QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Port Hueneme, CA

No earthquake was likely felt in Port Hueneme in the 24 hours to 9:21 am PST (17:21 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 1.6 earthquake was recorded 18 km (11 mi) south-southeast of Port Hueneme, CA, at 12:18 pm PST on 22 November 2019 (20:18 UTC), 11 km deep.

USGS: 18km SSE of Port Hueneme, CA

64 km (40 mi) W of Los Angeles, CA · 23 km (14 mi) SSE of Oxnard, CA

12:18 pm PST, Nov 22, 2019 · · 11 km deep · released about 8.7 lb of TNT

Every earthquake near Port Hueneme Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 39 kmLos Angeles County 81 kmSanta Barbara County 104 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
12:18 pm PST on 22 November 2019 ()
Where
18 km (11 mi) south-southeast of Port Hueneme, CA · earthquakes near Port Hueneme
Magnitude
M 1.6 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Ventura County, 39 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 2548 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 5 km (3 mi) from the epicentre. In Port Hueneme, 18 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.

How big was it?

This earthquake released about 8.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.5 30 km SW of Channel Islands Beach, California · 36 km W of this epicentre
  2. 5.3 The 1973 Point Mugu, California Earthquake · 6 km ESE of this epicentre
  3. 5.2 9 km SW of Channel Islands Beach, California · 21 km WNW of this epicentre
  4. 5.2 1 km SW of Las Flores, California · 43 km E of this epicentre
  5. 5.2 13km S of Malibu Beach, CA · 40 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 34.0075, -119.1063. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 39 km (24 mi) N earthquakes near Ventura County
Los Angeles County, CA 81 km (50 mi) ENE earthquakes near Los Angeles County
Santa Barbara County, CA 104 km (65 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

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

  1. 2.4 4km ENE of Port Hueneme, CA
  2. 2.2 30km SE of Santa Cruz Is. (E end), CA
  3. 1.8 18km S of Camarillo, CA
  4. 1.6 22km SE of Santa Cruz Is. (E end), CA
  5. 1.6 14km WNW of Malibu, CA
  6. 1.7 6km WNW of Oxnard, CA
  7. 2.0 6 km S of Ventura, CA
  8. 1.8 6 km WNW of Oxnard, CA
  9. 2.5 21km SE of Santa Cruz Is. (E end), CA
  10. 2.4 22km SE of Santa Cruz Is. (E end), CA
  11. 2.5 21km SE of Santa Cruz Is. (E end), CA
  12. 2.6 21km SE of Santa Cruz Is. (E end), CA
  13. 1.7 19km NNE of Santa Cruz Is. (E end), CA
  14. 2.7 21km S of Port Hueneme, CA
  15. 1.9 6km W 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.