33465
Earthquakes are frequent in the area around the Adriatic Sea , although most are too faint to be felt ; an earthquake doing significant damage happens every few decades , with major earthquakes every few centuries .
 Adriatic Sea
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Adriatic Sea