Lupa Kata Sandi? Klik di Sini

atau Masuk melalui

Belum Memiliki Akun Daftar di Sini


atau Daftar melalui

Sudah Memiliki Akun Masuk di Sini

Konfirmasi Email

Kami telah mengirimkan link aktivasi melalui email ke rudihamdani@gmail.com.

Klik link aktivasi dan dapatkan akses membaca 2 artikel gratis non Laput di koran dan Majalah Tempo

Jika Anda tidak menerima email,
Kirimkan Lagi Sekarang

Tsunami Caused by Collapsed Section of Mount Anak Krakatau

25 December 2018 09:02 WIB

Aerial images of the Anak Krakatau valcano activity which spewed volcanic ash eruption on Sunday, December 23, 2018. A tsunami killed at least 222 people and injured hundreds on the Indonesian islands of Java and Sumatra following an underwater landslide believed to have been caused by the erupting Anak Krakatau volcano, officials said on Sunday. Tempo/Syaiful Hadi

TEMPO.CO, Jakarta - Head of the eastern region volcano mitigation at the Volcanology and Geological Disaster Mitigation Center (PVMBG) Devy K. Syahbana said that Mount Anak Krakatau`s recent Surtseyan eruption was eerily similar to the 1927-1928 incident which also caused a tsunami.

“At the time, report shows that a tsunami also took place,” said Devy on Monday, December 24.

The mountain’s volcanic eruption change was further explained by PVMBG volcano mitigation head Wawan Irawan who said that mount Anak Krakatau has transformed from a strombolian to a Surtseyan type of eruption.

“The eruption is different now. It used to be a strombolian, like a fountain, but now it’s a Surtseyan,” said Wawan.

Read also: BMKG Clarifies Issue of 5-Magnitude Quake Before Tsunami

According to Wawan, one of the causes that changed its type of eruption is the mountain’s main natural structure which partially collapsed that eventually triggered the tsunami on Saturday.

“One of the causes of the tsunami was one of the mountain’s section that suddenly collapsed and saw its materials avalanche into the ocean, which eventually created the tsunami,” Wawan explained.

The volcanic eruption change was heavily influenced by the fact that Mount Anak Krakatau itself was built by lava and pyroclastic flows of loose earth materials. The instability of its core could have separated because of the heavy flow of lava on top of it.

The PVMBG seismic detector that was installed at the Mount Anak Krakatau had died on Saturday, December 22, which is believed to be destroyed by the eruption combined with the suspected collapse of one of the mountain’s section.

AHMAD FIKRI (CONTRIBUTOR)



PVMBG Warns Local Residents of Mount Karangetang's Hot Clouds

39 hari lalu

PVMBG Warns Local Residents of Mount Karangetang's Hot Clouds

PVMBG warns local residents of the hot clouds coming out from Mount Karangetang in Sitaro Islands District, North Sulawesi province, Indonesia.


Eruptions at Mount Ile Lewotolok Increase, But Seismic Energy Drops: PVMBG

39 hari lalu

Eruptions at Mount Ile Lewotolok Increase, But Seismic Energy Drops: PVMBG

Mount Ile Lewotolok in East Nusa Tenggara experienced a significant increase in eruptions during the first half of February, PVMBG says.


Mount Semeru Experiences Hundreds of Seismic Activities in Single Day: Observer

46 hari lalu

Mount Semeru Experiences Hundreds of Seismic Activities in Single Day: Observer

Mount Semeru experienced hundreds of seismic activities on February 9, with eruption tremors accounting for 77 of the total activities detected.


North Maluku's Mount Dukono Erupts, Ejecting Volcanic Ash 4,000 Meters High

3 Januari 2024

North Maluku's Mount Dukono Erupts, Ejecting Volcanic Ash 4,000 Meters High

Mount Dukono in North Maluku erupted this morning, January 3, sending volcanic ash as high as approximately 4,000 meters into the air.


Foreign Ministry: No Indonesian Citizens Killed in Japan Earthquake

2 Januari 2024

Foreign Ministry: No Indonesian Citizens Killed in Japan Earthquake

The Indonesian Ministry of Foreign Affairs reported that until Tuesday, no Indonesian nationals were killed during the Japan earthquake.


South Korea Protests Japan's Tsunami Warning Over Disputed Islets

2 Januari 2024

South Korea Protests Japan's Tsunami Warning Over Disputed Islets

Officials in Seoul said on Tuesday that the tsunami warning featured a map displaying a group of islets also claimed by South Korea.


Japan Earthquake: BMKG Says Indonesia's Coastal Areas Unlikely to be Affected by Tsunami

2 Januari 2024

Japan Earthquake: BMKG Says Indonesia's Coastal Areas Unlikely to be Affected by Tsunami

The BMKG said that the earthquake of preliminary magnitude 7.6 that struck central Japan is not likely to affect Indonesia's coastal areas.


Japan Earthquake: Indonesians in Affected Regions Urged to Stay Alert

2 Januari 2024

Japan Earthquake: Indonesians in Affected Regions Urged to Stay Alert

The Indonesian Embassy in Tokyo and the Indonesian Consulate General in Osaka have urged Indonesians to stay alert after an earthquake in Japan.


Powerful Earthquake Slams Japan, Residents Flee Some Coastal Areas

1 Januari 2024

Powerful Earthquake Slams Japan, Residents Flee Some Coastal Areas

A powerful earthquake struck central Japan on Monday, January 1, killing at least one person.


Former President SBY to Attend Tsunami Memorial in Aceh Today

26 Desember 2023

Former President SBY to Attend Tsunami Memorial in Aceh Today

Indonesia's former president Susilo Bambang Yudhoyono, or SBY will attend the 19th anniversary of the Aceh Tsunami in Aceh today.