QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Port Hueneme, CA

No earthquake was likely felt in Port Hueneme in the 24 hours to 7:49 am PST (15:49 UTC). The last one was M 3.8, 48 km (30 mi) NE, at 8:00 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 199 felt reports to USGS. Every earthquake near Port Hueneme

This page: a magnitude 1.7 earthquake was recorded 20 km (12 mi) south-southeast of Port Hueneme, CA, at 10:06 pm PST on 30 January 2022 (06:06 UTC), 9.8 km deep.

USGS: 20km SSE of Port Hueneme, CA

62 km (38 mi) W of Los Angeles, CA · 25 km (16 mi) SSE of Oxnard, CA

10:06 pm PST, Jan 30, 2022 · · 9.8 km deep · released about 12 lb of TNT

Every earthquake near Port Hueneme Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 41 kmLos Angeles County 79 kmSanta Barbara County 106 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
10:06 pm PST on 30 January 2022 ()
Where
20 km (12 mi) south-southeast of Port Hueneme, CA · earthquakes near Port Hueneme
Magnitude
M 1.7 (ml)
Depth
9.8 km below the surface
Felt
no reports yet
Nearest
Ventura County, 41 km N
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 1747 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 8 km (5 mi) from the epicentre. In Port Hueneme, 20 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, Oxnard, Camarillo, El Rio, Malibu, Thousand Oaks.

How big was it?

This earthquake released about 12 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 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 4.0 on 2020-01-02 — about 2,700 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.5 30 km SW of Channel Islands Beach, California · 39 km W of this epicentre
  2. 5.5 11km NNW of Santa Barbara Is., CA · 49 km S of this epicentre
  3. 5.3 The 1973 Point Mugu, California Earthquake · 4 km ESE of this epicentre
  4. 5.2 9 km SW of Channel Islands Beach, California · 23 km WNW of this epicentre
  5. 5.2 1 km SW of Las Flores, California · 41 km E 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 33.9965, -119.0823. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 41 km (25 mi) N earthquakes near Ventura County
Los Angeles County, CA 79 km (49 mi) ENE earthquakes near Los Angeles County
Santa Barbara County, CA 106 km (66 mi) NW earthquakes near Santa Barbara County

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

Aftershocks so far

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

  1. 1.5 9km ESE of Ojai, CA
  2. 1.6 5km WSW of Oxnard, CA
  3. 1.8 6km WSW of Malibu, CA
  4. 2.9 35km NW of Santa Barbara Is., CA
  5. 1.8 20km SSE of Port Hueneme, CA
  6. 1.7 8km WSW of Santa Paula, CA
  7. 2.2 7km NNE of Malibu, CA
  8. 1.7 4km SW of Santa Paula, CA
  9. 2.5 19km SSE of Port Hueneme, CA
  10. 2.0 19km SSE of Port Hueneme, CA
  11. 1.7 4km SE of Las Flores, CA
  12. 1.8 5km W of Malibu, CA
  13. 1.8 4km N of Topanga, CA
  14. 1.5 10km NNW of Santa Paula, CA
  15. 2.9 14km SSE 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

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