Earthquake · automatic estimate, may change
M 1.5ml
33 km SE of Mina, Nevada
Yes. A magnitude 1.5 earthquake was recorded 33 km SE of Mina, Nevada, at 5:20 am PST on 21 November 2020 (13:20 UTC), 7.0 km deep. The magnitude and location are an automatic first estimate and may change.
- When
- Magnitude
- M 1.5 (ml)
- Depth
- 7.0 km below the surface
- Felt
- no reports yet
- Nearest
- Esmeralda County, 48 km SSE
- Nearest mapped fault
- Benton Spring fault, 12 km from its surface trace — near is not the same as on
- Status
- Automatic — a machine’s first estimate, which may change
USGS · last changed by USGS · we first saw it 2182 days ago
Earthquake alerts for Tonopah, NV
Get a notification in this browser when USGS records an earthquake near Tonopah, NV. 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 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 7 km (4 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.
How big was it?
This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
- Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
- Around the size people start to feel M 3.0 180× the energy of this one
- This earthquake M 1.5 about 5.4 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 6.5 on 2020-05-15 — about 32,000,000 times the energy of this one.
Before 2016, the USGS record lists 18 earthquakes of M5 or more within 50 km; the five largest:
- 6.8 The 1932 Cedar Mountain, Nevada Earthquake · 49 km N of this epicentre
- 6.3 The 1934 Excelsior Mountains, Nevada Earthquake · 46 km WNW of this epicentre
- 6.1 Near Tonopah Junction, Nevada · 23 km SW of this epicentre
- 5.6 37 km N of Dyer, Nevada · 28 km SW of this epicentre
- 5.5 Near Tonopah Junction, Nevada · 23 km SW 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 38.1728, -117.8502. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Esmeralda County, NV | 48 km (30 mi) | SSE | earthquakes near Esmeralda County |
| Mineral County, NV | 62 km (39 mi) | NW | earthquakes near Mineral County |
| Mono County, CA | 94 km (59 mi) | WSW | earthquakes near Mono County |
| Lyon County, NV | 150 km (93 mi) | NW | earthquakes near Lyon County |
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.
- 1.5 28 km SSE of Mina, Nevada
- 1.6 35 km SE of Mina, Nevada
- 1.7 28 km SE of Mina, Nevada
- 2.4 30 km SSE of Mina, Nevada
- 1.5 34 km SE of Mina, Nevada
- 1.9 31 km S of Mina, Nevada
- 1.7 34 km SE of Mina, Nevada
- 1.5 33 km SE of Mina, Nevada
- 1.9 33 km SE of Mina, Nevada
- 2.0 33 km SE of Mina, Nevada
- 2.6 33 km SE of Mina, Nevada
- 1.8 30 km SSE of Mina, Nevada
- 1.6 28 km SSE of Mina, Nevada
- 1.6 30 km SE of Mina, Nevada
- 1.6 30 km SSE of Mina, 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.