Sunday 17 January 2021

Semeru volcano on Indonesia's Java island spews hot clouds

JANUARY 16, 2021
https://phys.org/news/2021-01-semeru-volcano-indonesia-java-island.html

In this photo released by Indonesia's National Disaster Mitigation Agency (BNPB) Mount Semeru spews volcanic material during an eruption in Lumajang, East Java, Indonesia, Saturday, Jan. 16, 2021. The highest volcano on Indonesia's most densely populated island of Java, spewed hot clouds as far away as 4.5 kilometers (nearly 3 miles) on Saturday.
 (National Disaster Mitigation Agency via AP)

Mount Semeru, the highest volcano on Indonesia's most densely populated island of Java, spewed hot clouds as far away as 4.5 kilometers (nearly 3 miles) on Saturday.

There were no immediate evacuations, but the National Disaster Mitigation Agency warned people who live in the villages on the slopes of the 3,676-meter (12,060-foot)-high mountain to be vigilant in looking for signs of danger.

Agency spokesperson Raditya Jati said that people around the river basin on the slopes of the mountain should beware of high rainfall intensity that can trigger lava floods.

Indonesia's Volcanology and Geological Hazard Mitigation Center did not raise Semeru's alert status, which already had been at the third-highest level since it began erupting in May. The volcano spewed hot ash for 3,000 meters (9,800 feet) in early December, triggering panic among villagers.

Indonesia, an archipelago of more than 250 million people, sits on the Pacific "Ring of Fire" and is prone to earthquakes and volcanic eruptions. Government seismologists monitor more than 120 active volcanoes.

A strong earthquake shook Indonesia's Sulawesi island early Friday, killing at least 46 people.

In this photo released by Indonesia's National Disaster Mitigation Agency (BNPB) Mount Semeru spews volcanic material during an eruption in Lumajang, East Java, Indonesia, Saturday, Jan. 16, 2021. The highest volcano on Indonesia's most densely populated island of Java, spewed hot clouds as far away as 4.5 kilometers (nearly 3 miles) on Saturday.
 (National Disaster Mitigation Agency via AP)

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https://youtu.be/B_r2__fVBt4

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List of explosions from Sakurajima Japan

Date and time (UTC) Time UTC Elevation of ash cloud Source   
 (Japan time JST = UTC+09:00)    
Y.  VA: I (ash plume obs.) unknown VAAC  
16 Jan 16:19 (explosion) 9.000 ft (2.7 km) VAAC  
 16:19 (explosion) 6.000 ft (1.8 km) VAAC  
Y.  VA: I (ash plume obs.) unknown VAAC  
0Z  VA: E (ash plume obs.) unknown VAAC  
15 Jan 01:59 (explosion) 7.000 ft (2.1 km) VAAC  
14 Jan 22:08 (explosion) 7.000 ft (2.1 km) VAAC  
13 Jan 02:28 (explosion) 7.000 ft (2.1 km) VAAC  
 02:28 (explosion) 6.000 ft (1.8 km)




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