explosion · reviewed by a seismologist
M 1.6ml
Earthquake near Sparks, NV
No earthquake was likely felt in Sparks in the 24 hours to 1:22 pm PST (21:22 UTC). The last one was M 2.3, 11 km (7 mi) WSW, at 11:07 pm PDT on 10 October 2026, estimated intensity II (weak) in town; 7 felt reports to USGS. Every earthquake near Sparks
No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.6 explosion was recorded 11 km (7 mi) east of Sparks, NV, at 4:13 pm PDT on 11 August 2025 (23:13 UTC), less than 1 km deep. 1 person has reported feeling it to USGS.
USGS: 11 km E of Sparks, Nevada
20 km (12 mi) E of Reno, NV · 10 km (6 mi) SE of Sparks, NV
- When
- 4:13 pm PDT on 11 August 2025 ()
- Where
- 11 km (7 mi) east of Sparks, NV · earthquakes near Sparks
- Magnitude
- M 1.6 (ml)
- Depth
- 0.0 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Storey County, 13 km SE
- Nearest mapped fault
- Northern Virginia Range fault, 2 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 195 days ago
Earthquake alerts for Sparks, NV
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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 11 km (7 mi) from the epicentre. In Sparks, 11 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: Sun Valley, Spanish Springs, Reno, Golden Valley, Lemmon Valley, Mogul.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.6 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 2020-03-21 — about 22,000 times the energy of this one.
Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:
- 6.4 Near Fernley, Nevada · 23 km E of this epicentre
- 6.1 22 km SSE of Stagecoach, Nevada · 46 km SE of this epicentre
- 6.0 Near Reno, Nevada · 16 km W of this epicentre
- 6.0 6 km WNW of Verdi, California · 40 km W of this epicentre
- 5.5 7 km N of Wadsworth, Nevada · 34 km NE 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 39.5238, -119.6204. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Storey County, NV | 13 km (8 mi) | SE | earthquakes near Storey County |
| Carson City, NV | 43 km (26 mi) | SSW | earthquakes near Carson City |
| Lyon County, NV | 67 km (41 mi) | SSE | earthquakes near Lyon County |
| Douglas County, NV | 69 km (43 mi) | S | earthquakes near Douglas County |
| Sierra County, CA | 78 km (48 mi) | W | earthquakes near Sierra County |
| Alpine County, CA | 101 km (63 mi) | S | earthquakes near Alpine County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
34 earthquakes have been recorded within 50 km since this one.
- 1.7 6 km N of Carson City, Nevada
- 1.5 8 km SSW of Dayton, Nevada
- 1.8 6 km N of Carson City, Nevada
- 2.0 9 km E of Sparks, Nevada
- 1.7 7 km N of Carson City, Nevada
- 2.2 10 km N of Stagecoach, Nevada
- 1.7 9 km NNW of Stagecoach, Nevada
- 1.8 9 km NNW of Stagecoach, Nevada
- 1.9 12 km SSE of Mogul, Nevada
- 1.6 12 km SSE of Mogul, Nevada
- 1.6 18 km NW of Stagecoach, Nevada
- 1.5 15 km SSE of Silver Springs, Nevada
- 2.4 6 km SW of Cold Springs, NV
- 1.5 4 km ENE of Spanish Springs, Nevada
- 1.7 8 km SSW of Dayton, Nevada
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.