Earthquake near Cabazon, CA

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 20 km (12 mi) from the epicentre. In Cabazon, 9 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Banning 13 km, intensity II · Morongo Valley 18 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 75,000× the energy of this one
2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
3. Around the size people start to feel M 3.0 4.7× the energy of this one
4. This earthquake M 2.5 about 200 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.5 on 2018-05-08 — about 810 times the energy of this one.

Before 2016, the USGS record lists 38 earthquakes of M5 or more within 50 km; the five largest:

1. 7.3 The 1992 Landers, California Earthquake · 38 km NE of this epicentre Jun 28, 1992
2. 6.7 The 1918 San Jacinto, California Earthquake · 32 km SW of this epicentre Apr 21, 1918
3. 6.3 The 1992 Big Bear, California Earthquake · 23 km NNW of this epicentre Jun 28, 1992
4. 6.2 3 km SE of San Bernardino, California · 46 km WNW of this epicentre Jul 23, 1923
5. 6.1 The 1992 Joshua Tree, California Earthquake · 42 km E of this epicentre Apr 23, 1992

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 33.9978, -116.7705. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.7 1km NNW of Loma Linda, CA 08:08 UTC
2. 1.5 14km S of Big Bear Lake, CA 06:05 UTC
3. 1.7 10km N of Big Bear Lake, CA 08:08 UTC
4. 2.0 9km N of Cabazon, CA 01:09 UTC
5. 1.8 12km SSE of Yucca Valley, CA 22:27 UTC
6. 2.2 2km ESE of Loma Linda, CA 10:46 UTC
7. 2.2 8km NNE of Banning, CA 18:12 UTC
8. 1.6 19km N of Cabazon, CA 01:54 UTC
9. 3.4 14km NE of Yucaipa, CA 20:53 UTC
10. 2.0 11km ESE of Big Bear City, CA 09:30 UTC
11. 1.9 5km NE of Anza, CA 00:28 UTC
12. 2.2 8km ENE of Moreno Valley, CA 08:51 UTC
13. 1.6 8km ENE of Moreno Valley, CA 08:50 UTC
14. 1.7 6km SW of Cabazon, CA 05:05 UTC
15. 2.5 7km NNE of Green Acres, CA 18:38 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 12:38 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

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.