Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Banning, CA
No earthquake was likely felt in Banning in the 24 hours to 3:21 am PST (11:21 UTC). The last one was M 2.8, 15 km (10 mi) SSW, at 8:30 pm PDT on 14 October 2026, estimated intensity II (weak) in town; 87 felt reports to USGS. Every earthquake near Banning
This page: a magnitude 1.8 earthquake was recorded in Banning, CA, at 9:05 am PST on 28 February 2018 (17:05 UTC), 16 km deep.
USGS: 1km ENE of Banning, CA
10 km (6 mi) NE of Beaumont, CA · 143 km (89 mi) E of Los Angeles, CA
- When
- 9:05 am PST on 28 February 2018 ()
- Where
- in Banning, CA · earthquakes near Banning
- Magnitude
- M 1.8 (ml)
- Depth
- 16 km below the surface
- Felt
- no reports yet
- Nearest
- Riverside County, 83 km ESE
- Nearest mapped fault
- San Gorgonio Pass fault, 2 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 3178 days ago
Earthquake alerts for Banning, CA
Get a notification in this browser when USGS records an earthquake near Banning, 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 it was probably too small to be felt, even directly above it. 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: Cabazon, Beaumont, Cherry Valley, San Jacinto, Calimesa, Yucaipa.
How big was it?
This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 710,000× the energy of this one
- Around the size people start to feel M 3.0 63× the energy of this one
- This earthquake M 1.8 about 15 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 4.4 on 2016-01-06 — about 7,700 times the energy of this one.
Before 2016, the USGS record lists 30 earthquakes of M5 or more within 50 km; the five largest:
- 7.3 The 1992 Landers, California Earthquake · 50 km NE of this epicentre
- 6.7 The 1918 San Jacinto, California Earthquake · 21 km SSW of this epicentre
- 6.3 The 1992 Big Bear, California Earthquake · 31 km N of this epicentre
- 6.2 3 km SE of San Bernardino, California · 41 km WNW of this epicentre
- 6.0 The 1948 Desert Hot Springs, California Earthquake · 50 km E 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 33.9285, -116.8645. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Riverside County, CA | 83 km (51 mi) | ESE | earthquakes near Riverside County |
| Orange County, CA | 89 km (55 mi) | WSW | earthquakes near Orange County |
| San Diego County, CA | 101 km (63 mi) | S | earthquakes near San Diego County |
| San Bernardino County, CA | 121 km (75 mi) | NNE | earthquakes near San Bernardino County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
51 earthquakes have been recorded within 50 km since this one.
- 2.1 9km NNW of Anza, CA
- 2.5 2km NE of Redlands, CA
- 1.9 2km NE of Redlands, CA
- 1.6 2km NE of Redlands, CA
- 1.5 10km N of Cabazon, CA
- 1.7 9km SSW of Idyllwild, CA
- 2.0 5km S of Idyllwild, CA
- 1.8 8km NE of Aguanga, CA
- 2.1 5km SSW of Idyllwild, CA
- 1.8 5km S of Idyllwild, CA
- 2.4 5km SSW of Idyllwild, CA
- 1.7 7km N of Big Bear City, CA
- 1.5 9km NE of Big Bear City, CA
- 2.3 5km SSE of Mentone, CA
- 1.6 10km SSW of Idyllwild, 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.