Earthquake · reviewed by a seismologist
M 1.5ml
Earthquake near Duarte, CA
No earthquake was likely felt in Duarte in the 24 hours to 9:31 am PST (17:31 UTC). The last one was M 3.8, 78 km (48 mi) WNW, at 8:00 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 199 felt reports to USGS. Every earthquake near Duarte
This page: a magnitude 1.5 earthquake was recorded 3 km (2 mi) south-southeast of Duarte, CA, at 8:46 am PST on 12 November 2022 (16:46 UTC), 11 km deep.
USGS: 3km SSE of Duarte, CA
in Baldwin Park, CA · 42 km (26 mi) ENE of Los Angeles, CA
- When
- 8:46 am PST on 12 November 2022 ()
- Where
- 3 km (2 mi) south-southeast of Duarte, CA · earthquakes near Duarte
- Magnitude
- M 1.5 (ml)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- Los Angeles County, 28 km WNW
- Nearest mapped fault
- Sierra Madre fault, 4 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 1460 days ago
Earthquake alerts for Duarte, CA
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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. In Duarte, 3 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: Baldwin Park, Irwindale, Mayflower Village, Bradbury, Monrovia, North El Monte.
How big was it?
This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
- Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
- Around the size people start to feel M 3.0 180× the energy of this one
- This earthquake M 1.5 about 5.4 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 2020-09-19 — about 36,000 times the energy of this one.
Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:
- 6.6 1971 San Fernando Earthquake, California · 50 km NW of this epicentre
- 5.9 The 1987 Whittier Narrows, California Earthquake · 12 km WSW of this epicentre
- 5.8 10km SSW of Agua Dulce, CA · 50 km NW of this epicentre
- 5.8 10km SSW of Agua Dulce, CA · 50 km NW of this epicentre
- 5.8 The 1991 Sierra Madre, California Earthquake · 18 km N 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 34.1135, -117.9708. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Los Angeles County, CA | 28 km (18 mi) | WNW | earthquakes near Los Angeles County |
| Orange County, CA | 52 km (32 mi) | SSE | earthquakes near Orange County |
| Ventura County, CA | 110 km (69 mi) | WNW | earthquakes near Ventura County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
43 earthquakes have been recorded within 50 km since this one.
- 2.3 6km NNW of Mira Loma, CA
- 1.6 1km SSE of Carson, CA
- 2.0 2km NNE of Sherman Oaks, CA
- 1.8 5km WSW of Huntington Beach, CA
- 1.6 12km NNE of Glendora, CA
- 1.8 2km ESE of Granada Hills, CA
- 2.1 2km NNW of Rolling Hills Estates, CA
- 1.5 11km S of Wrightwood, CA
- 1.8 2km N of Fontana, CA
- 1.5 7km SW of Pearblossom, CA
- 1.6 3km NNW of Fontana, CA
- 1.8 7km N of Yorba Linda, CA
- 1.6 4km NNW of Fontana, CA
- 1.5 14km N of Bradbury, CA
- 1.6 3km NNW of Fontana, 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.