QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

16km SSE of Santa Barbara, CA

· 0.2 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Barbara County 45 kmVentura County 48 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
Magnitude
M 1.7 (ml)
Depth
0.2 km below the surface
Felt
no reports yet
Nearest
Santa Barbara County, 45 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3421 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

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.

Where

Epicentre 34.2857, -119.6487. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Barbara County, CA 45 km (28 mi) SE of here earthquakes near Santa Barbara County
Ventura County, CA 48 km (30 mi) W of here earthquakes near Ventura County
Kern County, CA 145 km (90 mi) SW of here earthquakes near Kern 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. 2.3 5km SW of Port Hueneme, CA
  2. 1.7 10km ENE of Carpinteria, CA
  3. 2.1 12km WSW of Ojai, CA
  4. 2.4 12km WSW of Ojai, CA
  5. 2.6 12km WSW of Ojai, CA
  6. 1.5 9km NNE of Goleta, CA
  7. 2.1 2km N of Ojai, CA
  8. 2.3 23km NNW of Santa Cruz Is. (E end), CA
  9. 1.5 2km N of Ojai, CA
  10. 2.0 12km W of Isla Vista, CA
  11. 2.1 20km SSE of Carpinteria, CA
  12. 1.9 19km SSE of Carpinteria, CA
  13. 2.6 19km SSE of Carpinteria, CA
  14. 1.8 7km W of Isla Vista, CA
  15. 2.1 7km W of Isla Vista, 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.