QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Fillmore, CA

No earthquake was likely felt in Fillmore in the 24 hours to 4:08 am PST (12:08 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 1.7 earthquake was recorded 14 km (9 mi) northwest of Fillmore, CA, at 5:07 pm PST on 13 December 2025 (01:07 UTC), 8.0 km deep.

USGS: 14 km NW of Fillmore, CA

77 km (48 mi) NW of Los Angeles, CA · 29 km (18 mi) N of Camarillo, CA

5:07 pm PST, Dec 13, 2025 · · 8.0 km deep · released about 11 lb of TNT

Every earthquake near Fillmore Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 17 kmLos Angeles County 78 kmSanta Barbara County 92 kmKern County 100 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
5:07 pm PST on 13 December 2025 ()
Where
14 km (9 mi) northwest of Fillmore, CA · earthquakes near Fillmore
Magnitude
M 1.7 (ml)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Ventura County, 17 km SSW
Nearest mapped fault
San Cayetano fault, 7 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 332 days ago

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 10 km (6 mi) from the epicentre. In Fillmore, 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: Santa Paula, Ojai, Meiners Oaks, Piru, Mira Monte, Saticoy.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× the energy of this one
  4. This earthquake M 1.7 about 11 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 110,000 times the energy of this one.

Before 2016, the USGS record lists 14 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.0 Tejon Pass, California · 48 km NNE of this epicentre
  2. 5.6 7km NNE of Simi Valley, California · 35 km ESE of this epicentre
  3. 5.5 Southwest of Tejon Pass, California · 24 km N of this epicentre
  4. 5.5 10 km NE of Toro Canyon, California · 43 km W of this epicentre
  5. 5.2 9 km SW of Channel Islands Beach, California · 49 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 34.4840, -119.0340. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 17 km (10 mi) SSW earthquakes near Ventura County
Los Angeles County, CA 78 km (48 mi) ESE earthquakes near Los Angeles County
Santa Barbara County, CA 92 km (57 mi) W earthquakes near Santa Barbara County
Kern County, CA 100 km (62 mi) NNE earthquakes near Kern County
Orange County, CA 147 km (91 mi) SE earthquakes near Orange County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

56 earthquakes have been recorded within 50 km since this one.

  1. 1.9 10 km SSW of Valencia, CA
  2. 1.5 13 km NW of Fillmore, CA
  3. 2.0 10 km SSW of Valencia, CA
  4. 1.8 10 km SSW of Valencia, CA
  5. 1.8 10 km SSW of Valencia, CA
  6. 2.8 10 km SSW of Valencia, CA
  7. 2.5 10 km SSW of Valencia, CA
  8. 1.7 10 km SSW of Valencia, CA
  9. 2.2 10 km SSW of Valencia, CA
  10. 1.6 7 km SSW of Ojai, CA
  11. 1.6 8 km S of Ojai, CA
  12. 1.9 13 km NE of Carpinteria, CA
  13. 2.2 11 km NNW of Piru, CA
  14. 1.8 11 km S of Carpinteria, CA
  15. 1.8 6 km NW of Port Hueneme, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.