Coastal residents near Indonesia's Anak Krakatau volcano have been warned to keep away from beaches amid fears it could trigger a new tsunami.
Coastal residents near Indonesia's Anak Krakatau volcano have been warned to keep away from beaches amid fears it could trigger a new tsunami. PIX: via BBC

INDONESIA – Coastal residents near Indonesia’s Anak Krakatau volcano have been warned to keep away from beaches amid fears it could trigger a new tsunami.

On Saturday, giant waves crashed into coastal towns on the islands of Sumatra and Java, killing at least 222 people and injuring 843.

It is thought that volcanic activity set off undersea landslides which in turn generated the killer waves.

Anak Krakatau was erupting again on Sunday, spewing ash and smoke.

Video shot from a charter plane captured the magnitude of the event in the Sunda Strait, between Sumatra and Java.

President Joko Widodo has expressed his sorrow for the victims and urged people to be patient.

Rescue efforts are being hampered by blocked roads but heavy lifting equipment is being transported to badly hit areas to help search for victims.

What warning was given?

The head of the National Disaster Management Agency, Sutopo Purwo Nugroho, held a news conference on Java.

“Recommendations from [the] Meteorology, Climatology and Geophysical Agency are that people should not carry out activities on the beach and stay away from the coast for a while,” he said.

“The potential for a fresh tsunami is still possible because the volcanic eruption of Anak Krakatau continues to occur, potentially triggering tsunami.”

Anak Krakatau, which formed in 1927 after the Krakatoa volcano eruption, has seen increased activity in recent months with people asked to avoid the area around its crater.

On Friday it erupted for two minutes and 12 seconds, creating an ash cloud that rose 400 metres above the mountain.

Why was Saturday’s tsunami so deadly?

It struck at 21:30 local time (14:30 GMT) during a local holiday, with few of the warning signals that might have come had it been generated by an earthquake.

Java Sumatra Indonesia vocanic tsunami

Seawater did not recede as in an earthquake tsunami and experts say that even if there had been warning buoys near the volcano, there would have been minimal alert time.

However, officials say a warning siren did go off in some areas, Reuters news agency reports.

The waves destroyed hundreds of buildings, sweeping away cars and uprooting trees in several popular tourist destinations including the Tanjung Lesung beach resort, west Java.

Footage shared on social media showed a large wave crashing into a tent in the resort, in which popular Indonesian rock band Seventeen was performing.

Members of the band were seen being swept away as the wave destroyed the stage.

Officials say more than 160 people were killed in Java’s Pandeglang tourist district.

On Sumatra, 48 were reported dead in South Lampung, and deaths were also reported in Serang district and Tanggamus.

So far, no foreign nationals have been reported dead, officials say. -BBC

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