A powerful 7.4-magnitude earthquake struck the Molucca Sea off Indonesia’s coast on Thursday, prompting a tsunami warning for neighboring countries. The quake, centered 120–127 kilometers west-northwest of Ternate in North Maluku, occurred at a depth of 35 kilometers, according to the U.S. Geological Survey (USGS). The Pacific Tsunami Warning Center initially warned of hazardous waves within 1,000 kilometers of the epicenter, affecting Indonesia, the Philippines, and Malaysia. However, the alert was later lifted after assessments confirmed no significant threat.
One person was killed in Manado, North Sulawesi, due to falling debris, while another sustained injuries, according to Indonesia’s search and rescue officials. Tsunami waves of 20–30 centimeters were recorded in Bitung and West Halmahera, but no major damage was reported. The USGS noted that the Molucca Sea is seismically active, with frequent moderate to large earthquakes.
Immediate Action & Core Facts
The earthquake, initially reported as 7.8 magnitude, was later revised to 7.4 by the USGS. Aftershocks as high as magnitude 5 were recorded. The Indonesian Meteorology, Climatology, and Geophysics Agency (BMKG) confirmed minor tsunami waves, but authorities emphasized that the threat had passed. The Philippines and Malaysia were also placed on alert, though their agencies later stated no immediate danger.
Deeper Dive & Context
Seismic Activity in the Region
Indonesia lies on the Pacific Ring of Fire, a highly active seismic zone. The country experiences over 43,000 earthquakes annually, though most are minor. The 2004 Indian Ocean earthquake and tsunami killed 230,000 people, primarily in Indonesia. In 2022, a magnitude 5.6 quake in West Java resulted in 602 deaths.
Tsunami Preparedness
The Pacific Tsunami Warning Center advised coastal residents to monitor alerts, noting that tsunami impacts vary by geography. Ternate and Tidore, historic spice islands, were urged to prepare for potential evacuations. The Bureau of Meteorology (Australia) confirmed no threat to its coastlines.
Economic and Tourist Impact
The quake struck near popular holiday destinations, raising concerns for tourism. Indonesia’s North Maluku province has a population of over 205,000, with Ternate as a key urban center. The USGS highlighted that the region frequently experiences moderate to large earthquakes.
International Response
The Philippines’ seismology agency (PHIVOLCS) and Malaysia’s meteorological department monitored the situation but reported no immediate threats. The USGS emphasized that magnitude 7 earthquakes occur annually in Indonesia, while magnitude 8 or higher strikes every 5–7 years.
Conclusion
While the immediate danger has subsided, the earthquake underscores the ongoing seismic risks in the region. Authorities continue to assess damage and ensure public safety.