4.8 SR Earthquake In Southern Java Due To Subduction Activities

Image via ANTARA

JAKARTA - An earthquake with a magnitude of 4.8 that rocked the Indian Ocean south of Java at 21:35 WIB was a shallow earthquake due to subduction activity.

"If you pay attention to the location of the epicenter and the depth of the hypocenter, the earthquake that occurred was a shallow earthquake due to subduction activity," said Head of the BMKG Banjarnegara Geophysical Station, Setyoajie Prayoedhie, quoted by Antara, Monday, August 9.

The epicenter of the 4.8 magnitude earthquake was located at coordinates 8.59 south latitude and 108.895 east longitude or precisely located at sea at a distance of 90 kilometers south of Cilacap City at a depth of 15 kilometers.

Setyoajie said that based on the analysis of the source mechanism, it showed that the earthquake had a thrust fault mechanism.

According to him, the earthquake was felt in Cilacap, Pangandaran, Banjar, Ciamis, Banyumas, and Karangnunggal III MMI (Modified Mercalli Intensity) as well as Garut, Kebumen, Purwokerto, Yogyakarta, and Pacitan II MMI.

"Until now, there have been no reports of the impact of damage caused by the earthquake. The modeling results show that this earthquake has no potential for a tsunami," he said.

Setyoajie said the results of BMKG monitoring as of Monday, August 9 at 21:55 WIB, did not show any aftershock activity.

In this regard, he appealed to the public to remain calm and not be influenced by issues that cannot be justified.

"In addition, avoid buildings that are cracked or damaged by the earthquake. Check and make sure the building where you live is earthquake-resistant enough, or there is no damage due to earthquake vibrations that endanger the stability of the building before you return to the house," he said.

Meanwhile, an officer from the Operations Control Center (Pusdalops) of the Regional Disaster Management Agency (BPBD) of Cilacap Regency, Budiyono, said his party had not received any reports related to the damage caused by the earthquake.

"Hopefully the 4.8 magnitude earthquake won't cause any damage," he said.