M4.0 Earthquake in the Izu Islands, Japan region — April 23, 2026
2026-04-23 22:10:37 UTC (1 day ago)
On April 23, 2026 at 22:10 UTC, a magnitude 4.0 deep-focus earthquake struck in the Izu Islands, Japan region, at a depth of 415.8 km and coordinates 29.8133°, 138.8082°.
Earthquake Details
138.8082°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake in the Izu Islands, Japan region?
The magnitude 4.0 earthquake that struck in the Izu Islands, Japan region on April 23, 2026 at 22:10 UTC had a depth of 415.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.
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.
Actions
Location
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.