3 sentences

1. 东南部发生了地震。

   dōng​nán​bù fā​shēng le dì​zhèn.

   An earthquake occurred in the southeast.

   Source: OpenSubtitles

2. 福建省位于中国的东南部。

   Fú​jiàn Shěng wèi​yú Zhōng​guó de dōng​nán​bù.

   Fujian Province is located in the southeastern part of China.

   Source: Dong Chinese Dictionary

3. 格林威治位于伦敦东南部，以其皇家天文台而闻名。

   Gé​lín​wēi​zhì wèi​yú Lún​dūn dōng​nán​bù, yǐ qí huáng​jiā tiān​wén​tái ér wén​míng.

   Greenwich is located in southeast London and is famous for the Royal Observatory.

   Source: Dong Chinese Dictionary