Earthquake near Yucaipa, CA

A magnitude 1.1 earthquake was recorded 11 km (7 mi) E of Yucaipa, CA, at 2:05 am PDT on 2 October 2026 (09:05 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Cherry Valley, Beaumont, Calimesa, Banning, Cabazon, Mentone.

How big was it?

This earthquake released about 1.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.1 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 11,000,000× the energy of this one
2. Magna, Utah 2020 M 5.7 7,700,000× the energy of this one
3. Around the size people start to feel M 3.0 680× the energy of this one
4. This earthquake M 1.1 about 1.4 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 120,000 times the energy of this one.

Before 2016, the USGS record lists 27 earthquakes of M5 or more within 50 km; the five largest:

1. 7.3 The 1992 Landers, California Earthquake · 49 km ENE of this epicentre Jun 28, 1992
2. 6.7 The 1918 San Jacinto, California Earthquake · 30 km S of this epicentre Apr 21, 1918
3. 6.3 The 1992 Big Bear, California Earthquake · 21 km NNE of this epicentre Jun 28, 1992
4. 6.2 3 km SE of San Bernardino, California · 31 km WNW of this epicentre Jul 23, 1923
5. 6.0 The 1986 North Palm Springs, California Earthquake · 30 km E of this epicentre Jul 8, 1986

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 34.0323, -116.9288. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.0 8 km ESE of Valle Vista, CA 18:38 UTC
2. 1.4 7 km N of Big Bear City, CA 17:05 UTC
3. 0.2 10 km SSW of Idyllwild, CA 14:37 UTC
4. 1.2 7 km N of Beaumont, CA 14:17 UTC
5. 0.5 10 km SE of Winchester, CA 12:15 UTC
6. 0.7 10 km SE of Winchester, CA 10:43 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 02:10 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

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.