sonic boom · reviewed by a seismologist
M 2.8md
Earthquake near Gold River, CA
No earthquake was likely felt in Gold River in the 24 hours to 8:15 pm PST (04:15 UTC). The last one was M 5.6, 190 km (118 mi) WNW, at 8:10 am PDT on 24 June 2026, estimated intensity II (weak) in town; 5,311 felt reports to USGS. Every earthquake near Gold River
No: USGS classifies this as a sonic boom, not an earthquake. A magnitude 2.8 sonic boom was recorded 2 km (1 mi) south-southeast of Gold River, CA, at 7:48 am PDT on 2 June 2017 (14:48 UTC), less than 1 km deep. 1 person has reported feeling it to USGS.
USGS: 2 km SSE of Gold River, California
21 km (13 mi) ENE of Sacramento, CA · in Rancho Cordova, CA
- When
- 7:48 am PDT on 2 June 2017 ()
- Where
- 2 km (1 mi) south-southeast of Gold River, CA · earthquakes near Gold River
- Magnitude
- M 2.8 (md)
- Depth
- -0.3 km below the surface
- Felt
- 1 report · strongest reported intensity III
- Nearest
- Sacramento County, 20 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 619 days ago
Earthquake alerts for Gold River, 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 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 26 km (16 mi) from the epicentre. In Gold River, 2 km away, the estimate is intensity III (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: Fair Oaks, Rancho Cordova, Orangevale, Carmichael, Folsom, Citrus Heights.
USGS catalogues this as sonic boom, not an earthquake.
How big was it?
This earthquake released about 420 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 36,000× the energy of this one
- Magna, Utah 2020 M 5.7 26,000× the energy of this one
- Around the size people start to feel M 3.0 2.3× the energy of this one
- This earthquake M 2.8 about 420 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 38.6105, -121.2340. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Sacramento County, CA | 20 km (13 mi) | SSW | earthquakes near Sacramento County |
| Amador County, CA | 54 km (33 mi) | ESE | earthquakes near Amador County |
| Yolo County, CA | 59 km (36 mi) | W | earthquakes near Yolo County |
| Sutter County, CA | 62 km (39 mi) | NW | earthquakes near Sutter County |
| El Dorado County, CA | 64 km (40 mi) | ENE | earthquakes near El Dorado County |
| Placer County, CA | 67 km (42 mi) | NE | earthquakes near Placer County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
18 earthquakes have been recorded within 50 km since this one.
- 1.8 1 km WSW of Granite Bay, CA
- 1.8 6 km WNW of Ione, CA
- 2.1 2 km WSW of Granite Bay, CA
- 2.6 2 km NW of Granite Bay, CA
- 2.5 12 km WSW of Lincoln, CA
- 2.3 13 km NNE of Rio Linda, CA
- 2.8 11 km WSW of Lincoln, CA
- 2.2 13 km WSW of Lincoln, CA
- 2.1 12 km NW of Roseville, CA
- 1.8 11 km SW of Lincoln, CA
- 2.2 12 km WSW of Lincoln, CA
- 2.2 8km N of West Sacramento, CA
- 1.9 8km WNW of Ione, CA
- 2.2 10km ENE of Clay, CA
- 1.9 10km WNW of Laguna West-Lakeside, 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.