Banten Earthquake; 14 Aftershocks Not Coming from Megathrust Zone: BMKG
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10 May 2023 21:53 WIB
TEMPO.CO, Jakarta - The Meteorology, Climatology, and Geophysics Agency’s (BMKG) head of the earthquake and tsunami center Daryono confirmed that the quake in Banten at 11:24:49 local time today, May 10, was triggered by active seabed fault activity in the Sunda Strait.
“It occurred at a shallow depth of 10 kilometers and is not a megathrust quake. It is suspected that the trigger was the Ujung Kulon Fault,” Daryono informed via text message, Wednesday.
The results of the agency’s analysis of the source indicated that the event had a strike-slip mechanism.
The agency detected its epicenter at coordinates 6.49° South Latitude and 104.84° East Longitude, or precisely in the sea, at a distance of 84 kilometers northwest of Sumur, Banten.
The shaking was felt in Pandeglang with an intensity scale of III MMI and in Sukabumi, Lebak, Serang, and Cilegon at an intensity scale of II-III MMI. Weaker intensity at II MMI was also reported in South Tangerang and Bogor areas.
Daryono stated that he has not yet received any reports of damage caused by the quake. The BMKG had also announced that it did not have the potential to trigger a tsunami.
As of 17:30 Western Indonesian Time (WIB), BMKG logged 14 aftershocks at a magnitude of around 2.5 to 4.5. Four of them occurred two minutes apart: M4.3 at 17:05:45 WIB it was, M4.2 at 17:07:17 WIB, M3.7 at 17:09:35, and M4.0 at 17:11:50 WIB.
MARIA FRANSISCA LAHUR
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