QuakeIndex

Earthquake · reviewed by a seismologist

M 4.4mw

4km NNW of Banning, CA

· 17 km deep · released about 58 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 86 kmOrange County 88 kmSan Diego County 104 kmSan Bernardino County 119 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 4.4 (mw)
Depth
17 km below the surface
Felt
6921 reports · strongest reported intensity VI
Measured shaking
intensity VI (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Riverside County, 86 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1210 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 6921 people have reported feeling it to USGS.

How big was it?

This earthquake released about 58 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 2,900× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 130× the energy of this one
  3. Magna, Utah 2020 M 5.7 92× the energy of this one
  4. This earthquake M 4.4 about 58 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 120× more

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 33.9585, -116.8883. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 86 km (53 mi) WNW of here earthquakes near Riverside County
Orange County, CA 88 km (55 mi) ENE of here earthquakes near Orange County
San Diego County, CA 104 km (65 mi) N of here earthquakes near San Diego County
San Bernardino County, CA 119 km (74 mi) SSW of here earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 2.3 2km E of Nuevo, CA
  2. 1.5 5km NNW of Big Bear City, CA
  3. 1.8 5km NNW of Big Bear City, CA
  4. 1.8 5km NNW of Big Bear City, CA
  5. 2.6 5km NNW of Big Bear City, CA
  6. 2.1 5km NNW of Big Bear City, CA
  7. 2.1 5km NNW of Big Bear City, CA
  8. 1.6 5km NNW of Big Bear City, CA
  9. 2.2 5km NNW of Big Bear City, CA
  10. 3.9 5km NNW of Big Bear City, CA
  11. 2.4 5km NNW of Big Bear City, CA
  12. 1.8 10km SW of Idyllwild, CA
  13. 3.4 10km NNE of Nuevo, CA
  14. 2.2 5km SE of Loma Linda, CA
  15. 1.9 5km SE of Loma Linda, 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.