(Picture  Yonhap/VNA)

According to the VNA, Indonesia's Meteorology, Climatology and Geophysics Agency (BMKG) said an earthquake with a magnitude of 7.4 has struck west of the Indonesian island of Sumatra.
The BMKG said a tsunami warning for the area has been issued.
Earlier, the European Mediterranean Seismological Center (EMSC) said the earthquake had a magnitude of 6.9. According to EMSC, the epicenter of the earthquake was located at a depth of 20 km.
EMSC announced that a magnitude 6.1 earthquake shook the Kepulauan Batu archipelago of Indonesia in the Indian Ocean at dawn on April 23 (local time). According to EMSC, the focal depth is 43 km.
Earlier on the afternoon of April 22, there was also a magnitude 6.4 earthquake off the coast of Southeast Sulawesi province of Indonesia. The Indonesian Meteorology, Climatology and Geophysics Agency said the earthquake occurred at 3:23 pm (local time) off the southeastern province of Sulawesi, with a depth of about 32 km below the seabed. The epicenter is located 227 km northeast of the Wakatobi Regency Islands. Authorities did not issue a tsunami warning after assessing the tremors were unlikely to cause large waves.
Two days earlier, Indonesia was also hit by a magnitude 6.4 earthquake that struck off the coast of North Sulawesi province, central Indonesia.
According to the German Center for Geosciences Research (GFZ), the epicenter was located at a depth of 10 km.