M4.3 earthquake - Izu Islands, Japan region

What happened

A magnitude 4.3 earthquake struck Izu Islands, Japan region on 21 Dec 2025, 09:36 UTC at a depth of 415 km.

Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was a deep earthquake; shaking at the surface is usually weak for its size.