QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

Earthquake near Port Hueneme, CA

No earthquake was likely felt in Port Hueneme in the 24 hours to 8:20 pm PST (04:20 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 2.7 earthquake was recorded 21 km (13 mi) south of Port Hueneme, CA, at 11:27 pm PDT on 10 June 2020 (06:27 UTC), 11 km deep. 6 people have reported feeling it to USGS.

USGS: 21km S of Port Hueneme, CA

73 km (45 mi) W of Los Angeles, CA · 26 km (16 mi) S of Oxnard, CA

11:27 pm PDT, Jun 10, 2020 · · 11 km deep · released about 320 lb of TNT

Every earthquake near Port Hueneme Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 45 kmLos Angeles County 90 kmSanta Barbara 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
11:27 pm PDT on 10 June 2020 ()
Where
21 km (13 mi) south of Port Hueneme, CA · earthquakes near Port Hueneme
Magnitude
M 2.7 (ml)
Depth
11 km below the surface
Felt
6 reports · strongest reported intensity III
Nearest
Ventura County, 45 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 2216 days ago

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 22 km (14 mi) from the epicentre. In Port Hueneme, 21 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.

How big was it?

This earthquake released about 320 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 48,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 34,000× the energy of this one
  3. Around the size people start to feel M 3.0 3× the energy of this one
  4. This earthquake M 2.7 about 320 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 110 times the energy of this one.

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 · 28 km W of this epicentre
  2. 5.5 11km NNW of Santa Barbara Is., CA · 46 km S of this epicentre
  3. 5.3 The 1973 Point Mugu, California Earthquake · 14 km E of this epicentre
  4. 5.2 9 km SW of Channel Islands Beach, California · 18 km NNW of this epicentre
  5. 5.2 13km S of Malibu Beach, CA · 47 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 33.9613, -119.1975. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 45 km (28 mi) N earthquakes near Ventura County
Los Angeles County, CA 90 km (56 mi) ENE earthquakes near Los Angeles County
Santa Barbara County, CA 100 km (62 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

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

  1. 2.1 6km SSW of Agoura Hills, CA
  2. 1.7 7km WSW of Malibu, CA
  3. 1.8 15km WNW of Malibu, CA
  4. 1.8 1km ESE of Malibu, CA
  5. 2.2 2km NE of Malibu, CA
  6. 1.9 3km SSE of Malibu, CA
  7. 1.8 6km NE of Malibu, CA
  8. 1.7 10km SSE of Ojai, CA
  9. 1.7 21km SE of Santa Cruz Is. (E end), CA
  10. 2.4 9km WSW of Malibu, CA
  11. 1.6 6km NE of Ventura, CA
  12. 1.7 2km S of Malibu, CA
  13. 1.7 9km ENE of Ventura, CA
  14. 1.5 6km WSW of Santa Paula, CA
  15. 2.1 6km WSW 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

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