Earthquake · reviewed by a seismologist
M 3.2ml
8km SSW of Idyllwild, CA
- When
- Magnitude
- M 3.2 (ml)
- Depth
- 16 km below the surface
- Felt
- 223 reports · strongest reported intensity IV
- Measured shaking
- intensity V (ShakeMap)
- Nearest
- Riverside County, 70 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3322 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 223 people have reported feeling it to USGS.
How big was it?
This earthquake released about 1,800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 190,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 8,500× the energy of this one
- Magna, Utah 2020 M 5.7 6,000× the energy of this one
- This earthquake M 3.2 about 1,800 lb of TNT
- Around the size people start to feel M 3.0 this one released 1.9× more
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 33.6762, -116.7607. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Riverside County, CA | 70 km (44 mi) | W of here | earthquakes near Riverside County |
| San Diego County, CA | 73 km (45 mi) | N of here | earthquakes near San Diego County |
| Orange County, CA | 94 km (58 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
44 earthquakes have been recorded within 50 km since this one.
- 1.8 9km NE of Aguanga, CA
- 2.9 8km NE of Aguanga, CA
- 1.8 12km NNE of Cabazon, CA
- 1.6 9km NE of Aguanga, CA
- 1.6 10km S of Idyllwild, CA
- 1.6 10km S of Idyllwild, CA
- 1.6 10km S of Idyllwild, CA
- 1.9 10km NNE of Banning, CA
- 1.8 9km NE of Aguanga, CA
- 1.6 5km SW of Idyllwild, CA
- 1.8 12km NNE of Cabazon, CA
- 1.5 12km NNE of Cabazon, CA
- 1.5 6km SW of Idyllwild, CA
- 1.8 10km SW of Idyllwild, CA
- 1.5 9km NE of Aguanga, 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 1,000 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.