BMKG asked Sumedang residents to be alert for a week after the earthquake. 110 houses were seriously damaged, 456 residents were displaced,

"However, we can say that this is from active local fault activity. Hopefully we in the field can collect data as soon as possible, so we can justify what the fault is, hopefully after the main earthquake of 4.8 magnitude, the trend of aftershocks will decrease in strength , hopefully it will continue to decay," he said.

As a result of a series of earthquakes with the largest measuring 4.8 magnitude in Sumedang on December 31 2023 to January 1 2024, 138 houses were slightly damaged, 110 houses were seriously damaged, 456 residents were displaced, 11 people suffered minor injuries, with two of them being treated at the Regional Hospital. Sumedang and Santosa Hospital Bandung, and there were no casualties in this incident.

Based on the results of analysis by the Geological Agency of the Ministry of Energy, Resources and Minerals (ESDM), this earthquake is thought to have been caused by active Cileunyi - Tanjungsari fault activity which was concluded based on the position of the earthquake epicenter and depth from BMKG data.

According to data from the Geological Agency, the Cileunyi - Tanjungsari Fault is a left-hand horizontal fault, its distribution starts from the south of Tanjungsari Village and continues northeast to the Cipeles River valley, and the shear rate value ranges from 0.19 - 0.48 mm/year.

The Geological Agency also noted that the Sumedang Regency area had experienced a damaging earthquake in 1972, while the 2010 earthquake caused anxiety for residents in the Tanjungsari area, Sumedang Regency. In 2022, an earthquake with a magnitude of (M2.7) was recorded at a depth of 16 km. ***

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