Is this the source of the mysterious boom in Jabodetabek?

The man who is familiarly called Mbah Rono said, this could occur due to the quiet atmosphere of Jakarta and Depok. So that the sound can be heard.

Sound can occur from the eruption of GAK,” he said.2 So why is the sound of thumping can be heard while at the nearest location the mountain doesn’t hear anything?Surono explained, this was due to the sound waves that reached an area. This can happen depending on the air pressure.It could be that the air pressure varies. If the explosion is not loud, early in the morning, if it is also not heard due to sleep or other activities can occur, “said Mbah Rono.

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Following is the explanation of Mbah Rono, a volcanologist.

A loud bang occurred on Saturday morning, April 11, 2020, in the Jakarta area to Depok. This incident made many residents’ glass windows vibrate.According to Surono, Volcanologist, Former Head of Geology Agency, Ministry of Energy and Mineral Resources (ESDM), the roar and thunder came from Mount Anak Krakatau (GAK). At the same time, the mountain in the Sunda Strait was experiencing an eruption.”When people hear the thump, along with the eruption of child krakatau / GAK. It can happen that the sound of thumping from GAK,” he said when contacted , today.

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The seconds of the Mysterious Booming Sound of Jabodetabek

The booming sound that was heard by residents in the Greater Jakarta area was certainly not the impact of the eruption of Mount Anak Krakatau, in the Sunda Strait. This was confirmed by the Center for Volcanology and Geological Disaster Mitigation (PVGMBG) on Saturday, April 11, 2020.Center (PVMBG) of the Geology Agency of the Ministry of Energy and Mineral Resources (ESDM) Kasbani told Liputan6.com in Jakarta .

He also confirmed through the Gunung Anak Krakatau Observation Post in Carita Market, Pandegang, Banten, which is 50 km away, that the eruption effect was too small and did not hear a bang at all.”The closest post is not even heard, let alone the more distant Jakarta,” he said.

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boom in Jabodetabek
Is this the source of the mysterious boom in Jabodetabek?

PVMBG reported the eruption of Mount Anak Krakatau, Lampung on April 10, 2020 at 22:35 local time with a high ash column up to 500 m above the peak or around 657 meters above sea level.

The ash column was observed to be gray with moderate to thick intensity and leaning north. This eruption has been recorded by seismogram with a maximum amplitude of 40 mm and a duration of approximately 38 minutes 4 seconds.Monitoring conducted by PVMBG said the eruption lasted until Saturday, April 11, 2020 at 05.44 WIB.Potential dangers reported by the PVMBG include lava material bursts, lava flows and heavy ash rain around the crater with a radius of 2km from the active crater. In addition, thin ash rain can be exposed to further areas depending on wind speed.Strombolian type eruption activity is only spread around the crater. Continuous eruption has the potential to occur, but no volcanic symptoms have been detected with greater eruption intensity.

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Citizens’ Testimony

Meanwhile, a resident of Pamulang, South Tangerang, Aditya said, he heard faint beeping from the west. The booming continued for an hour early this morning, Saturday, April 11, 2020. In fact, said Aditya, the door at his house had shaken.”Around 2:30 a.m. I was asleep near the faint door sounding thud, the door shook, my sister checked the door shakes alone even though there was no wind,” Aditya said  

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Coming from Lightning?

Then Aditya checked the top floor of his house and heard a faint thump from the west.”It was a long time until 3:30 a.m. WIB, sounded faint, stopped for a moment and then sounded again. I thought it was going to rain, but I saw a thud but no lightning. Sounded very far away,” said Aditya.

Meanwhile, Theo, a resident of Depok claimed to see lightning before the sound of thumping. Theo claimed to hear the boom only once.”There was lightning before the boom, I thought it was lightning, but the sound was somewhat different from lightning,” he said.

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