Underwater volcano in Pacific explodes in violent eruption

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The Hunga-Tonga-Hunga-Ha’apai volcano first erupted Friday, sending a plume of ash 20 kilometers (12.4 miles) into the air, according to CNN affiliate Radio New Zealand (RNZ).
A second eruption hit on Saturday at 5:26pm local time, RNZ reported.
Satellite image shows a massive ash cloud and shockwaves spreading from the eruption. Tidal waves from the eruption crossed the shoreline of Tonga’s capital, Nuku’alofa, flowing onto coastal roads and flooding properties, according to RNZ.
The volcano is located about 30 kilometers (18.6 miles) southeast of Tonga’s Fonuafo’ou island, according to RNZ.
Tonga’s Meteorological Services issued advisories for heavy rain, flash flooding and strong winds in lands and coastal waters.
Nearby, New Zealand’s official weather service said its weather stations across the country had observed “a pressure surge” on Saturday evening from the eruption.
The volcano had been active from December 20, but was declared dormant on January 11, according to RNZ.

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