QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Montecito, CA

No earthquake was likely felt in Montecito in the 24 hours to 11:40 am PST (19:40 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 1.6 earthquake was recorded 30 km (18 mi) north-northeast of Montecito, CA, at 4:38 pm PDT on 30 March 2020 (23:38 UTC), 5.2 km deep.

USGS: 30km NNE of Montecito, CA

36 km (22 mi) NNE of Santa Barbara, CA · 127 km (79 mi) NW of Los Angeles, CA

4:38 pm PDT, Mar 30, 2020 · · 5.2 km deep · released about 8.7 lb of TNT

10 km30 km60 km120 km N Santa Barbara County 50 kmVentura County 52 kmKern County 103 kmSan Luis Obispo County 114 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
4:38 pm PDT on 30 March 2020 ()
Where
30 km (18 mi) north-northeast of Montecito, CA · earthquakes near Montecito
Magnitude
M 1.6 (ml)
Depth
5.2 km below the surface
Felt
no reports yet
Nearest
Santa Barbara County, 50 km WSW
Nearest mapped fault
Santa Ynez fault, 22 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 2417 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 10 km (6 mi) from the epicentre. In Montecito, 30 km away, the estimate is intensity I (not felt). 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.

How big was it?

This earthquake released about 8.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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 5,400 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 · 50 km SSW of this epicentre
  2. 5.5 Southwest of Tejon Pass, California · 48 km E of this epicentre
  3. 5.5 10 km NE of Toro Canyon, California · 21 km S of this epicentre
  4. 5.5 The 1941 Santa Barbara, California Earthquake · 40 km S of this epicentre
  5. 5.1 The 1978 Santa Barbara, California Earthquake · 45 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 34.6892, -119.5282. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Santa Barbara County, CA 50 km (31 mi) WSW earthquakes near Santa Barbara County
Ventura County, CA 52 km (32 mi) SE earthquakes near Ventura County
Kern County, CA 103 km (64 mi) NE earthquakes near Kern County
San Luis Obispo County, CA 114 km (71 mi) NW earthquakes near San Luis Obispo County
Los Angeles County, CA 128 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

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

  1. 2.1 5km SSE of Santa Ynez, CA
  2. 2.4 5km SSE of Santa Ynez, CA
  3. 1.5 8km SW of Ojai, CA
  4. 1.6 8km SW of Ojai, CA
  5. 2.6 10km WNW of Ventura, CA
  6. 2.0 10km WNW of Ventura, CA
  7. 1.9 8km W of Ventura, CA
  8. 1.9 11km NE of Pine Mountain Club, CA
  9. 1.7 12km E of Ojai, CA
  10. 2.9 11km NNW of Santa Paula, CA
  11. 1.6 8km NW of Santa Paula, CA
  12. 2.6 12km E of Ojai, CA
  13. 1.6 10km NW of Santa Paula, CA
  14. 1.7 10km NNW of Santa Paula, CA
  15. 1.5 11km NNW 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

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