Moderate M 5.0 Earthquake Recorded South of Koshima, Japan

What Happened

A moderate earthquake with a magnitude of 5.0 (mww) occurred on February 12, 2026, at 02:27:46 UTC. The seismic event was recorded by the USGS and is classified as a moderate earthquake, which typically indicates the potential for noticeable shaking.

Location Details

The epicenter was located approximately 114 km south of Koshima, Japan, at coordinates 29.2111°N and 130.6669°E. The earthquake originated at a depth of 22.742 km. This is considered an intermediate-depth earthquake, as it occurred between 20 and 70 km below the surface.

Impact Assessment

According to the USGS, there has been at least 1 felt report associated with this event, with a Community Decimal Intensity (CDI) of 2.2. There is currently no tsunami advisory, watch, or warning in effect (tsunami: 0). No specific alert level color was assigned to this event in the source data.

What You Should Know

Moderate earthquakes of this magnitude (M 5.0-5.9) are capable of causing damage to poorly constructed buildings, though well-built structures usually sustain little to no damage. Residents in the region should remain aware of the possibility of aftershocks, which are common following events of this size.

Source

Information provided by the USGS Earthquake Hazards Program.