QuakeIndex

Earthquake · automatic estimate, may change

M 2.1ml

2km S of Lake Elsinore, CA

· 5.3 km deep · released about 47 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orange County 42 kmSan Diego County 87 kmLos Angeles County 105 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
5.3 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
Orange County, 42 km W
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 1511 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 47 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 5.8 320,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 20× the energy of this one
  4. This earthquake M 2.1 about 47 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 33.6547, -117.3285. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orange County, CA 42 km (26 mi) E of here earthquakes near Orange County
San Diego County, CA 87 km (54 mi) NW of here earthquakes near San Diego County
Los Angeles County, CA 105 km (65 mi) SE of here earthquakes near Los Angeles 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. 1.7 1km SW of Calimesa, CA
  2. 1.6 9km SE of Valle Vista, CA
  3. 1.6 7km NW of Aguanga, CA
  4. 1.7 5km NNE of Pala, CA
  5. 1.6 3km NNW of Mira Loma, CA
  6. 1.8 6km N of Beaumont, CA
  7. 1.6 13km WNW of Anza, CA
  8. 1.6 5 km SE of Home Gardens, CA
  9. 1.9 3km NE of San Jacinto, CA
  10. 1.7 4km NNW of Glen Avon, CA
  11. 1.7 6km SSE of Mentone, CA
  12. 1.6 3km SE of Home Gardens, CA
  13. 1.6 8km NW of San Jacinto, CA
  14. 1.8 2km NNE of Loma Linda, CA
  15. 1.7 5km N of Moreno Valley, 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.