Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Malibu, CA
No earthquake was likely felt in Malibu in the 24 hours to 4:43 am PST (12:43 UTC). The last one was M 2.3, 8 km (5 mi) W, at 4:53 am PDT on 16 October 2026, estimated intensity II (weak) in town; 2 felt reports to USGS. Every earthquake near Malibu
This page: a magnitude 1.8 earthquake was recorded 14 km (9 mi) west-southwest of Malibu, CA, at 6:08 pm PDT on 27 June 2023 (01:08 UTC), 10 km deep.
USGS: 10km WSW of Malibu, CA
46 km (29 mi) W of Los Angeles, CA · 26 km (16 mi) S of Thousand Oaks, CA
- When
- 6:08 pm PDT on 27 June 2023 ()
- Where
- 14 km (9 mi) west-southwest of Malibu, CA · earthquakes near Malibu
- Magnitude
- M 1.8 (ml)
- Depth
- 10 km below the surface
- Felt
- no reports yet
- Nearest
- Ventura County, 49 km NNW
- Nearest mapped fault
- Dume fault, under 1 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 1233 days ago
Earthquake alerts for Malibu, CA
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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 9 km (6 mi) from the epicentre. In Malibu, 14 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: Westlake Village, Agoura Hills, Thousand Oaks, Agoura, Oak Park.
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 5.8 930,000× the energy of this one
- Magna, Utah 2020 M 5.7 660,000× the energy of this one
- Around the size people start to feel M 3.0 59× 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 4.2 on 2023-01-25 — about 3,600 times the energy of this one.
Before 2016, the USGS record lists 12 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 Northridge, California, earthquake · 44 km NE of this epicentre
- 5.6 7km NNE of Simi Valley, California · 45 km NNE of this epicentre
- 5.5 11km NNW of Santa Barbara Is., CA · 49 km SSW of this epicentre
- 5.3 2 km SSW of Santa Monica, California · 38 km E of this epicentre
- 5.3 The 1973 Point Mugu, California Earthquake · 13 km W 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 33.9623, -118.9088. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Ventura County, CA | 49 km (30 mi) | NNW | earthquakes near Ventura County |
| Los Angeles County, CA | 65 km (40 mi) | ENE | earthquakes near Los Angeles County |
| Orange County, CA | 109 km (68 mi) | ESE | earthquakes near Orange County |
| Santa Barbara County, CA | 122 km (76 mi) | WNW | earthquakes near Santa Barbara County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
16 earthquakes have been recorded within 50 km since this one.
- 1.7 6 km E of Moorpark, CA
- 2.3 32 km W of Rancho Palos Verdes, CA
- 1.7 14 km SSW of Thousand Oaks, CA
- 1.5 10 km W of Malibu, CA
- 2.7 27 km SSW of Port Hueneme, CA
- 1.6 6km NNE of Chatsworth, CA
- 2.0 18km W of Malibu, CA
- 1.5 1km SSW of Century City, CA
- 1.6 10km WSW of Ventura, CA
- 1.6 8km N of Chatsworth, CA
- 2.6 17km SE of Santa Cruz Is. (E end), CA
- 1.8 31km NE of Santa Barbara Is., CA
- 2.0 18km SSW of Malibu, CA
- 3.7 21km SSW of Malibu, CA
- 1.7 26km S of Malibu, 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.