Earthquake · reviewed by a seismologist
M 2.0ml
Earthquake near Yucaipa, CA
No earthquake was likely felt in Yucaipa in the 24 hours to 5:06 am PST (13:06 UTC). The last one was M 1.5, 8 km (5 mi) ESE, at 3:54 pm PST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Yucaipa
This page: a magnitude 2.0 earthquake was recorded 9 km (5 mi) east of Yucaipa, CA, at 3:50 am PST on 31 December 2020 (11:50 UTC), 14 km deep.
USGS: 9km E of Yucaipa, CA
9 km (5 mi) E of Yucaipa, CA · 135 km (84 mi) E of Los Angeles, CA
- When
- 3:50 am PST on 31 December 2020 ()
- Where
- 9 km (5 mi) east of Yucaipa, CA · earthquakes near Yucaipa
- Magnitude
- M 2.0 (ml)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Orange County, 87 km WSW
- Nearest mapped fault
- San Andreas fault, under 1 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2142 days ago
Earthquake alerts for Yucaipa, CA
Get a notification in this browser when USGS records an earthquake near Yucaipa, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 8 km (5 mi) from the epicentre. In Yucaipa, 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.
Earthquakes near other towns within 30 km: Cherry Valley, Calimesa, Beaumont, Banning, Mentone, Cabazon.
How big was it?
This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
- Magna, Utah 2020 M 5.7 350,000× the energy of this one
- Around the size people start to feel M 3.0 32× the energy of this one
- This earthquake M 2.0 about 30 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 5,400 times the energy of this one.
Before 2016, the USGS record lists 23 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 The 1918 San Jacinto, California Earthquake · 31 km S of this epicentre
- 6.3 The 1992 Big Bear, California Earthquake · 21 km NNE of this epicentre
- 6.2 3 km SE of San Bernardino, California · 29 km W of this epicentre
- 6.0 The 1986 North Palm Springs, California Earthquake · 32 km E of this epicentre
- 5.6 7km ENE of Running Springs, CA · 23 km NNW of this epicentre
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 34.0427, -116.9503. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Orange County, CA | 87 km (54 mi) | WSW | earthquakes near Orange County |
| Riverside County, CA | 94 km (59 mi) | ESE | earthquakes near Riverside County |
| San Diego County, CA | 114 km (71 mi) | S | earthquakes near San Diego County |
| San Bernardino County, CA | 115 km (71 mi) | NE | earthquakes near San Bernardino County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
49 earthquakes have been recorded within 50 km since this one.
- 1.6 3km S of Loma Linda, CA
- 1.7 6km S of Loma Linda, CA
- 1.7 16km SE of Big Bear City, CA
- 2.1 7km N of Fontana, CA
- 2.0 17km SE of Big Bear City, CA
- 1.6 7km SSE of Banning, CA
- 2.4 7km SSW of Idyllwild, CA
- 2.3 6km SW of Idyllwild, CA
- 2.1 4km E of Cabazon, CA
- 1.8 6km SW of Idyllwild, CA
- 1.9 8km SSE of Redlands, CA
- 1.6 7km NNE of Moreno Valley, CA
- 1.8 14km S of Big Bear Lake, CA
- 1.7 9km SE of Valle Vista, CA
- 1.6 8km SW of Morongo Valley, 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.
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.