據印尼氣象、氣候和地球物理局報告，當地時間10月4日6時37分，印尼亞齊特區亞齊再也縣扎朗鎮西南68公里處發生5.9級地震，震源深度爲26公里。本次地震暫無海嘯風險。

China National Offshore Oil Corp (CNOOC) said the country’s first offshore CO2-injection enhanced-gas-recovery (EGR) demonstration — the new central platform at the Dongfang 1-1 gas field — has completed main-structure construction and entered commissioning. When operational the project will sequester over 1 mln tonnes of CO2 a year in subsea formations, a material step toward scaling deep decarbonization in China’s offshore energy sector.

Indonesia's Meteorology, Climatology and Geophysics Agency (BMKG) reported a magnitude-5.9 earthquake at 06:37 local time on Oct. 4, centered about 68 km southwest of Calang, Aceh Jaya Regency, Aceh province, at a depth of 26 km. BMKG said there is no tsunami threat.