QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

4km ESE of Delano, CA

· 19 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 62 kmTulare County 65 kmKings County 66 kmFresno County 119 kmSan Luis Obispo 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 1.9 (ml)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Kern County, 62 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3478 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× the energy of this one
  4. This earthquake M 1.9 about 21 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 35.7510, -119.2045. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 62 km (39 mi) NW of here earthquakes near Kern County
Tulare County, CA 65 km (41 mi) SW of here earthquakes near Tulare County
Kings County, CA 66 km (41 mi) ESE of here earthquakes near Kings County
Fresno County, CA 119 km (74 mi) SSE of here earthquakes near Fresno County
San Luis Obispo County, CA 120 km (74 mi) ENE of here earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 1.6 6km WSW of Shafter, CA
  2. 1.7 14km ENE of McFarland, CA
  3. 1.7 3km ENE of Buttonwillow, CA
  4. 2.3 12km SE of Alpaugh, CA
  5. 1.6 11km ENE of Oildale, CA
  6. 1.5 23km NE of Oildale, CA
  7. 1.8 7km NW of Rosedale, CA
  8. 1.8 25km WSW of Alpaugh, CA
  9. 1.6 15km E of Oildale, CA
  10. 2.1 6km N of Rosedale, CA
  11. 1.9 7km WSW of Shafter, CA
  12. 1.7 10km WNW of Pixley, CA
  13. 1.8 8km NNE of Porterville, CA
  14. 1.7 7km SW of Shafter, CA
  15. 2.4 6km WNW of McFarland, 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 4.9 on 2016-02-24 — it released about 30,000 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.