Earthquake · reviewed by a seismologist
M 1.5ml
13 km W of Isla Vista, California
- When
- Magnitude
- M 1.5 (ml)
- Depth
- 1.0 km below the surface
- Felt
- no reports yet
- Nearest
- Santa Barbara County, 13 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3387 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 6.2 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 2,500,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.5 about 6.2 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.
Where
Epicentre 34.4198, -120.0110. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Santa Barbara County, CA | 13 km (8 mi) | S of here | earthquakes near Santa Barbara County |
| Ventura County, CA | 81 km (50 mi) | W of here | earthquakes near Ventura County |
| San Luis Obispo County, CA | 115 km (71 mi) | SSE of here | earthquakes near San Luis Obispo County |
| Kern County, CA | 156 km (97 mi) | SW of here | earthquakes near Kern County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 2.1 22km SSE of Santa Barbara, CA
- 1.8 9km W of Isla Vista, CA
- 1.7 4km SW of Carpinteria, CA
- 2.2 4km SW of Carpinteria, CA
- 2.5 8km S of Carpinteria, CA
- 1.8 10km SE of Santa Ynez, CA
- 1.7 8km ESE of Vandenberg Village, CA
- 1.7 4km S of Buellton, CA
- 1.6 14km SSE of Santa Barbara, CA
- 1.8 12km NNW of Santa Barbara, CA
- 2.0 13km W of Isla Vista, CA
- 1.9 14km SSE of Santa Barbara, CA
- 1.8 15km SSE of Santa Barbara, CA
- 1.7 14km SSE of Santa Barbara, CA
- 2.0 7km S of Montecito, 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.
For this area
The largest earthquake within 50 km in our catalogue was M 4.1 on 2017-05-17 — it released about 6,000 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
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.