Earthquake · reviewed by a seismologist
M 2.6ml
Earthquake near Carpinteria, CA
No earthquake was likely felt in Carpinteria in the 24 hours to 7:53 am PST (15:53 UTC). The last one was M 1.9, 11 km (7 mi) E, at 1:23 am PDT on 9 October 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Carpinteria
This page: a magnitude 2.6 earthquake was recorded 19 km (12 mi) south-southeast of Carpinteria, CA, at 2:01 am PDT on 24 August 2017 (09:01 UTC), 14 km deep. 3 people have reported feeling it to USGS.
USGS: 19km SSE of Carpinteria, CA
100 km (62 mi) WNW of Los Angeles, CA · 20 km (12 mi) W of San Buenaventura (Ventura), CA
- When
- 2:01 am PDT on 24 August 2017 ()
- Where
- 19 km (12 mi) south-southeast of Carpinteria, CA · earthquakes near Carpinteria
- Magnitude
- M 2.6 (ml)
- Depth
- 14 km below the surface
- Felt
- 3 reports · strongest reported intensity III
- Nearest
- Ventura County, 34 km ENE
- Nearest mapped fault
- Oak Ridge fault (offshore), 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 1558 days ago
Earthquake alerts for Carpinteria, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 20 km (12 mi) from the epicentre. In Carpinteria, 19 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: Ventura 17 km, intensity II · Carpinteria 19 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 260 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 59,000× the energy of this one
- Magna, Utah 2020 M 5.7 42,000× the energy of this one
- Around the size people start to feel M 3.0 3.7× the energy of this one
- This earthquake M 2.6 about 260 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 4.1 on 2016-03-12 — about 180 times the energy of this one.
Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:
- 6.8 The 1925 Santa Barbara, California Earthquake · 32 km WNW of this epicentre
- 5.5 30 km SW of Channel Islands Beach, California · 26 km S of this epicentre
- 5.5 10 km NE of Toro Canyon, California · 30 km N of this epicentre
- 5.5 The 1941 Santa Barbara, California Earthquake · 14 km NW of this epicentre
- 5.3 The 1973 Point Mugu, California Earthquake · 48 km SE 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 34.2347, -119.4655. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Ventura County, CA | 34 km (21 mi) | ENE | earthquakes near Ventura County |
| Santa Barbara County, CA | 62 km (39 mi) | WNW | earthquakes near Santa Barbara County |
| Los Angeles County, CA | 111 km (69 mi) | E | earthquakes near Los Angeles County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
40 earthquakes have been recorded within 50 km since this one.
- 2.3 21km NNW of Santa Cruz Is. (E end), CA
- 2.0 14km SW of Port Hueneme, CA
- 2.6 28km SW of Santa Cruz Is. (E end), CA
- 2.4 29km SE of Santa Cruz Is. (NW end), CA
- 1.7 6km ESE of Port Hueneme, CA
- 2.4 17km SW of Port Hueneme, CA
- 1.9 20km SE of Port Hueneme, CA
- 2.4 1km WSW of Santa Barbara, CA
- 2.8 16km N of Santa Paula, CA
- 1.5 15km N of Santa Paula, CA
- 2.2 16km N of Santa Paula, CA
- 1.7 15km N of Santa Paula, CA
- 1.8 15km N of Santa Paula, CA
- 1.6 15km N of Santa Paula, CA
- 1.6 15km N of Santa Paula, 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.