA · earthquakes near Oxnard
- Magnitude
- M 1.8 (ml)
- Depth
- 16 km below the surface
- Felt
- no reports yet
- Nearest
- Ventura County, 19 km NNE
- Nearest mapped fault
- Oak Ridge fault, 4 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 1154 days ago
Earthquake alerts for Oxnard, CA
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This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Oxnard, 6 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.
Earthquakes near other towns within 30 km: Channel Islands Beach, El Rio, Ventura, Port Hueneme, Saticoy, Camarillo.
How big was it?
This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 790,000× the energy of this one
- Around the size people start to feel M 3.0 70× the energy of this one
- This earthquake M 1.8 about 14 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 3,500 times the energy of this one.
Before 2016, the USGS record lists 9 earthquakes of M5 or more within 50 km; the five largest:
- 5.5 30 km SW of Channel Islands Beach, California · 34 km SW of this epicentre
- 5.5 10 km NE of Toro Canyon, California · 40 km NW of this epicentre
- 5.5 The 1941 Santa Barbara, California Earthquake · 32 km WNW of this epicentre
- 5.3 The 1973 Point Mugu, California Earthquake · 32 km SSE of this epicentre
- 5.2 9 km SW of Channel Islands Beach, California · 14 km SSW 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 34.2172, -119.2392. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Ventura County, CA | 19 km (12 mi) | NNE | earthquakes near Ventura County |
| Santa Barbara County, CA | 81 km (51 mi) | WNW | earthquakes near Santa Barbara County |
| Los Angeles County, CA | 90 km (56 mi) | E | earthquakes near Los Angeles County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
57 earthquakes have been recorded within 50 km since this one.
- 1.8 5km W of Ojai, CA
- 1.9 5km WSW of Santa Paula, CA
- 1.9 5km WSW of Santa Paula, CA
- 1.9 6km WSW of Santa Paula, CA
- 2.1 6km WSW of Santa Paula, CA
- 1.8 4km WSW of Ojai, CA
- 1.9 8km NNW of Ventura, CA
- 1.5 16km WNW of Malibu, CA
- 2.5 18km SSE of Santa Cruz Is. (E end), CA
- 1.6 17km S of Carpinteria, CA
- 1.7 17km SSE of Carpinteria, CA
- 1.9 1km S of Malibu, CA
- 1.6 10km SE of Port Hueneme, CA
- 1.6 7km W of Ojai, CA
- 2.2 3km NNE of Camarillo, 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.