Earthquake · reviewed by a seismologist
M 3.6ml
Earthquake near Fillmore, CA
No earthquake was likely felt in Fillmore in the 24 hours to 12:38 pm PST (20:38 UTC). The last one was M 3.8, 14 km (9 mi) E, at 8:00 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 199 felt reports to USGS. Every earthquake near Fillmore
This page: a magnitude 3.6 earthquake was recorded 8 km (5 mi) west-northwest of Fillmore, CA, at 10:21 pm PST on 7 January 2022 (06:21 UTC), 1.8 km deep. 303 people have reported feeling it to USGS.
USGS: 8km WNW of Fillmore, CA
71 km (44 mi) NW of Los Angeles, CA · 24 km (15 mi) N of Camarillo, CA
- When
- 10:21 pm PST on 7 January 2022 ()
- Where
- 8 km (5 mi) west-northwest of Fillmore, CA · earthquakes near Fillmore
- Magnitude
- M 3.6 (ml)
- Depth
- 1.8 km below the surface
- Felt
- 303 reports · strongest reported intensity IV
- Measured shaking
- intensity IV (ShakeMap)
- Nearest
- Ventura County, 16 km WSW
- Nearest mapped fault
- San Cayetano 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 1580 days ago
Earthquake alerts for Fillmore, CA
Get a notification in this browser when USGS records an earthquake near Fillmore, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 67 km (42 mi) from the epicentre. In Fillmore, 8 km away, the estimate is intensity III (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: Santa Paula 11 km, intensity III · Piru 18 km, intensity III · Moorpark 20 km, intensity III · Ojai 23 km, intensity III · Camarillo 25 km, intensity III · Simi Valley 27 km, intensity III · Oxnard 32 km, intensity II · Thousand Oaks 33 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 3.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.6 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 51,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 2,300× the energy of this one
- Magna, Utah 2020 M 5.7 1,600× the energy of this one
- This earthquake M 3.6 about 3.3 tons of TNT
- Around the size people start to feel M 3.0 this one released 6.9× more
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 7.2 times the energy of this one.
Before 2016, the USGS record lists 15 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 Northridge, California, earthquake · 49 km ESE of this epicentre
- 5.9 1km ENE of Granada Hills, California · 49 km ESE of this epicentre
- 5.6 7km NNE of Simi Valley, California · 30 km ESE of this epicentre
- 5.5 Southwest of Tejon Pass, California · 29 km N of this epicentre
- 5.5 10 km NE of Toro Canyon, California · 47 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 34.4365, -118.9912. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Ventura County, CA | 16 km (10 mi) | WSW | earthquakes near Ventura County |
| Los Angeles County, CA | 72 km (45 mi) | ESE | earthquakes near Los Angeles County |
| Santa Barbara County, CA | 97 km (60 mi) | W | earthquakes near Santa Barbara County |
| Kern County, CA | 104 km (65 mi) | NNE | earthquakes near Kern County |
| Orange County, CA | 140 km (87 mi) | SE | earthquakes near Orange County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.6 4km SSE of Piru, CA
- 1.8 4km W of Ojai, CA
- 2.6 5km WSW of Ojai, CA
- 1.7 5km W of Ojai, CA
- 2.8 5km W of Ojai, CA
- 1.7 5km WSW of Ojai, CA
- 2.0 6km WSW of Ojai, CA
- 1.9 4km WNW of Ojai, CA
- 2.8 5km WSW of Ojai, CA
- 2.5 5km WSW of Ojai, CA
- 2.0 8km SE of Piru, CA
- 3.0 10km ESE of Ojai, CA
- 4.0 10km NW of Santa Paula, CA
- 1.6 17km WNW of Malibu, CA
- 2.1 10km NW of Santa Paula, 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.