QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

18km WNW of Grapevine, CA

· 8.8 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 49 kmVentura County 74 kmSanta Barbara County 102 kmLos Angeles County 120 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
8.8 km below the surface
Felt
no reports yet
Nearest
Kern County, 49 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1810 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 10 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 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 35.0257, -119.0943. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 49 km (30 mi) SW of here earthquakes near Kern County
Ventura County, CA 74 km (46 mi) N of here earthquakes near Ventura County
Santa Barbara County, CA 102 km (63 mi) ENE of here earthquakes near Santa Barbara County
Los Angeles County, CA 120 km (74 mi) NW of here earthquakes near Los Angeles County
Kings County, CA 133 km (83 mi) SSE of here earthquakes near Kings County

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

Aftershocks so far

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

  1. 1.7 4km SSW of Frazier Park, CA
  2. 1.6 20km NW of Grapevine, CA
  3. 1.7 15km WSW of Pine Mountain Club, CA
  4. 1.7 14km SW of Lamont, CA
  5. 2.1 18km NW of Grapevine, CA
  6. 1.7 18km NW of Grapevine, CA
  7. 2.5 15km SSE of Buttonwillow, CA
  8. 1.6 19km ENE of Maricopa, CA
  9. 2.3 3km SSE of Frazier Park, CA
  10. 2.4 13km NNW of Grapevine, CA
  11. 2.6 12km NNW of Grapevine, CA
  12. 2.8 12km NNW of Grapevine, CA
  13. 3.5 13km NNW of Grapevine, CA
  14. 1.6 25km SSW of Frazier Park, CA
  15. 1.8 19km E of Maricopa, 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.