日本鹿儿岛县近海频繁发生地震，半个月累计达1500次

Core Viewpoint - The Japan Meteorological Agency reported a significant increase in seismic activity near the Tokara Islands, with 1,500 felt earthquakes recorded from June 21 to July 6, raising concerns about potential strong earthquakes and geological hazards [1] Group 1: Seismic Activity - A total of 1,500 felt earthquakes occurred in the Tokara Islands region from June 21 to July 6 [1] - The Japan Meteorological Agency issued a warning for the possibility of a weak earthquake with a seismic intensity of 6 [1] - The agency highlighted the risk of building collapses and geological disasters in areas experiencing strong tremors [1] Group 2: Earthquake Intensity Scale - The Japan Meteorological Agency's earthquake intensity scale ranges from 0 to 7, categorized into 10 levels from weak to strong [1] - The scale includes levels such as 5 weak, 5 strong, 6 weak, and 6 strong [1]