Earthquake · reviewed by a seismologist
M 1.8md
Earthquake near Pleasanton, CA
No earthquake was likely felt in Pleasanton in the 24 hours to 1:29 am PST (09:29 UTC). The last one was M 1.9, 9 km (6 mi) W, at 10:32 am PST on 2 November 2026, estimated intensity II (weak) in town. Every earthquake near Pleasanton
This page: a magnitude 1.8 earthquake was recorded 7 km (4 mi) north-northeast of Pleasanton, CA, at 8:08 am PDT on 7 April 2026 (15:08 UTC), 14 km deep.
USGS: 7 km NNE of Pleasanton, CA
5 km (3 mi) E of Dublin, CA · 47 km (29 mi) N of San Jose, CA
- When
- 8:08 am PDT on 7 April 2026 ()
- Where
- 7 km (4 mi) north-northeast of Pleasanton, CA · earthquakes near Pleasanton
- Magnitude
- M 1.8 (md)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Alameda County, 10 km SW
- Nearest mapped fault
- Pleasanton fault, 5 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 211 days ago
Earthquake alerts for Pleasanton, CA
Get a notification in this browser when USGS records an earthquake near Pleasanton, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 1 km (1 mi) from the epicentre. In Pleasanton, 7 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: Livermore, Dublin, Blackhawk, San Ramon, Diablo, Danville.
How big was it?
This earthquake released about 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
- Magna, Utah 2020 M 5.7 680,000× the energy of this one
- Around the size people start to feel M 3.0 61× the energy of this one
- This earthquake M 1.8 about 16 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 2022-10-25 — about 75,000 times the energy of this one.
Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:
- 6.2 Near San Jose, California · 46 km S of this epicentre
- 6.2 The 1984 Morgan Hill, California Earthquake · 47 km SSE of this epicentre
- 5.8 The 1980 Livermore, California Earthquake · 15 km NNE of this epicentre
- 5.7 15 km NE of East Foothills, California · 29 km SSE of this epicentre
- 5.5 6 km NNE of East Foothills, California · 32 km S 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 37.7148, -121.8350. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Alameda County, CA | 10 km (6 mi) | SW | earthquakes near Alameda County |
| Contra Costa County, CA | 25 km (16 mi) | NNW | earthquakes near Contra Costa County |
| San Joaquin County, CA | 55 km (34 mi) | ENE | earthquakes near San Joaquin County |
| Santa Clara County, CA | 56 km (35 mi) | SSE | earthquakes near Santa Clara County |
| San Mateo County, CA | 58 km (36 mi) | SW | earthquakes near San Mateo County |
| Solano County, CA | 62 km (39 mi) | N | earthquakes near Solano County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
48 earthquakes have been recorded within 50 km since this one.
- 2.0 2 km ENE of Hayward, CA
- 1.6 3 km NE of Millbrae, CA
- 1.6 9 km ENE of Blackhawk, CA
- 1.7 3 km SW of Clayton, CA
- 2.4 2 km NNE of Hayward, CA
- 1.9 10 km E of Alum Rock, CA
- 1.5 3 km E of Alameda, CA
- 1.6 2 km SE of Pacheco, CA
- 2.1 4 km SE of San Ramon, CA
- 1.8 4 km SW of Clayton, CA
- 1.5 7 km ESE of Fremont, CA
- 1.6 2 km WNW of Walnut Creek, CA
- 1.5 2 km NW of Concord, CA
- 2.4 2 km W of Concord, CA
- 2.1 4 km ESE of Union City, 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.