Earthquake · reviewed by a seismologist
M 2.3ml
6km SE of Valle Vista, CA
- When
- Magnitude
- M 2.3 (ml)
- Depth
- 16 km below the surface
- Felt
- 4 reports · strongest reported intensity III
- Nearest
- San Diego County, 77 km S
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2350 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.
How big was it?
This earthquake released about 98 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
- Magna, Utah 2020 M 5.7 110,000× the energy of this one
- Around the size people start to feel M 3.0 9.8× the energy of this one
- This earthquake M 2.3 about 98 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 33.7150, -116.8380. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Diego County, CA | 77 km (48 mi) | N of here | earthquakes near San Diego County |
| Riverside County, CA | 77 km (48 mi) | W of here | earthquakes near Riverside County |
| Orange County, CA | 87 km (54 mi) | E of here | earthquakes near Orange 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.
- 1.7 8km SW of Anza, CA
- 1.9 23km SSW of La Quinta, CA
- 1.7 1km ESE of Redlands, CA
- 1.6 7km ENE of Aguanga, CA
- 1.8 1km SE of Redlands, CA
- 1.6 1km ESE of Redlands, CA
- 1.6 6km S of Redlands, CA
- 1.8 6km E of Calimesa, CA
- 1.6 4km SE of Loma Linda, CA
- 2.6 14km WNW of Anza, CA
- 2.2 17km ESE of Anza, CA
- 1.9 11km WSW of Garnet, CA
- 2.1 20km ESE of Anza, CA
- 3.1 15km ESE of Anza, CA
- 1.9 13km WNW of Anza, 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 5.2 on 2016-06-10 — it released about 19,000 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.