"By observing the location of the epicenter and the depth of the hypocenter, the earthquake was shallow and occurred due to the Flores back-arc thrust activities,” the head of BMKG’s Earthquake and Tsunami Center Daryono confirmed here on Tuesday.
He said that the earthquake was centered at 8.29 degrees south latitude and 115.62 degrees east longitude.
Its epicenter was located undersea at a depth of 30 kilometers and lay 1 km east of Kubu, Karangasem, Bali, he added.
The earthquake occurred at 5:38 p.m. Western Indonesian Standard Time (WIB) on Tuesday in the Karangasem eastern coast area. It was felt at a Modified Mercalli Intensity (MMI) of III-IV, meaning many residents felt the tremors indoors.
The earthquake was felt in Mataram, North Lombok, Central Lombok, and West Lombok, West Nusa Tenggara, at an intensity of III MMI, meaning the vibrations were felt inside the house and were similar to those produced by the passing of a truck.
The quake was also felt in Tabanan, Kuta, Buleleng, and East Lombok at an intensity of II MMI, meaning the vibrations were felt by some people and caused light, hanging objects to sway.
As of 6:30 p.m. in Jakarta, BMKG's monitoring showed 21 aftershocks, with the largest magnitude recorded at 4.6.
"The modeling results show that this earthquake does not have the potential for a tsunami," Daryono added.
As of 8 p.m. Jakarta time, several buildings were reported to have been damaged. They included four houses in Baturinggit Kelod hamlet, Baturinggit village, and one house in Pagubugan hamlet, Manggis village.
Balimed Hospital in Karangasem was also damaged in the earthquake. So far, there have been no victims in the quake.
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Translator: Zubi M, Kenzu
Editor: Azis Kurmala
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