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Michelle, an elementary school student in East Nusa Tenggara province, was one of several in her school who suffered suspected food poisoning in February.

The eruptions in East Nusa Tenggara province are part of hot gas spills that have become more frequent in recent days.

People in neighboring provinces of East Java, Central Java, West Nusa Tenggara and East Nusa Tenggara provinces also felt the tremors and panicked as houses and buildings swayed for several seconds.

This has the potential to exacerbate drought in islands below the equator in the archipelago, which include Java - home to over 150 million people, as well as Bali and Nusa Tenggara.

The quake was felt weakly on land in some areas on East Nusa Tenggara but there were no immediate reports of damage, the agency said.