"This is something we've never seen before. We weren't prepared for this kind of event," said Aldulfo Quintero as he cleared debris from a store in Chitre, about 250 kilometers (155 miles) southwest of Panama City.
The 41-year-old told AFP he has a "great fear" that a new earthquake could strike any moment.
After the initial 7.7-magnitude quake around midday Friday, over 100 aftershocks have been recorded, some as strong as magnitude 6.0.
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