Offshore Earthquake Strikes Eastern Indonesia, Causes Fatality and Localized Tsunamis
An offshore earthquake occurred near eastern Indonesia on Thursday morning, resulting in at least one fatality, damage to structures, and the generation of minor, localized tsunami waves. The event prompted residents in affected areas to evacuate buildings as tremors were felt.
While initial warnings were issued for a wider region, officials later confirmed there was no broader tsunami threat.
Earthquake Details
The seismic event originated beneath the Molucca Sea. The United States Geological Survey (USGS) reported varying magnitudes across different sources: some indicated a 7.8-magnitude, while others stated a 7.4-magnitude. Similarly, reported depths of the quake's origin varied, with some sources citing 10 kilometers and others approximately 35 kilometers.
The epicenter was located near the city of Ternate, a coastal city in Indonesia's North Maluku province with a population exceeding 200,000, approximately 120 kilometers from its coast.
Impact and Casualties
The earthquake caused at least one fatality. A 70-year-old woman in North Sulawesi's Minahasa district was killed after being struck during the quake. One other individual was reported injured.
Initial damage assessments indicated light to moderate impacts. A church on Batang Dua Island in Ternate was affected, and at least two homes in southern Ternate sustained damage. Authorities are continuing efforts to determine the full extent of destruction in other areas.
Tremors from the quake were felt in multiple locations, including the coastal cities of Bitung and Ternate. In Ternate, the shaking lasted up to 20 seconds, prompting residents to evacuate outdoors.
A 70-year-old woman in North Sulawesi was killed, and initial damage included a church and at least two homes, as authorities continue full assessments.
Tsunami Activity
Following the earthquake, the US Tsunami Warning System issued a warning stating that hazardous tsunami waves could impact coastlines within a 1000-kilometer radius of the epicenter, including parts of Indonesia, the Philippines, and Malaysia.
Within minutes of the event, monitoring stations recorded changes in sea levels across parts of the region. Indonesia's meteorology agency detected waves measuring approximately 30 centimeters in West Halmahera and about 20 centimeters in Bitung. Minor fluctuations of roughly five centimeters were also noted in the southern Philippines.
Officials later confirmed there was no broader tsunami threat.
Response and Aftershocks
Abdul Muhari, a disaster management spokesperson, advised coastal communities to avoid shorelines until an official all-clear was issued. Several aftershocks followed the main quake, all occurring offshore.
While felt locally, authorities stated these aftershocks did not pose a tsunami risk.
Geological Context
Indonesia is situated along the Pacific Ring of Fire, a region characterized by active fault lines and frequent seismic hazards.