Earthquake · reviewed by a seismologist
M 0.3ml
Earthquake near Julian, CA
USGS: 12 km NE of Julian, CA
69 km (43 mi) ENE of San Diego, CA · 52 km (32 mi) E of Escondido, CA
- When
- 11:05 pm PDT on 30 September 2026 ()
- Where
- 12 km (7 mi) NE of Julian, CA · earthquakes near Julian
- Magnitude
- M 0.3 (ml)
- Depth
- 7.8 km below the surface
- Felt
- no reports yet
- Nearest
- San Diego County, 28 km WSW
- Nearest mapped fault
- Elsinore fault, 2 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 30 hours ago
A magnitude 0.3 earthquake was recorded 12 km (7 mi) NE of Julian, CA, at 11:05 pm PDT on 30 September 2026 (06:05 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Borrego Springs.
How big was it?
This earthquake released about 0.077 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 200,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 140,000,000× the energy of this one
- Around the size people start to feel M 3.0 12,000× the energy of this one
- This earthquake M 0.3 about 0.077 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 5.2 on 2025-04-14 — about 26,000,000 times the energy of this one.
Before 2016, the USGS record lists 15 earthquakes of M5 or more within 50 km; the five largest:
- 6.6 The 1968 Borrego Mountain, California Earthquake · 38 km E of this epicentre
- 6.4 The 1954 San Jacinto Fault, California Earthquake · 43 km ENE of this epicentre
- 6.0 16km WSW of Oasis, CA · 37 km NE of this epicentre
- 5.7 Eastern San Diego County, California · 39 km E of this epicentre
- 5.5 8km NNE of Ocotillo Wells, CA · 39 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 33.1540, -116.5133. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 28 km (18 mi) | WSW | earthquakes near San Diego County |
| Riverside County, CA | 80 km (50 mi) | NE | earthquakes near Riverside County |
| Imperial County, CA | 109 km (67 mi) | E | earthquakes near Imperial County |
| Orange County, CA | 131 km (81 mi) | WNW | earthquakes near Orange County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
23 earthquakes have been recorded within 50 km since this one.
- 0.4 4 km E of Anza, CA
- 0.3 15 km N of Warner Springs, CA
- 0.8 21 km ESE of Anza, CA
- 0.3 15 km N of Warner Springs, CA
- 0.9 22 km ESE of Anza, CA
- 0.7 22 km ESE of Anza, CA
- 0.6 21 km ESE of Anza, CA
- 0.6 22 km ESE of Anza, CA
- 2.0 22 km ESE of Anza, CA
- 0.4 18 km ESE of Anza, CA
- 0.3 14 km N of Warner Springs, CA
- 1.0 11 km SSW of Borrego Springs, CA
- 0.7 24 km NE of Pine Valley, CA
- 1.1 11 km SSW of Borrego Springs, CA
- 0.7 22 km ESE of Anza, 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.