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United States · California

M2.3 Earthquake near Mono County, California (United States)

UTC time: 2026-09-20 04:48:05 UTC Local time: —

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About this earthquake

On September 20, 2026 at 04:48 UTC, a magnitude M2.3 earthquake occurred near Mono County, California (United States). With a focal depth of about 4 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 198 earthquakes, the strongest at M5.3.

Details

ID
9b9060950d18f138fc73537ee3cbb8b5890578ab
Magnitude
M2.3
Depth
4.5 km
UTC time
2026-09-20 04:48:05 UTC
Local time
—
Country
United States
State
California
City
Mono County
County
Mono County
Source
usgs
Coordinates
37.49217, -118.75983
Temperature
6.1°C

Depth profile

Depth profile Depth: 4.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4.5 km
Shallow
4.5 km
4.5 km — shallower than the regional average (15.2 km)
Regional average: 15.2 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

  • Mammoth Mountain
    Distance: 29 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 42 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 61 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Ubehebe Craters
    Distance: 127 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Soda Lakes
    Distance: 226 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Clear Lake Volcanic Field
    Distance: 387 km ·Volcanic field ·Elevation: 1'439 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Mammoth Yosemite AirportUnited States · MMH · KMMH
    16.5 kmStraight-line distance
  • Eastern Sierra Regional AirportUnited States · BIH · KBIH
    37.4 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-20

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

California

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 2.0 · 2,417 Catalogue entries

Of 2,416 other entries for this area and period, 1,232 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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

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