An earthquake of magnitude 7. 4 struck the Northern Molucca Sea region near Ternate, producing strong shaking that damaged buildings, prompted immediate evacuations and triggered a tsunami alert that was later lifted. The quake was initially recorded at magnitude 7. 8 and struck at a depth later revised to 35km. Officials warned waves could occur within 1, 000km of the epicentre along Indonesian coastlines and neighbouring shores, and local communities reported chaotic scenes as tremors forced people into the streets.
Earthquake aftermath and local damage
The seismic event’s epicentre was located roughly 120–127km from the city of Ternate in North Maluku province. Strong shaking was reported across northern Sulawesi, with visible building damage in coastal cities. In Bitung, along the north-eastern edge of Sulawesi, commercial areas experienced power outages and people fled as tremors grew stronger; one local resident described shoppers and parents scrambling and teachers sending children home from a school close to the sea.
Images and on-the-ground accounts show collapsed masonry and rubble around a sports complex and other structures. In Manado, a building collapse resulted in at least one fatality and one injury when an individual was buried under rubble, a local search and rescue official. The scale of structural collapse varied by location, with some observers noting the intensity of shaking was greater than typical local quakes.
Tsunami alert, measured waves and official warnings
The United States Geological Survey (USGS) provided the initial magnitude and location data, and the Hawaii-based Pacific Tsunami Warning Center (PTWC) issued an alert that hazardous tsunami waves were possible within 1, 000 kilometres of the epicentre along the coasts of Indonesia, the Philippines and Malaysia. The PTWC later announced the tsunami threat had passed, lifting the warning about two hours after the quake.
Indonesia’s BMKG geological agency recorded sea-level changes in nearby coastal areas: waves up to 75 centimetres were measured in North Minahasa, 20 centimetres in Bitung, and 30 centimetres in North Maluku province. Other regional meteorological and ocean agencies advised minor sea-level variations might be observed along distant shores but did not record widespread tsunami damage.
Expert perspectives and regional consequences
The USGS’s revision of the event from an initial magnitude of 7. 8 to 7. 4 and the adjustment of focal depth to 35km were central to official assessments of tsunami potential and expected ground motion. The PTWC noted that, based on available data, the immediate tsunami threat had passed. Indonesia’s BMKG provided local wave measurements that underpinned decisions by authorities to lift broader alerts in the hours after the event.
George Leo Mercy Randang, a local search and rescue official, described the human toll in parts of North Sulawesi: “The quake was felt strongly and around Manado … one person died and one person had a leg injury, ” he said. Local residents reported scenes of panic and rapid evacuations, with some parents retrieving children from seafront schools and markets clearing as people sought open ground.
Regionally, the authorities’ swift issuance and subsequent lifting of a tsunami alert illustrates the procedural balance between precaution and measured reassessment when initial seismic readings are updated. The recording of modest waves at multiple coastal stations informed that reassessment and helped prevent unnecessary prolonged displacement while local search-and-rescue teams focused on structural damage and isolated casualties.
As emergency crews continue assessments, the immediate priorities remain search and rescue where buildings collapsed, restoration of power in affected commercial areas, and clear public guidance on coastal safety until after-aftershocks and sea-level readings stabilise. The event underscores how a single offshore rupture can ripple through populated coastal zones and prompt a cascade of rapid emergency responses.
What questions will local and regional agencies pursue next about construction resilience, early-warning precision and community preparedness in the wake of this earthquake?
