A powerful 7.6-magnitude tectonic earthquake struck the waters southeast of Bitung early Thursday morning, triggering widespread alarm and tsunami warnings across the provinces of North Sulawesi and North Maluku. The quake, which occurred at approximately 05:48 AM local time on April 2, 2026, sent shockwaves through coastal communities and prompted an immediate mobilization of national emergency services.
The Meteorology, Climatology, and Geophysics Agency (BMKG) pinpointed the epicenter at 1.25 degrees north latitude, and 126.27 degrees east longitude, located roughly 129 kilometers southeast of Bitung, North Sulawesi. According to BMKG Head Teuku Faisal Fathani, the rupture occurred at a depth of 33 kilometers, a shallow enough position to cause significant surface shaking and displace the seabed.
The North Sulawesi-North Maluku Earthquake has already resulted in structural damage to essential infrastructure and forced thousands of residents into temporary shelters. While the initial seismic shock caused the most immediate panic, the subsequent threat of a tsunami kept coastal populations on high alert for several hours as officials monitored sea-level fluctuations in real-time.
Tsunami Warnings and Coastal Impact
Immediately following the main shock, BMKG issued warnings that the earthquake had the potential to generate tsunami waves ranging from 0.5 to 3 meters in height. Modeling suggested that the regions of Ternate, Halmahera, Tidore, and Bitung were at the highest risk of inundation.
While the most catastrophic predictions did not materialize, actual sea-level observations confirmed that minor tsunamis did reach several coastlines. The National Disaster Management Agency (BNPB) reported that its early warning systems detected wave activity shortly after the quake.
| Location | Time of Detection | Wave Height |
|---|---|---|
| North Minahasa | 06:16 AM | 0.75 meters |
| West Halmahera | 06:08 AM | 0.3 meters |
| Bitung | 06:15 AM | 0.2 meters |
Abdul Muhari, Head of the BNPB Data, Information, and Communication Center, noted that while these heights were relatively small, they underscored the volatility of the region. He urged the public to remain vigilant, warning that the risk of secondary waves and the instability caused by aftershocks remained a serious concern.
Emergency Response and Infrastructure Damage
In the wake of the shaking, the Ternate City Government took the decisive step of declaring a formal disaster response status. Mayor Tauhid Soleman announced that this emergency status would remain in effect for seven days, allowing for the rapid deployment of resources and the streamlined allocation of aid.
The Mayor confirmed that he has directed the Regional Disaster Management Agency to prioritize three key areas: Batang Dua, Moti, and Ternate. Preliminary reports indicate that the earthquake caused significant damage to residential areas, schools, and places of worship, particularly in the Batang Dua and Ternate regions. The damage to these basic infrastructures has left many families displaced and without access to primary services.
President Prabowo Subianto has been closely monitoring the unfolding crisis. According to Cabinet Secretary Lieutenant Colonel Teddy Indra Wijaya, the President has ordered the immediate evacuation of affected residents, particularly those on the southwest coast of Batang Dua Island. To support these efforts, a joint task force comprising the BNPB, the Indonesian National Armed Forces (TNI), and the National Police (Polri) has been dispatched to the hardest-hit zones to conduct search and rescue operations and facilitate safe movement to inland shelters.
The Threat of Aftershocks and Regional Risk
The seismic instability has continued long after the initial event. By 12:00 PM local time on Thursday, the BMKG had recorded 93 aftershocks. These subsequent quakes have varied in intensity, with magnitudes ranging from 2.8 to 5.8. Teuku Faisal Fathani reported that at least seven of these aftershocks were strong enough to be felt by residents, adding to the psychological stress of those already displaced.
Seismologists warn that the sequence of aftershocks could continue for several days or even weeks. Fathani explained that the trend of these shocks will be studied over the coming 48 hours to determine if the activity is tapering off or if further significant movements are likely.
This event highlights the perennial danger faced by the Indonesian archipelago. Lieutenant General Suharyanto, Head of the BNPB, reminded the public that North Sulawesi and North Maluku are among the most seismically active regions in the country. He noted that BNPB historical data reveals a pattern of frequent, high-magnitude earthquakes in these provinces dating back to 1608.
To mitigate these risks, the government has invested in early warning systems and specialized training for regional agencies. Though, Suharyanto emphasized that technology is only one part of the solution, stating that public readiness and a culture of vigilance are essential for survival in a high-risk zone.
Emergency teams remain on the ground in Ternate and Bitung, focusing on the stability of damaged buildings and the distribution of emergency supplies. The next critical checkpoint will be the BMKG’s updated seismic trend report, expected within the next 48 hours, which will determine if the tsunami warnings can be fully downgraded and if residents can begin returning to their homes.
We invite readers to share their experiences or provide updates from the affected regions in the comments below.
