29km SSW of Smith Valley, NV

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 14 km (9 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: Topaz Ranch Estates, Smith Valley.

How big was it?

This earthquake released about 17 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.

1. Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
2. Magna, Utah 2020 M 5.7 620,000× the energy of this one
3. Around the size people start to feel M 3.0 55× the energy of this one
4. This earthquake M 1.8 about 17 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 6.0 on 2021-07-08 — about 1,700,000 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

1. 6.1 4 km S of Carter Springs, Nevada · 37 km NNW of this epicentre Sep 12, 1994
2. 5.2 23 km S of Walker, California · 27 km SSW of this epicentre Dec 19, 1919
3. 5.1 23 km E of Bridgeport, California · 49 km SE of this epicentre Dec 31, 1956
4. 5.1 19 km W of Bridgeport, California · 35 km S of this epicentre Apr 13, 1962
5. 5.1 8 km ESE of Mesa Vista, California · 36 km NW of this epicentre Sep 12, 1994

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 38.5340, -119.4265. Map © OpenStreetMap contributors.

Nearby places

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

60 earthquakes have been recorded within 50 km since this one.

1. 1.6 28km SSW of Smith Valley, NV 04:43 UTC
2. 1.6 32km SSW of Smith Valley, NV 04:30 UTC
3. 1.7 29km SSW of Smith Valley, NV 04:21 UTC
4. 2.2 29km SSW of Smith Valley, NV 04:19 UTC
5. 2.3 28km SSW of Smith Valley, NV 04:18 UTC
6. 1.7 29km SSW of Smith Valley, NV 04:17 UTC
7. 2.1 29km SSW of Smith Valley, NV 04:06 UTC
8. 2.4 28km SSW of Smith Valley, NV 04:05 UTC
9. 2.4 28km SSW of Smith Valley, NV 04:01 UTC
10. 2.1 29km SSW of Smith Valley, NV 03:55 UTC
11. 3.9 28km SSW of Smith Valley, NV 03:46 UTC
12. 2.2 26km SSW of Smith Valley, NV 03:45 UTC
13. 1.6 32km NW of Bridgeport, CA 03:18 UTC
14. 1.5 32km ENE of Dardanelle, CA 02:13 UTC
15. 1.5 29km SE of Markleeville, CA 00:33 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 17:19 UTC. 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.