Sumatra
There were no immediate reports of damage or casualties.
It was a solemn Christmas for the congregation in Indonesia's Carita, a seaside town left reeling from the tsunami that has killed over 400 people.
Over 220 people were reported killed and hundreds others were injured after a tsunami stroke Indonesian Sunda Strait.
At least 168 people were killed and another 745 injured after a tsunami hit the coastline of west Java and Sumatra, Indonesia on Saturday.
The latest ferry disaster in Indonesia, which happened on Tuesday near Sulawesi island, came two weeks after an overcrowded ferry sank on Lake Toba in Sumatra
An earthquake of magnitude 6.5 struck west of Indonesia's island of Sumatra on Sunday.
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