Wu Min-ching, who hails from Taipei and is on the team compiling The Local Records of Erhkan, says that Penghu's accent was once the same as Tongan's in Quanzhou of Fujian Province. But because there was little communication between the islands early on, the accents grew different.
來自台北、二崁村志工作隊駐當地成員吳敏菁表示，澎湖的語音屬泉州同安腔，因為早期島與島之間少往來，往往語音也不相同。