QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

8km W of Grapevine, CA

· 7.0 km deep · released about 310 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 53 kmVentura County 65 kmSanta Barbara County 103 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
Magnitude
M 2.7 (ml)
Depth
7.0 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
Kern County, 53 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3705 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 310 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 50,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 35,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.1× the energy of this one
  4. This earthquake M 2.7 about 310 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 34.9318, -119.0170. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 53 km (33 mi) SSW of here earthquakes near Kern County
Ventura County, CA 65 km (40 mi) N of here earthquakes near Ventura County
Santa Barbara County, CA 103 km (64 mi) ENE of here earthquakes near Santa Barbara County
Los Angeles County, CA 107 km (67 mi) NW 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

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

  1. 1.6 14km N of Castaic, CA
  2. 1.5 15km N of Fillmore, CA
  3. 1.9 18km NNW of Grapevine, CA
  4. 1.7 10km NE of Grapevine, CA
  5. 1.7 17km S of Maricopa, CA
  6. 1.5 16km S of Maricopa, CA
  7. 1.9 19km NNE of Ojai, CA
  8. 2.0 17km NNW of Grapevine, CA
  9. 1.6 3km N of Frazier Park, CA
  10. 1.6 10km NW of Grapevine, CA
  11. 1.6 5km S of Maricopa, CA
  12. 1.5 13km NE of Arvin, CA
  13. 1.6 9km NE of Pine Mountain Club, CA
  14. 2.4 2km SE of Frazier Park, CA
  15. 2.1 1km SE of Frazier Park, 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 4.1 on 2016-03-12 — it released about 150 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.