Earthquake · reviewed by a seismologist
M 0.9ml
Earthquake near Pasadena, CA
USGS: 1 km SSW of Pasadena, CA
29 km (18 mi) ENE of Los Angeles, CA · in Pasadena, CA
- When
- 2:29 am PDT on 2 October 2026 ()
- Where
- in Pasadena, CA · earthquakes near Pasadena
- Magnitude
- M 0.9 (ml)
- Depth
- 17 km below the surface
- Felt
- no reports yet
- Nearest
- Los Angeles County, 13 km WNW
- Nearest mapped fault
- Raymond fault, 3 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 17 hours ago
A magnitude 0.9 earthquake was recorded in Pasadena, CA, at 2:29 am PDT on 2 October 2026 (09:29 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: South Pasadena, San Marino, Altadena, East Pasadena, Alhambra, San Gabriel.
How big was it?
This earthquake released about 0.68 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 22,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 16,000,000× the energy of this one
- Around the size people start to feel M 3.0 1,400× the energy of this one
- This earthquake M 0.9 about 0.68 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 4.5 on 2020-09-19 — about 290,000 times the energy of this one.
Before 2016, the USGS record lists 21 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 Northridge, California, earthquake · 38 km W of this epicentre
- 6.6 1971 San Fernando Earthquake, California · 37 km NW of this epicentre
- 5.9 The 1987 Whittier Narrows, California Earthquake · 11 km SSE of this epicentre
- 5.9 1km ENE of Granada Hills, California · 36 km WNW of this epicentre
- 5.8 10km SSW of Agua Dulce, CA · 37 km NW 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 34.1488, -118.1352. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Los Angeles County, CA | 13 km (8 mi) | WNW | earthquakes near Los Angeles County |
| Orange County, CA | 62 km (39 mi) | SSE | earthquakes near Orange County |
| Ventura County, CA | 95 km (59 mi) | WNW | earthquakes near Ventura County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has been recorded within 50 km since this one.
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.
Revisions
USGS refines a solution as more stations report. Every change we have seen is listed here.
| What changed | From | To | When |
|---|---|---|---|
| review status | automatic | reviewed | |
| location | 5 km S of Long Beach, CA | 1 km SSW of Pasadena, CA | |
| longitude | -118.16 | -118.14 | |
| latitude | 33.76 | 34.15 | |
| depth | 4.84 | 17.3 | |
| magnitude | 1.33 | 0.9 |
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.