Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Huntington Beach, CA
No earthquake was likely felt in Huntington Beach in the 24 hours to 7:40 pm PST (03:40 UTC). The last one was M 3.2, 22 km (14 mi) NW, at 12:44 am PDT on 9 October 2026, estimated intensity II (weak) in town; 1,090 felt reports to USGS. Every earthquake near Huntington Beach
This page: a magnitude 1.9 earthquake was recorded 8 km (5 mi) north-northwest of Huntington Beach, CA, at 9:59 am PDT on 10 June 2021 (16:59 UTC), 14 km deep. 2 people have reported feeling it to USGS.
USGS: 5km NW of Huntington Beach, CA
in Huntington Beach, CA · 48 km (30 mi) SE of Los Angeles, CA
- When
- 9:59 am PDT on 10 June 2021 ()
- Where
- 8 km (5 mi) north-northwest of Huntington Beach, CA · earthquakes near Huntington Beach
- Magnitude
- M 1.9 (ml)
- Depth
- 14 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Orange County, 25 km ESE
- Nearest mapped fault
- Newport-Inglewood-Rose Canyon 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 1695 days ago
Earthquake alerts for Huntington Beach, CA
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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 5 km (3 mi) from the epicentre. In Huntington Beach, 8 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: Westminster 5 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
- Magna, Utah 2020 M 5.7 480,000× the energy of this one
- Around the size people start to feel M 3.0 43× the energy of this one
- This earthquake M 1.9 about 22 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 8,800 times the energy of this one.
Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:
- 6.4 The 1933 Long Beach, California Earthquake · 11 km SSE of this epicentre
- 5.9 The 1987 Whittier Narrows, California Earthquake · 38 km N of this epicentre
- 5.4 5km S of Chino Hills, CA · 36 km NE of this epicentre
- 5.3 7km W of Newport Beach, CA · 11 km SSE of this epicentre
- 5.2 8km ENE of Trabuco Canyon, CA · 49 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 33.7200, -118.0383. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Orange County, CA | 25 km (15 mi) | ESE | earthquakes near Orange County |
| Los Angeles County, CA | 57 km (35 mi) | NNW | earthquakes near Los Angeles County |
| Ventura County, CA | 123 km (77 mi) | NW | earthquakes near Ventura County |
| San Diego County, CA | 140 km (87 mi) | ESE | earthquakes near San Diego County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
37 earthquakes have been recorded within 50 km since this one.
- 1.9 7km ESE of San Pedro, CA
- 2.6 1km ESE of Carson, CA
- 1.6 2km E of Carson, CA
- 2.5 0km ESE of Carson, CA
- 2.0 2km SE of Carson, CA
- 2.8 2km ESE of Carson, CA
- 4.3 2km E of Carson, CA
- 1.6 4km NE of Whittier, CA
- 2.0 30km SW of Dana Point, CA
- 1.7 2km NNW of Inglewood, CA
- 1.7 30km SW of Dana Point, CA
- 1.8 4km NW of Silver Lake, CA
- 1.8 3km SSE of Garden Grove, CA
- 1.9 16km NNE of Avalon, CA
- 1.8 1km NNW of La Puente, 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.