April 17, 2025 | 07:37 pm
TEMPO.CO, Bandung - A tremor resulting from a tectonic earthquake with a magnitude of 2.6 was experienced by residents of Cugenang District in Cianjur Regency, West Java. The Meteorology, Climatology, and Geophysics Agency (BMKG) recorded that the earthquake took place on Thursday, April 17, 2025, at 13:23 local time.
According to Hartanto, the Head of BMKG Region II South Tangerang, its epicenter was detected on land, approximately 5 kilometers southwest of the central area of Cianjur Regency. The seismic event originated at a depth of 6 kilometers beneath the surface.
"This type of earthquake is categorized as shallow, resulting from active fault activity," he stated in a written press statement.
Based on reports received from the community, the vibrations caused by the earthquake were felt in Cianjur District with an intensity ranging from II to III on the Modified Mercalli Intensity (MMI) scale, described as being clearly noticeable indoors, akin to the passing of a truck. In Cugenang District, the shaking registered an intensity of II MMI, meaning they were felt by only a few individuals and caused light suspended objects to swing.
The BMKG has stated that there have been no reports of structural damage to buildings as a consequence of this earthquake. This situation mirrors a previous earthquake, reported to have occurred the day before with a magnitude of 2.5, which was felt in Karangtengah District, also within Cianjur Regency.
Hartanto further explained that the earthquake that occurred on Wednesday at 09:27 local time was centered on land, approximately 8 kilometers northeast of the central area of Cianjur Regency, and had a depth of 5 kilometers.
Earthquake Hits Bolaang Mongondow Timur
While an earthquake was recorded earlier in Soppeng and Bone, South Sulawesi, a separate seismic event of magnitude 5.6 struck Bolaang Mongondow Timur. According to the BMKG, this earthquake occurred on Thursday, April 17, 2025. The Soppeng and Bone earthquake, with a magnitude of 4.1, occurred at 13:35 WIB (14:35 local time), just twelve minutes after the earthquake in Cianjur. Its epicenter was also located on land, at a depth of 6 kilometers, and its shaking intensity was reported at II-III MMI.
The BMKG noted that the Bolaang Mongondow Timur earthquake was the fourth earthquake of the day whose tremors were felt across Indonesia. The first two earthquakes occurred earlier on Thursday. The initial earthquake, with a magnitude of 4.1, struck Labuha, South Halmahera, North Maluku. This was followed by the 5.6 magnitude earthquake in Bolaang Mongondow Timur, North Sulawesi.
The earthquake in Bolaang Mongondow Timur generated shaking felt at an intensity of III-IV MMI. An intensity of IV MMI is characterized by shaking that is felt by many people indoors and can cause doors and windows to creak.
Based on BMKG's analysis, the epicenter of this earthquake was situated at sea, 51 kilometers southeast of the city of Tutuyan, North Sulawesi, at a depth of 14 kilometers. "The earthquake is classified as shallow, resulting from the activity of faults on the floor of the Maluku Sea," explained Daryono, the Director of Earthquakes and Tsunamis, in a statement released after the event.
Besides Bolaang Mongondow Timur, the same level of shaking was also felt in Bolaang Mongondow Selatan. Furthermore, several other areas, including Bolaang Mongondow, Kotamobagu, and Southeast Minahasa, experienced the tremors at an intensity of III MMI.
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