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M2.1 Depth: 20.5 km

M2.1 Earthquake near Humboldt County, California (United States)

UTC time: 2026-02-28 19:41:06 UTC Local time: —

About this earthquake

On February 28, 2026 at 19:41 UTC, a magnitude M2.1 earthquake occurred near Humboldt County, California (United States). With a focal depth of about 21 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by EMSC and cross-checked across seismological networks. United States: 165 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.

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Depth profile

Depth profile Depth: 20.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20.5 km
Shallow
20.5 km
20.5 km — deeper 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

  • Shasta
    Distance: 194 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Clear Lake Volcanic Field
    Distance: 196 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 219 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Medicine Lake
    Distance: 251 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Escanaba Segment
    Distance: 294 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Jackson Segment
    Distance: 314 km ·Fissure vent(s) ·Elevation: -3'100 m ·United States

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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