M 5.2 Moderate Earthquake Strikes 55 km NNW of Hirara, Japan

Earthquakes medium USGS · · Japan

A magnitude 5.2 earthquake occurred near Hirara, Japan, at a shallow depth of 10 km on March 21, 2026. No tsunami advisory has been issued.

What Happened

A moderate earthquake with a magnitude of 5.2 mb was recorded 55 km NNW of Hirara, Japan. The seismic event occurred on March 21, 2026, at 02:54:52 UTC. The earthquake was measured at a shallow depth of 10 kilometers.

Location Details

The earthquake was centered at coordinates 25.2336°N and 125.0287°E, approximately 55 kilometers north-northwest of Hirara. A depth of 10 kilometers is classified as a shallow earthquake. Shallow earthquakes (less than 20km deep) are often felt more strongly on the surface than deeper events of the same magnitude.

Impact Assessment

At the time of this report, there are no felt reports recorded by the USGS. According to the source data, there is no tsunami advisory, watch, or warning in effect (tsunami status: 0). No specific alert level color has been assigned to this event, and the status is currently listed as reviewed.

What You Should Know

A magnitude 5.2 event is classified as a “moderate earthquake.” While earthquakes of this size can cause damage to poorly constructed buildings, well-built structures typically sustain little to no damage. Residents in the region should remain aware of the possibility of aftershocks, which are routine following an event of this magnitude.

Source

Information provided by the USGS Earthquake Hazards Program.

Source: USGS Official Notice