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Russia · Sakhalin Oblast

M4.0 Earthquake near Yuzhno-Kurilsky District, Sakhalin Oblast (Russia)

UTC time: 2026-07-21 02:25:30 UTC Local time: —
Magnitude
M4.0
Depth
80.0 km
Source
EMSC

Sakhalin Oblast · Yuzhno-Kurilsky District

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Map

M4.0 Earthquake near Yuzhno-Kurilsky District, Sakhalin Oblast (Russia) · 2026-07-21 — Map showing the location of the epicenter
M4.0 Earthquake near Yuzhno-Kurilsky District, Sakhalin Oblast (Russia) · 2026-07-21 — Map showing the location of the epicenter

About this earthquake

On July 21, 2026 at 02:25 UTC, a magnitude M4.0 earthquake occurred near Yuzhno-Kurilsky District, Sakhalin Oblast (Russia). At around 80 km, the focal depth places this among intermediate-depth events. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by EMSC.

Depth profile

Depth profile Depth: 80 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 80 km
Intermediate
80 km
80 km — deeper than the regional average (49.7 km)
Regional average: 49.7 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Raususan [Mendeleev]
    Distance: 75 km ·Stratovolcano ·Elevation: 882 m ·Last eruption: 1880 ·Japan - administered by Russia
  • Tomariyama [Golovnin]
    Distance: 75 km ·Caldera ·Elevation: 535 m ·Last eruption: 1848 ·Japan - administered by Russia
  • Chachadake [Tiatia]
    Distance: 106 km ·Stratovolcano ·Elevation: 1'772 m ·Last eruption: 1981 ·Japan - administered by Russia
  • Tenchozan
    Distance: 115 km ·Crater rows ·Elevation: 1'046 m ·Japan
  • Rausudake
    Distance: 115 km ·Stratovolcano ·Elevation: 1'660 m ·Last eruption: 1800 ·Japan
  • Shiretoko-Iozan
    Distance: 117 km ·Stratovolcano ·Elevation: 1'562 m ·Last eruption: 1936 ·Japan

Russia

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 326 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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