Moderate M 5.3 Earthquake Strikes Near Houma, Tonga

What Happened

A moderate earthquake with a magnitude of 5.3 (mww) was recorded on March 8, 2026, at 07:18:34 UTC. The seismic event was centered approximately 157 km west-southwest of Houma, Tonga.

Location Details

The earthquake’s epicenter was located at coordinates 21.8623°S and 176.6279°W. The event originated at a depth of 200.1 km. According to geological standards, this is classified as a deep earthquake, as it occurred at a depth greater than 70 km. Deep-focus earthquakes typically cause less intense shaking at the surface than shallow events of the same magnitude, though they can be felt over a wider geographic area.

Impact Assessment

Based on the current data from the USGS, there is no tsunami advisory, watch, or warning in effect for this event (tsunami: 0). No felt reports have been officially recorded in the source data at this time, and there are no immediate reports of damage or injuries. No specific alert level color has been assigned to this event.

What You Should Know

A magnitude 5.3 event is classified as a “moderate earthquake.” Such events can cause damage to poorly constructed buildings but typically result in light to no damage in well-engineered structures. Residents in the region should be aware that aftershocks are a possibility following seismic activity of this magnitude. In the event of further shaking, safety officials recommend that you ‘Drop, Cover, and Hold On.‘

Source

Information provided by the USGS Earthquake Hazards Program.