Earthquake · reviewed by a seismologist
M 2.6md
Earthquake near Granite Bay, CA
No earthquake was likely felt in Granite Bay in the 24 hours to 2:54 am PST (10:54 UTC). The last one was M 1.8, in Granite Bay, at 1:44 am PDT on 14 July 2026, estimated intensity II (weak) in town. Every earthquake near Granite Bay
This page: a magnitude 2.6 earthquake was recorded in Granite Bay, CA, at 6:35 pm PDT on 28 April 2026 (01:35 UTC), 9.9 km deep. 831 people have reported feeling it to USGS.
USGS: 2 km NW of Granite Bay, CA
7 km (5 mi) ESE of Rocklin, CA · 34 km (21 mi) NE of Sacramento, CA
- When
- 6:35 pm PDT on 28 April 2026 ()
- Where
- in Granite Bay, CA · earthquakes near Granite Bay
- Magnitude
- M 2.6 (md)
- Depth
- 9.9 km below the surface
- Felt
- 831 reports · strongest reported intensity III
- Nearest
- Sacramento County, 39 km SSW
- Nearest mapped fault
- Foothills fault system, 12 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 124 days ago
Earthquake alerts for Granite Bay, CA
Get a notification in this browser when USGS records an earthquake near Granite Bay, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 22 km (14 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.
Earthquakes near other towns within 30 km: Loomis, Rocklin, Roseville, Folsom, Newcastle, Orangevale.
How big was it?
This earthquake released about 280 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 55,000× the energy of this one
- Magna, Utah 2020 M 5.7 39,000× the energy of this one
- Around the size people start to feel M 3.0 3.5× the energy of this one
- This earthquake M 2.6 about 280 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
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
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 38.7750, -121.1750. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Sacramento County, CA | 39 km (24 mi) | SSW | earthquakes near Sacramento County |
| Placer County, CA | 50 km (31 mi) | NE | earthquakes near Placer County |
| Sutter County, CA | 54 km (34 mi) | WNW | earthquakes near Sutter County |
| El Dorado County, CA | 56 km (35 mi) | E | earthquakes near El Dorado County |
| Yuba County, CA | 57 km (35 mi) | NNW | earthquakes near Yuba County |
| Amador County, CA | 58 km (36 mi) | SE | earthquakes near Amador County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
3 earthquakes have 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.
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.