QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

10 km SSE of Cabazon, CA

· 13 km deep · released about 8.7 lb of TNT

10 km30 km60 km120 km N Riverside County 70 kmSan Diego County 90 kmOrange County 97 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 1.6 (ml)
Depth
13 km below the surface
Felt
2 reports
Nearest
Riverside County, 70 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 255 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 8.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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 33.8312, -116.7458. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 70 km (43 mi) W of here earthquakes near Riverside County
San Diego County, CA 90 km (56 mi) N of here earthquakes near San Diego County
Orange County, CA 97 km (60 mi) E of here earthquakes near Orange County
San Bernardino County, CA 125 km (78 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

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

  1. 1.9 10 km E of Desert Hot Springs, CA
  2. 1.6 5 km N of Beaumont, CA
  3. 1.6 5 km SSE of Cabazon, CA
  4. 1.6 7 km SE of Valle Vista, CA
  5. 1.9 9 km S of Yucca Valley, CA
  6. 1.5 10 km SW of Idyllwild, CA
  7. 1.9 14 km S of Big Bear Lake, CA
  8. 2.2 5 km ENE of Anza, CA
  9. 1.6 5 km S of Idyllwild, CA
  10. 1.9 5 km SE of Loma Linda, CA
  11. 1.6 8 km SW of Anza, CA
  12. 1.8 7 km WSW of Anza, CA
  13. 1.9 10 km NW of Anza, CA
  14. 1.5 9 km N of Banning, CA
  15. 1.8 3 km 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.9 on 2020-04-04 — it released about 70,000 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.