QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

10km WSW of Morongo Valley, CA

· 13 km deep · released about 29 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 70 kmSan Bernardino County 105 kmOrange County 108 kmSan Diego County 109 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 2.0 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Riverside County, 70 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2896 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 29 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 520,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 370,000× the energy of this one
  3. Around the size people start to feel M 3.0 33× the energy of this one
  4. This earthquake M 2.0 about 29 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 34.0035, -116.6812. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 70 km (43 mi) WNW of here earthquakes near Riverside County
San Bernardino County, CA 105 km (65 mi) SSW of here earthquakes near San Bernardino County
Orange County, CA 108 km (67 mi) ENE of here earthquakes near Orange County
San Diego County, CA 109 km (68 mi) N of here earthquakes near San Diego County

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

Aftershocks so far

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

  1. 1.6 5km NNW of Beaumont, CA
  2. 1.5 3km WNW of Cabazon, CA
  3. 1.7 8km SSW of Idyllwild, CA
  4. 2.1 5km ESE of Calimesa, CA
  5. 2.5 5km ESE of Calimesa, CA
  6. 2.1 5km ESE of Calimesa, CA
  7. 1.9 3km WNW of Cabazon, CA
  8. 2.1 3km WNW of Cabazon, CA
  9. 1.5 3km WNW of Cabazon, CA
  10. 2.1 3km WNW of Cabazon, CA
  11. 2.3 3km WNW of Cabazon, CA
  12. 2.0 4km ENE of Calimesa, CA
  13. 1.5 2km ESE of Calimesa, CA
  14. 2.4 5km SSW of Idyllwild, CA
  15. 1.5 7km S of Idyllwild, 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 5,600 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.