Back to map
M0.4 Depth: 12.5 km

M0.4 Earthquake near San Juan County, Washington (United States)

UTC time: 2026-07-21 19:49:55 UTC Local time: —

About this earthquake

A magnitude M0.4 earthquake was recorded near San Juan County, Washington (United States) on July 21, 2026 at 19:49 UTC. The hypocenter lay relatively close to the surface at around 12 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 240 earthquakes were recorded in the past 24 hours, the strongest reaching M4.3.

Map

Depth profile

Depth profile Depth: 12.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.5 km
Shallow
12.5 km
12.5 km — close to the regional average (15.5 km)
Regional average: 15.5 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

  • Baker
    Distance: 92 km ·Stratovolcano(es) ·Elevation: 3'285 m ·Last eruption: 1880 ·United States
  • Garibaldi
    Distance: 136 km ·Stratovolcano ·Elevation: 2'678 m ·Last eruption: -8060 ·Canada
  • Garibaldi Lake
    Distance: 145 km ·Volcanic field ·Elevation: 2'316 m ·Canada
  • Glacier Peak
    Distance: 154 km ·Stratovolcano ·Elevation: 3'213 m ·Last eruption: 1700 ·United States
  • Cayley Volcanic Field
    Distance: 166 km ·Volcanic field ·Elevation: 2'375 m ·Canada
  • Rainier
    Distance: 220 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States

Historic earthquake map · United States

Open history map
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.

Share