QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

10km SSE of Cabazon, CA

· 13 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
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 1.7 (ml)
Depth
13 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Riverside County, 70 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1705 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 33.8320, -116.7455. 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

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

  1. 1.9 8km NNE of Banning, CA
  2. 2.5 19km WNW of Morongo Valley, CA
  3. 2.8 7km S of Redlands, CA
  4. 2.9 10km WNW of Garnet, CA
  5. 1.9 15km E of Desert Hot Springs, CA
  6. 1.7 8km NE of Banning, CA
  7. 2.4 4km NE of Cabazon, CA
  8. 1.7 10km NNE of Cabazon, CA
  9. 1.6 24km ESE of Anza, CA
  10. 1.8 4km SE of Redlands, CA
  11. 1.7 4km SE of Redlands, CA
  12. 1.8 4km SE of Redlands, CA
  13. 1.9 4km S of Idyllwild, CA
  14. 1.5 4km S of Idyllwild, CA
  15. 1.6 5km NE of Beaumont, 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 57,000 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.