QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

10km NNE of Banning, CA

· 12 km deep · released about 49 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 85 kmOrange County 93 kmSan Diego County 110 kmSan Bernardino County 113 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 2.1 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Riverside County, 85 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1962 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 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 34.0100, -116.8535. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 85 km (53 mi) WNW of here earthquakes near Riverside County
Orange County, CA 93 km (58 mi) ENE of here earthquakes near Orange County
San Diego County, CA 110 km (68 mi) N of here earthquakes near San Diego County
San Bernardino County, CA 113 km (70 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

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

  1. 1.6 5km NNE of Running Springs, CA
  2. 2.4 5km NNE of Running Springs, CA
  3. 1.6 1km N of Loma Linda, CA
  4. 1.7 7km NNE of Running Springs, CA
  5. 2.0 7km N of Yucca Valley, CA
  6. 2.5 3km ENE of San Jacinto, CA
  7. 1.5 5km SSE of Banning, CA
  8. 2.0 5km N of Running Springs, CA
  9. 3.0 5km NNE of Running Springs, CA
  10. 1.7 10km S of Idyllwild, CA
  11. 1.6 7km SW of Morongo Valley, CA
  12. 1.6 4km NNW of Yucca Valley, CA
  13. 3.6 4km NNW of Yucca Valley, CA
  14. 2.3 5km S of Mentone, CA
  15. 1.5 3km NE of Grand Terrace, 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 4.5 on 2018-05-08 — it released about 3,300 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.