4.9

M4.9 Earthquake 206 km SSE of Vilyuchinsk, RussiaApril 23, 2026

2026-04-23 01:43:46 UTC (4 hours ago)

On April 23, 2026 at 01:43 UTC, a magnitude 4.9 shallow crustal earthquake struck 206 km SSE of Vilyuchinsk, Russia, at a depth of 10.0 km and coordinates 51.3012°, 159.8420°. This earthquake was detected by 44 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

The epicenter is located in Russia, a region characterized by the Kuril-Kamchatka subduction zone on the northwestern Pacific Ring of Fire. The nearest mapped fault system is the Kuril-Kamchatka Trench. View all earthquakes in Russia.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 51.30°, 159.84°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
51.3012°N
159.8420°E

Technical Information

Event ID
us6000ss8a
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
44
Azimuthal Gap
129.0°
Min Station Distance
2.239°
RMS Residual
1.32 sec
Last Updated
2026-04-23 02:15:03 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Vilyuchinsk, Russia?

The magnitude 4.9 earthquake that struck 206 km SSE of Vilyuchinsk, Russia on April 23, 2026 at 01:43 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 51.3012°, 159.8420°, which is 206 km SSE of Vilyuchinsk, Russia. View all earthquakes in Russia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Has Russia had earthquakes this big before?

The largest recorded earthquake in Russia was the M9.0 Kamchatka earthquake of November 4, 1952. Today's magnitude 4.9 event is significantly smaller than that historical record.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.