Earthquake · reviewed by a seismologist
M 1.8md
Earthquake near Dublin, CA
No earthquake was likely felt in Dublin in the 24 hours to 12:47 pm PST (20:47 UTC). The last one was M 1.9, 5 km (3 mi) SW, at 10:32 am PST on 2 November 2026, estimated intensity II (weak) in town. Every earthquake near Dublin
This page: a magnitude 1.8 earthquake was recorded in Dublin, CA, at 11:07 pm PDT on 9 May 2026 (06:07 UTC), 9.5 km deep. 1 person has reported feeling it to USGS.
USGS: 1 km ENE of Dublin, CA
in Dublin, CA · 46 km (29 mi) NNW of San Jose, CA
- When
- 11:07 pm PDT on 9 May 2026 ()
- Where
- in Dublin, CA · earthquakes near Dublin
- Magnitude
- M 1.8 (md)
- Depth
- 9.5 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Alameda County, 6 km S
- Nearest mapped fault
- Calaveras fault, 1 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 177 days ago
Earthquake alerts for Dublin, CA
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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 9 km (6 mi) from the epicentre. 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.
Likely felt in: Dublin in town, intensity II · Pleasanton 6 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 14 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 1,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 790,000× the energy of this one
- Around the size people start to feel M 3.0 70× the energy of this one
- This earthquake M 1.8 about 14 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 86,000 times the energy of this one.
Before 2016, the USGS record lists 9 earthquakes of M5 or more within 50 km; the five largest:
- 6.2 Near San Jose, California · 46 km SSE of this epicentre
- 6.2 The 1984 Morgan Hill, California Earthquake · 49 km SSE of this epicentre
- 5.8 The 1980 Livermore, California Earthquake · 20 km NE of this epicentre
- 5.7 15 km NE of East Foothills, California · 33 km SE of this epicentre
- 5.5 6 km NNE of East Foothills, California · 33 km SSE 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 37.7042, -121.9242. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Alameda County, CA | 6 km (4 mi) | S | earthquakes near Alameda County |
| Contra Costa County, CA | 24 km (15 mi) | N | earthquakes near Contra Costa County |
| San Mateo County, CA | 51 km (32 mi) | SW | earthquakes near San Mateo County |
| Santa Clara County, CA | 58 km (36 mi) | SSE | earthquakes near Santa Clara County |
| Solano County, CA | 63 km (39 mi) | N | earthquakes near Solano County |
| San Joaquin County, CA | 63 km (39 mi) | ENE | earthquakes near San Joaquin 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.
- 1.5 2 km SE of Pacifica, CA
- 1.5 3 km SE of Pacifica, CA
- 1.9 2 km ESE of Pacheco, CA
- 1.8 4 km S of Pittsburg, CA
- 1.8 2 km SW of Alamo, CA
- 1.9 6 km NE of Alamo, CA
- 2.0 12 km SE of Sunol, CA
- 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
- 1.6 2 km SSE of Pacifica, CA
- 2.3 2 km SE of Pacifica, CA
- 1.9 10 km E of Alum Rock, 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.