QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Ojai, CA

No earthquake was likely felt in Ojai in the 24 hours to 3:21 am PST (11:21 UTC). The last one was M 1.5, 7 km (5 mi) S, at 2:56 am PST on 6 November 2026, estimated intensity II (weak) in town. Every earthquake near Ojai

This page: a magnitude 2.1 earthquake was recorded 22 km (13 mi) north of Ojai, CA, at 3:21 am PDT on 13 March 2019 (10:21 UTC), 8.9 km deep.

USGS: 22km N of Ojai, CA

41 km (26 mi) N of San Buenaventura (Ventura), CA · 105 km (65 mi) NW of Los Angeles, CA

3:21 am PDT, Mar 13, 2019 · · 8.9 km deep · released about 44 lb of TNT

10 km30 km60 km120 km N Ventura County 34 kmSanta Barbara County 71 kmKern County 93 kmLos Angeles County 105 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
3:21 am PDT on 13 March 2019 ()
Where
22 km (13 mi) north of Ojai, CA · earthquakes near Ojai
Magnitude
M 2.1 (ml)
Depth
8.9 km below the surface
Felt
no reports yet
Nearest
Ventura County, 34 km SSE
Nearest mapped fault
Santa Ynez fault, 14 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 2801 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 15 km (9 mi) from the epicentre. In Ojai, 22 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: Meiners Oaks, Mira Monte, Pine Mountain Club, Oak View.

How big was it?

This earthquake released about 44 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 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 14 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.5 The 1952 Kern County, California Earthquake · 43 km NE of this epicentre
  2. 6.0 Tejon Pass, California · 45 km NE of this epicentre
  3. 5.8 13km WNW of Grapevine, CA · 42 km NNE of this epicentre
  4. 5.5 Southwest of Tejon Pass, California · 26 km ENE of this epicentre
  5. 5.5 10 km NE of Toro Canyon, California · 26 km SW 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 34.6405, -119.2732. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 34 km (21 mi) SSE earthquakes near Ventura County
Santa Barbara County, CA 71 km (44 mi) W earthquakes near Santa Barbara County
Kern County, CA 93 km (58 mi) NNE earthquakes near Kern County
Los Angeles County, CA 105 km (65 mi) ESE earthquakes near Los Angeles County
San Luis Obispo County, CA 136 km (84 mi) NW earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 1.7 13km SW of Ojai, CA
  2. 1.5 9km W of Frazier Park, CA
  3. 1.7 18km SSW of Maricopa, CA
  4. 1.5 12km NNE of Ojai, CA
  5. 1.6 3km SW of Lebec, CA
  6. 2.1 11km N of Pine Mountain Club, CA
  7. 1.9 21km SSW of Frazier Park, CA
  8. 1.6 6km WSW of Ojai, CA
  9. 1.5 19km NE of Ojai, CA
  10. 1.6 7km N of Moorpark, CA
  11. 2.2 13km NNW of Fillmore, CA
  12. 1.7 9km SE of Santa Paula, CA
  13. 1.5 3km NW of Frazier Park, CA
  14. 2.0 12km NE of Pine Mountain Club, CA
  15. 1.6 15km N of Fillmore, 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.