QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Montecito, CA

No earthquake was likely felt in Montecito in the 24 hours to 5:22 am PST (13:22 UTC). The last one was M 2.7, 14 km (9 mi) WSW, at 8:40 am PDT on 5 October 2026, estimated intensity II (weak) in town; 59 felt reports to USGS. Every earthquake near Montecito

This page: a magnitude 1.7 earthquake was recorded 27 km (17 mi) north-northeast of Montecito, CA, at 7:12 am PDT on 15 October 2024 (14:12 UTC), 6.4 km deep.

USGS: 27 km NNE of Montecito, CA

33 km (21 mi) NNE of Santa Barbara, CA · 127 km (79 mi) NW of Los Angeles, CA

7:12 am PDT, Oct 15, 2024 · · 6.4 km deep · released about 12 lb of TNT

10 km30 km60 km120 km N Santa Barbara County 48 kmVentura County 51 kmKern County 106 kmSan Luis Obispo County 115 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
7:12 am PDT on 15 October 2024 ()
Where
27 km (17 mi) north-northeast of Montecito, CA · earthquakes near Montecito
Magnitude
M 1.7 (ml)
Depth
6.4 km below the surface
Felt
no reports yet
Nearest
Santa Barbara County, 48 km WSW
Nearest mapped fault
Santa Ynez fault, 20 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 758 days ago

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 11 km (7 mi) from the epicentre. In Montecito, 27 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: Toro Canyon, Summerland, Mission Canyon.

How big was it?

This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 5.1 on 2023-08-20 — about 100,000 times the energy of this one.

Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.8 The 1925 Santa Barbara, California Earthquake · 47 km SSW of this epicentre
  2. 5.5 Southwest of Tejon Pass, California · 50 km E of this epicentre
  3. 5.5 10 km NE of Toro Canyon, California · 19 km SSE of this epicentre
  4. 5.5 The 1941 Santa Barbara, California Earthquake · 38 km S of this epicentre
  5. 5.1 The 1978 Santa Barbara, California Earthquake · 42 km SSW 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 34.6687, -119.5432. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Santa Barbara County, CA 48 km (30 mi) WSW earthquakes near Santa Barbara County
Ventura County, CA 51 km (32 mi) SE earthquakes near Ventura County
Kern County, CA 106 km (66 mi) NE earthquakes near Kern County
San Luis Obispo County, CA 115 km (71 mi) NW earthquakes near San Luis Obispo County
Los Angeles County, CA 129 km (80 mi) ESE earthquakes near Los Angeles County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

25 earthquakes have been recorded within 50 km since this one.

  1. 1.6 13 km N of Santa Paula, CA
  2. 2.9 4 km W of Santa Barbara, CA
  3. 1.8 4 km WNW of Santa Barbara, CA
  4. 2.2 5 km WNW of Santa Barbara, CA
  5. 2.3 4 km W of Santa Barbara, CA
  6. 1.6 16 km SE of Maricopa, CA
  7. 2.7 18 km ENE of Ojai, CA
  8. 1.7 19 km SSW of Carpinteria, CA
  9. 2.2 2 km W of Carpinteria, CA
  10. 2.0 25 km SSW of Frazier Park, CA
  11. 2.3 14 km SSE of Isla Vista, CA
  12. 2.3 14 km SSE of Isla Vista, CA
  13. 2.9 16 km SSE of Isla Vista, CA
  14. 1.6 12 km SSE of Isla Vista, CA
  15. 1.7 14 km SSE of Santa Barbara, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.