QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

22km SE of Santa Cruz Is. (E end), CA

· 5.7 km deep · released about 8.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 55 kmSanta Barbara County 96 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
Magnitude
M 1.6 (ml)
Depth
5.7 km below the surface
Felt
no reports yet
Nearest
Ventura County, 55 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1880 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 8.4 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 1,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× 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 8.4 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 33.8920, -119.3422. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 55 km (34 mi) SSW of here earthquakes near Ventura County
Santa Barbara County, CA 96 km (60 mi) SE of here earthquakes near Santa Barbara County
Los Angeles County, CA 105 km (65 mi) WSW of here earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 2.0 15km S of Port Hueneme, CA
  2. 2.3 6km NW of Santa Cruz Is. (E end), CA
  3. 1.6 12km WNW of Malibu, CA
  4. 2.6 6km NNW of Santa Cruz Is. (E end), CA
  5. 1.7 12km WSW of Ventura, CA
  6. 1.8 25km SE of Santa Cruz Is. (E end), CA
  7. 2.4 24km NW of Santa Cruz Is. (E end), CA
  8. 2.0 16km S of Santa Cruz Is. (E end), CA
  9. 2.2 30km SE of Santa Cruz Is. (E end), CA
  10. 1.8 14km W of Malibu, CA
  11. 2.3 13km SE of Carpinteria, CA
  12. 2.0 15km SSE of Carpinteria, CA
  13. 1.7 13km SE of Carpinteria, CA
  14. 1.8 12km SE of Carpinteria, CA
  15. 2.3 22km SSE of Santa Cruz Is. (E end), 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.3 on 2018-04-05 — it released about 310,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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