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M2.1 Depth: 6.5 km

M2.1 Earthquake near Grass Valley, Nevada (United States)

UTC time: 2026-04-23 00:54:30 UTC Local time: —

About this earthquake

A magnitude M2.1 earthquake was recorded near Grass Valley, Nevada (United States) on April 23, 2026 at 00:54 UTC. The hypocenter lay relatively close to the surface at around 7 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by EMSC. United States: 174 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude
M2.1
Depth
6.5 km
UTC time
2026-04-23 00:54:30 UTC
Local time
—
Country
United States
State
Nevada
City
Grass Valley
County
Humboldt County
Village
Grass Valley
Source
emsc
Coordinates
40.93920, -117.75790
Temperature
7.7°C

Map

Depth profile

Depth profile Depth: 6.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 6.5 km
Shallow
6.5 km
6.5 km — shallower than the regional average (15.8 km)
Regional average: 15.8 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Soda Lakes
    Distance: 184 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Jordan Craters
    Distance: 247 km ·Volcanic field ·Elevation: 1'473 m ·Last eruption: -1250 ·United States
  • Diamond Craters
    Distance: 254 km ·Volcanic field ·Elevation: 1'435 m ·Last eruption: -5610 ·United States
  • Lassen Volcanic Center
    Distance: 320 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Medicine Lake
    Distance: 326 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Mono Lake Volcanic Field
    Distance: 345 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States

Historic earthquake map · United States

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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