A strong and deep earthquake registered by the USGS as M6.3 popped-off near the coast of Ambae, Vanuatu at 15:23 UTC on March 20. The agency is reporting a depth of 119 km (74 miles).
The epicenter was located 52 km (32.3 miles) ESE of Luganville (population 13,397).
Some 120,000 people are estimated to be living within 100 km (62 miles).
No tsunami warnings were issued.
Seismic and Volcanic activity has been correlated to changes in our sun.
The recent global uptick in earthquakes and volcanic eruptions is likely attributed to the drop-off in solar activity, coronal holes, a waning magnetosphere, and the increase in Galactic Cosmic Rays penetrating silica-rich magma.
Check out these link for more info:
Grand Solar Minimum + Pole Shift