“Scientists were surprised by the ensuing tsunami, which resulted in conflicting warning messages. But experts suggest that the area’s unique geology could be to blame for the unusual progression of the disaster.

“The earthquake followed a series of temblors that began around 2:00 PM WIB with a 6.1-magnitude quake.

“That event not only destroyed dozens of houses but resulted in one death and at least 10 injuries, according to Reuters.

“The ground continued to roil with 27 aftershocks that eventually gave way to the intense, shallow 7.5-magnitude temblor centered about 6 miles deep, according to the U.S. Geological Survey.

“Since then, 31 aftershocks have gripped the island, according to CNN Indonesia.”

Read more at National Geographic