Earthquake · reviewed by a seismologist
M 2.9ml
6km SW of Idyllwild, CA
- When
- Magnitude
- M 2.9 (ml)
- Depth
- 17 km below the surface
- Felt
- 11 reports · strongest reported intensity II
- Nearest
- Riverside County, 71 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1170 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 11 people have reported feeling it to USGS.
How big was it?
This earthquake released about 630 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 24,000× the energy of this one
- Magna, Utah 2020 M 5.7 17,000× the energy of this one
- Around the size people start to feel M 3.0 1.5× the energy of this one
- This earthquake M 2.9 about 630 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 33.7063, -116.7725. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Riverside County, CA | 71 km (44 mi) | W of here | earthquakes near Riverside County |
| San Diego County, CA | 76 km (47 mi) | N of here | earthquakes near San Diego County |
| Orange County, CA | 93 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
46 earthquakes have been recorded within 50 km since this one.
- 1.6 5km N of San Jacinto, CA
- 1.5 2km ESE of Cabazon, CA
- 1.7 4km NE of Moreno Valley, CA
- 1.6 2km NE of San Jacinto, CA
- 1.8 3km NW of Cabazon, CA
- 2.6 5km NE of Beaumont, CA
- 1.7 8km NNW of Cabazon, CA
- 1.9 7km SSW of Morongo Valley, CA
- 1.5 7km SSW of Morongo Valley, CA
- 1.9 7km SSW of Morongo Valley, CA
- 1.6 23km ESE of Anza, CA
- 2.2 4km E of Yucaipa, CA
- 1.5 13km NNE of Banning, CA
- 1.5 9km NNE of Cabazon, CA
- 2.4 10km WNW of Garnet, 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 2,900 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.