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A strong earthquake measuring 6.7 magnitude struck Indonesia's Sulawesi island early Tuesday, according to the United States Geological Survey (USGS). The quake occurred at 11:27 a.m. local time (0327GMT), with its epicenter located approximately 46 kilometers (28.5 miles) east-southeast of Palu, the capital of Central Sulawesi province.

The earthquake struck at a shallow depth of 10 kilometers (6.21 miles), which can increase the intensity of ground shaking. There were no immediate reports of casualties or significant damage. Indonesia's disaster management and meteorological agencies did not immediately issue a tsunami warning.

2018 disaster context

Palu was devastated by a powerful earthquake and tsunami in 2018 that killed more than 4,000 people, making residents particularly sensitive to seismic activity in the region. The 2018 disaster also caused massive liquefaction, swallowing entire neighborhoods. Tuesday's quake, while strong, did not trigger the same level of destruction, but authorities remain on high alert. Indonesia sits on the Pacific Ring of Fire, a region of intense seismic and volcanic activity.