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M1.8 Earthquake near 10 km E of Alum Rock, CA

UTC time: 2026-04-02 13:31:53 UTC Local time: —
Magnitude
M1.8
Depth
3.3 km
Source
USGS

10 km E of Alum Rock, CA

Map

About this earthquake

On April 2, 2026 at 13:31 UTC, a magnitude M1.8 earthquake occurred near 10 km E of Alum Rock, CA. The hypocenter lay relatively close to the surface at around 3 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks.

Details

ID
4738027d8102729f6cdd23550abab01f05231d51
Magnitude
M1.8
Depth
3.3 km
UTC time
2026-04-02 13:31:53 UTC
Local time
—
Country
—
Source
usgs
Coordinates
37.35283, -121.71800
Temperature
5.8°C

Depth profile

Depth profile Depth: 3.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.3 km
Shallow
3.3 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

  • Clear Lake Volcanic Field
    Distance: 202 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mammoth Mountain
    Distance: 239 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 242 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 247 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Soda Lakes
    Distance: 346 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Lassen Volcanic Center
    Distance: 350 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Mineta San Jose International AirportUnited States · SJC · KSJC
    18.7 kmStraight-line distance

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

Nuclear power plants

  • Vallecitos nuclear power plantUnited StatesPermanently shut downReactor units at site: 1
    30.6 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

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

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Stats (last 24h)

Global (24h)
620
Country (24h)
—
—
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