Three Nations, Three Earthquakes: Powerful Tremors Leave Trail Of Damage Across Asia, What's Behind?

A series of strong earthquakes struck parts of Indonesia, China and Japan on Tuesday, damaging buildings, injuring residents and forcing emergency teams to assess risks across three seismically active countries. The strongest quake was reported in Indonesia’s Sulawesi island, where a magnitude 6.7 tremor hit near Palu and revived memories of the region’s devastating 2018 disaster.

The earthquakes occurred within hours of each other but in separate tectonic zones. Indonesia reported injuries and visible structural damage, China confirmed one death in Qinghai province, and Japan recorded shaking around the Tokyo region without casualties or a tsunami warning. Authorities in all three countries continued inspections after aftershocks followed the main tremors.

Indonesia earthquake damages buildings in Sulawesi

In Indonesia, the quake struck east-southeast of Palu at 10:27 am local time, according to initial reports. The epicentre was estimated around 43 kilometres from the area and at a depth of about 10 kilometres. Shallow earthquakes often cause stronger shaking near the surface, especially in populated regions with vulnerable buildings.

At least eight people were injured after the quake, while residents rushed out of homes, hotels and shops as walls cracked and roofs collapsed in parts of Palu. Debris was seen scattered on streets, and local disaster officials said they were still collecting information on damaged properties, possible displacement and the condition of affected neighbourhoods.

Palu, a city of around 400,000 people, remains deeply sensitive to earthquakes because of the 2018 catastrophe. That year, a magnitude 7.5 quake triggered a tsunami and soil liquefaction, killing more than 4,000 people in and around Central Sulawesi. The latest tremor did not cause a tsunami alert, but it prompted immediate fear among residents.

Several aftershocks were recorded after the main quake, including one with a magnitude of 5.2. Many residents chose to stay outside buildings as a precaution. One resident, Muhtar Ahmad, said people remained fearful because of past experience. “We are still traumatised by the previous earthquake, so we chose to remain outside because we are afraid that aftershocks may continue,” Ahmad said.

Hotels and public facilities also moved quickly to clear buildings. Effendi Natali, general manager of a four-star hotel in Palu, said guests were evacuated after the shaking. “We have evacuated all guests, including several guests who remained in their rooms,” Natali said. “They all panicked, which is a natural reaction during an earthquake, but everyone is safe.”

China quake leaves one dead in Qinghai

In China, a magnitude 6.3 earthquake struck Haixi prefecture in Qinghai province at 5:06 pm Beijing time. The quake was reported at a depth of around 10 kilometres. Chinese authorities confirmed that one person had died and four others were injured, while rescue and emergency teams checked affected areas for further damage.

Coal mines near the epicentre were evacuated as a safety measure. Workers were moved out while officials assessed whether tunnels, roads or other infrastructure had been affected. Early reports said rescuers were searching for trapped people, though the full scale of damage was still being verified by local authorities.

Aftershocks were also felt in Qinghai, including one measured at magnitude 4.9. Such aftershocks can complicate rescue work because damaged buildings may weaken further. Emergency teams usually inspect schools, hospitals, residential blocks, transport links and industrial sites first after a strong quake, especially in remote or high-altitude areas.

Qinghai lies on the northeastern edge of the Tibetan Plateau, a region shaped by powerful geological pressure from the collision of the Indian and Eurasian tectonic plates. Earthquakes are not unusual in western China, but damage levels vary widely depending on depth, population density, building strength and distance from the epicentre.

Japan reports shaking but no tsunami threat

Japan also experienced a strong tremor near the east coast of Honshu, with shaking felt in Tokyo and nearby areas. Initial reports put the quake at around magnitude 6, while later information cited a magnitude of 5.5. The tremor occurred around 7:46 pm local time, according to reports from Japan.

No casualties were reported in Japan, and the country’s weather agency said there was no tsunami threat. The strongest shaking was felt in Gunma and Saitama prefectures, north of Tokyo. Trains, buildings and public systems in Japan are designed for frequent seismic activity, though authorities typically conduct checks after noticeable tremors.

Japan sits along the Pacific “Ring of Fire”, one of the world’s most active earthquake belts. Indonesia is also located on the same broad seismic zone, where several tectonic plates meet. This makes both countries highly exposed to earthquakes, volcanic eruptions and, in some cases, tsunami risks after undersea quakes.

The three earthquakes underline the importance of rapid alerts, building safety and public preparedness in high-risk regions. While Japan avoided casualties, Indonesia and China faced injuries, damage and emergency response challenges. Authorities in the affected areas continued inspections after the tremors, with aftershocks remaining a key concern for residents and rescue teams.