Indonesian authorities asked people near an island volcano to stay away, while eruptions and weather and sea conditions were being monitored for tsunami risks.
Indonesia’s Meteorology, Geophysics and Climatology Agency asked people late on Tuesday to stay at least 500 meters (1,640 feet) from the Sunda Strait coastline.
Agency’s head Dwikorita Karnawati said government agencies were monitoring Anak Krakatoa’s eruptions and that high waves and heavy rain were possible Wednesday.
“All these conditions could potentially cause landslides at the cliffs of the crater into the sea, and we fear that that could trigger a tsunami,” she said at a news conference. She asked that communities remain vigilant but not panic.
Scientists have said the tsunami’s waves were recorded in several places at about 1 meter (3.3 feet) high, but residents of Sumur insisted they towered more than 3 meters (10 feet) there.