Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Ojai, CA
No earthquake was likely felt in Ojai in the 24 hours to 10:41 am PST (18:41 UTC). The last one was M 1.5, 7 km (5 mi) S, at 2:56 am PST on 6 November 2026, estimated intensity II (weak) in town. Every earthquake near Ojai
This page: a magnitude 1.8 earthquake was recorded 3 km (2 mi) northeast of Ojai, CA, at 3:50 pm PDT on 5 August 2024 (22:50 UTC), 11 km deep.
USGS: 3 km NE of Ojai, CA
90 km (56 mi) NW of Los Angeles, CA · 22 km (14 mi) N of San Buenaventura (Ventura), CA
- When
- 3:50 pm PDT on 5 August 2024 ()
- Where
- 3 km (2 mi) northeast of Ojai, CA · earthquakes near Ojai
- Magnitude
- M 1.8 (ml)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- Ventura County, 15 km SSE
- Nearest mapped fault
- Mission Ridge fault system, 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 729 days ago
Earthquake alerts for Ojai, CA
Get a notification in this browser when USGS records an earthquake near Ojai, 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 8 km (5 mi) from the epicentre. In Ojai, 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: Ojai 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 16 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 5.8 970,000× the energy of this one
- Magna, Utah 2020 M 5.7 680,000× the energy of this one
- Around the size people start to feel M 3.0 61× the energy of this one
- This earthquake M 1.8 about 16 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 5.1 on 2023-08-20 — about 80,000 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 Southwest of Tejon Pass, California · 33 km NE of this epicentre
- 5.5 10 km NE of Toro Canyon, California · 26 km W of this epicentre
- 5.5 The 1941 Santa Barbara, California Earthquake · 35 km WSW of this epicentre
- 5.2 9 km SW of Channel Islands Beach, California · 42 km S of this epicentre
- 5.2 10km ESE of Piru, California · 49 km ESE 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 34.4682, -119.2203. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Ventura County, CA | 15 km (9 mi) | SSE | earthquakes near Ventura County |
| Santa Barbara County, CA | 75 km (47 mi) | W | earthquakes near Santa Barbara County |
| Los Angeles County, CA | 93 km (58 mi) | ESE | earthquakes near Los Angeles County |
| Kern County, CA | 107 km (67 mi) | NNE | earthquakes near Kern County |
| San Luis Obispo County, CA | 152 km (94 mi) | NW | earthquakes near San Luis Obispo County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
13 earthquakes have been recorded within 50 km since this one.
- 1.6 12 km N of Piru, CA
- 1.6 6 km SE of Ojai, CA
- 1.6 12 km N of Santa Paula, CA
- 1.7 16 km NE of Ojai, CA
- 2.0 10 km N of Santa Paula, CA
- 2.5 4 km E of Camarillo, CA
- 1.5 7 km SSW of Frazier Park, CA
- 2.0 14 km SW of Ojai, CA
- 1.9 21 km NNE of Santa Cruz Is. (E end), CA
- 1.9 20 km NNE of Santa Cruz Is. (E end), CA
- 1.6 8 km ESE of Ojai, CA
- 2.0 8 km ESE of Ojai, CA
- 1.9 6 km SE of Ojai, 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.