7.6-Magnitude Quake Rocks Neiafu In Tonga. Is Another 2022-Style Volcanic Eruption Possible?

Last Updated:March 24, 2026, 12:14 IST

This comes a day after Tonga's Hihifo was shaken by an earthquake of Magnitude 6.2. According to the USGS, the quake on Monday was at a depth of 79.7 km (49.52 miles).

A strong deep-focus earthquake hit near the Pacific island nation of Tonga, according to the U.S. Geological Survey (USGS), which reported the quake at a depth of around 238 km (148 miles) beneath the Earth’s surface.

The epicenter was situated approx 153 km from Neiafu, lying within a seismically active region along the Tonga Trench, one of the world’s most dynamic tectonic boundaries.

Although the quake’s significant depth means no immediate damage or tsunami threat has been reported, scientists warn that it fits a worrying pattern of seismic activity in the region.

This comes a day after Tonga’s Hihifo was shaken by an earthquake of Magnitude 6.2. According to the USGS, the quake on Monday was at a depth of 79.7 km (49.52 miles).

Seismologists are keeping a close watch on these events, as clusters like these—known as “earthquake swarms", can occasionally precede more significant quakes. While earthquakes cannot be predicted with certainty, experts warn that this pattern may indicate foreshock activity, suggesting stress buildup along major fault lines in the Pacific “Ring of Fire," India Today reported.

“The depth of this latest quake suggests it originated within the subducting Pacific Plate," researchers note, adding that deep earthquakes are typically less destructive at the surface but can indicate intense geological processes unfolding far below.

Region’s Recent Geological History

In January 2022, the Hunga Tonga-Hunga Ha’apai volcano nearby produced the largest volcanic eruption of the 21st century. The eruption sent shockwaves around the world and triggered tsunamis across the Pacific, dramatically altering parts of Tonga’s landscape and underscoring the volatile nature of the area’s interconnected tectonic and volcanic systems.

Scientists note that while earthquakes and volcanic eruptions do not always occur in tandem, both are fueled by the same tectonic forces.

The recent surge in seismic activity has sparked renewed discussion about the possibility of larger earthquakes or volcanic unrest. Authorities in Tonga and neighboring Pacific nations continue to monitor conditions closely.

Although there is no immediate threat, experts emphasize the need for preparedness in a region where powerful natural events can strike with little warning. As tremors continue beneath the ocean floor, the Pacific serves as a reminder of Earth’s restless and unpredictable character.

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