West Java Earthquake Due to Indo-Australian-Eurasian Plate Collision

By : Herry Barus And Aldo Bella Putra | Saturday, December 16 2017 - 14:00 IWST

BMKG Badan Meteorologi, Klimatologi, dan Geofisika (Foto Dok Industry.co.id)
BMKG Badan Meteorologi, Klimatologi, dan Geofisika (Foto Dok Industry.co.id)

INDUSTRY.co.id - Jakarta - Meteorology, Climatology and Geophysics Agency said the earthquake with magnitude of 7.3 on Friday (15/12) at 23:47 pm due to the activity of subduction zone formed due to collision of Indo-Australian Plate against Eurasian Plate in southern Java.

"Based on the position and depth, the earthquake event is caused by the activity of subduction zone formed by the collision or subduction of Indo-Australian Plate against Eurasian Plate in southern Java area," said Head of BMKG Earthquake and Tsunami Center Mochammad Riyadi in his statement received in Jakarta on Saturday (12/16/2017)

The location of the earthquake is located at 8.03 LS and 108.04 E with a depth of 105 km. The updated data BMKG mentions the strength of the quake with magnitude 6.9 at 7.75 LS and 108.11 BT at a depth of 107 km.

The earthquake was centered at 42 km southwest of Kawalu, West Java. This earthquake is potentially a tsunami in southern West Java, Central Java and Yogyakarta.

From the recordings of tide gauge stations close to the epicenter, there was no recorded sea level rise which end BMKG tsunami early warning at 02:26 pm.

Furthermore, he said, from the monitoring results BMKG until 02:14 pm has happened three times aftershocks with magnitude 3.2, 3.4 and 3.2.

Based on the results of shock level analysis (shakemap), the intensity of earthquakes potentially felt around Tasikmalaya also felt quite hard in Bandung, Kebumen, Karangkates, Yogyakarta, Jakarta, Depok, Ngawi, Madiun, Nganjuk, Mataram.

"People are encouraged to stay calm and follow BPBD directives and BMKG information, not to be fooled by the irresponsible issues of the earthquake and tsunami, while also being alert to the occurrence of aftershocks that generally strengthen," he said.

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