QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Ventura, CA

No earthquake was likely felt in Ventura in the 24 hours to 10:12 am PST (18:12 UTC). The last one was M 3.8, 50 km (31 mi) ENE, at 8:00 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 199 felt reports to USGS. Every earthquake near Ventura

This page: a magnitude 2.1 earthquake was recorded 14 km (9 mi) west-southwest of Ventura, CA, at 4:47 pm PDT on 2 June 2018 (23:47 UTC), less than 1 km deep. 2 people have reported feeling it to USGS.

USGS: 20km WSW of Ventura, CA

96 km (60 mi) WNW of Los Angeles, CA · 17 km (11 mi) WSW of San Buenaventura (Ventura), CA

4:47 pm PDT, Jun 2, 2018 · · 0.6 km deep · released about 41 lb of TNT

Every earthquake near Ventura Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 31 kmSanta Barbara County 66 kmLos Angeles County 107 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
4:47 pm PDT on 2 June 2018 ()
Where
14 km (9 mi) west-southwest of Ventura, CA · earthquakes near Ventura
Magnitude
M 2.1 (ml)
Depth
0.6 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Ventura County, 31 km ENE
Nearest mapped fault
Oak Ridge fault (offshore), 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 3031 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 17 km (11 mi) from the epicentre. In Ventura, 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.

Likely felt in: Ventura 14 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 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 4.1 on 2016-03-12 — about 1,100 times the energy of this one.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.8 The 1925 Santa Barbara, California Earthquake · 35 km WNW of this epicentre
  2. 5.5 30 km SW of Channel Islands Beach, California · 25 km SSW of this epicentre
  3. 5.5 10 km NE of Toro Canyon, California · 32 km NNW of this epicentre
  4. 5.5 The 1941 Santa Barbara, California Earthquake · 18 km NW of this epicentre
  5. 5.3 The 1973 Point Mugu, California Earthquake · 44 km SE 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 34.2165, -119.4288. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 31 km (20 mi) ENE earthquakes near Ventura County
Santa Barbara County, CA 66 km (41 mi) WNW earthquakes near Santa Barbara County
Los Angeles County, CA 107 km (67 mi) E earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 1.7 9km SE of Santa Paula, CA
  2. 3.0 31km SE of Santa Cruz Is. (E end), CA
  3. 1.7 14km NE of Ojai, CA
  4. 2.3 15km NE of Ojai, CA
  5. 1.7 16km NE of Ojai, CA
  6. 2.2 15km S of Carpinteria, CA
  7. 2.0 11km WNW of Ojai, CA
  8. 1.6 18km S of Camarillo, CA
  9. 2.1 22km N of Ojai, CA
  10. 1.8 7km NE of Ventura, CA
  11. 2.4 18km S of Port Hueneme, CA
  12. 3.0 15km SSW of Carpinteria, CA
  13. 2.0 4km NE of Ojai, CA
  14. 2.6 18km W of Malibu, CA
  15. 1.6 12km WNW 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.