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A powerful magnitude 7.7 earthquake struck off the coast of Indonesia’s eastern
Flores region early Saturday, August 15, causing deaths, damaging buildings and
sending thousands of residents toward higher ground after authorities issued a
temporary tsunami warning.
The shallow earthquake shook communities across East Nusa Tenggara, with
emergency teams beginning search-and-rescue operations as reports of collapsed
structures, landslides, power outages and disrupted communications emerged. The
disaster has once again highlighted Indonesia’s exposure to major natural hazards
because of its location along the Pacific Ring of Fire.
Strong Earthquake Strikes Near Flores
Indonesia’s Meteorology, Climatology and Geophysics Agency, known as BMKG,
recorded the main earthquake in the early morning at a depth of roughly 10 to 15
kilometers. The epicenter was located offshore near the northern part of Flores
Island, around 68 kilometers northwest of Ende.
Because the earthquake was relatively shallow and occurred beneath the sea,
authorities immediately monitored the possibility of dangerous tsunami waves.
The intense shaking was felt across several parts of East Nusa Tenggara, West Nusa
Tenggara and South Sulawesi. Some residents reported that the shaking continued
for close to a minute, causing panic as people rushed outside their homes and
businesses.
The powerful tremor was followed by numerous aftershocks, adding to fears among
residents who were already dealing with damaged buildings and blocked roads.
Deaths and Injuries Reported
The number of casualties changed rapidly as rescue teams reached isolated
communities.
Initial reports from Indonesian authorities indicated several deaths, while later
emergency officials reported that the toll had risen to at least 20 people, with
additional injuries and people feared trapped beneath rubble. Rescue workers
around Maumere reported finding victims among collapsed structures while teams
attempted to reach areas closer to the earthquake’s epicenter.
Officials warned that the casualty figure could change as emergency crews gain
access to remote areas.
Nagekeo, one of the areas closest to the epicenter, proved particularly difficult to
reach. Landslides blocked roads, while communication problems complicated
coordination between local authorities and rescue teams.
Around 2,000 residents were reported to have evacuated Nagekeo, while damage
was recorded at homes, warehouses and government facilities. Traffic congestion
and electricity disruptions were also reported in parts of the region.
Residents Flee Toward Higher Ground
The earthquake created immediate concern along the coast because of the
possibility of a tsunami.
Residents in coastal communities rushed away from low-lying areas and moved
toward hills and other elevated locations. Some left on foot, while others used
motorcycles, cars and pickup trucks to escape potentially dangerous coastal
zones.
Reports that the sea had temporarily moved back from the shoreline added to the
anxiety, as unusual sea-level changes can sometimes precede tsunami waves.
The Indonesian authorities later lifted the tsunami warning after monitoring the
ocean and determining that the immediate threat had diminished. Small tsunami
waves of less than one meter were nevertheless recorded in several areas.
Authorities continued to advise residents to remain cautious and avoid entering
damaged buildings because strong aftershocks can weaken already unstable
structures.
Rescue Operations Face Major Challenges
Emergency crews immediately began searching collapsed buildings for survivors.
However, the response was complicated by the region’s geography. Flores contains
mountainous areas where landslides can quickly block roads and isolate
communities. In Nagekeo, rescuers reportedly struggled to reach the area by
vehicle because roads had been obstructed.
Alternative rescue routes, including travel by sea, were considered as emergency
teams attempted to reach communities cut off from normal transportation.
The situation also placed pressure on local hospitals. Medical facilities in affected
areas moved some patients outside as a precaution, while emergency workers
assessed structural damage and prepared for additional casualties.
Power outages and communication disruptions created further difficulties for
residents and emergency personnel.
Damage Reported in Maumere and Surrounding Areas
Maumere, the principal town in Sikka Regency on Flores, was among the locations
where significant damage was reported.
Video footage from the area showed sections of buildings collapsing and residents
running through the streets following the violent shaking. Parts of a port facility
were also damaged.
The affected region contains many smaller towns and villages rather than large
numbers of high-rise buildings. Even so, the combination of a powerful magnitude
7.7 earthquake and shallow depth created substantial risks for older or poorly
reinforced structures.
Officials continued assessing damaged homes, public buildings and other
infrastructure while rescue workers searched for people who could still be trapped.
Aftershocks Keep Communities on Alert
Following the main earthquake, dozens of aftershocks were recorded.
One of the strongest aftershocks reached approximately magnitude 6.1, increasing
concerns about additional structural collapses and landslides.
After a major earthquake, residents are often told not to return immediately to
damaged buildings because subsequent tremors can cause walls, roofs and other
weakened structures to collapse.
For people who spent the night outdoors or on higher ground, the continuing
aftershocks created an atmosphere of uncertainty as authorities worked to
determine the full scale of the destruction.
Why Indonesia Experiences Powerful Earthquakes
Indonesia is one of the world’s most earthquake-prone countries.
The archipelago sits along the Pacific Ring of Fire, a vast zone surrounding much of
the Pacific Ocean where several tectonic plates interact. The movement and
collision of these plates generate frequent earthquakes, volcanic eruptions and
other geological hazards.
This geological setting means that Indonesian communities regularly prepare for
seismic events, although the scale and location of each earthquake can vary
significantly.
Flores has experienced catastrophic earthquakes and tsunamis before. In
December 1992, a major earthquake struck the region and generated a tsunami
that caused thousands of deaths and missing persons. Historical records from
Indonesia’s geological authorities describe extensive destruction across Flores,
including severe damage in Maumere.
Memories of Indonesia’s Deadliest Natural Disasters
The latest Flores earthquake also recalls several other devastating disasters in
Indonesia’s modern history.
In December 2004, a massive earthquake off the coast of Sumatra generated the
Indian Ocean tsunami, killing hundreds of thousands of people across countries
surrounding the Indian Ocean, including a very large number in Indonesia.
In 2018, another major earthquake struck Sulawesi, followed by a tsunami that
devastated Palu and surrounding communities. The disaster demonstrated how
earthquakes can trigger multiple hazards, including tsunami waves, landslides,
liquefaction and building collapses.
These historical disasters have encouraged Indonesian authorities to strengthen
earthquake preparedness, early-warning systems and disaster response
capabilities.
Tsunami Threat Lifted, But Monitoring Continues
Although the initial tsunami warning was cancelled several hours after the
earthquake, authorities continued monitoring sea levels and aftershocks.
Australia’s tsunami warning center also reported that the earthquake did not pose
a tsunami threat to mainland Australia or its territories.
For communities in Flores, however, the cancellation of the warning did not
immediately end the emergency. Rescue operations, damage assessments and
evacuation efforts continued.
Officials faced the difficult task of reaching remote areas while determining how
many people had been injured, killed or trapped.
What Happens Next?
The hours and days following a major earthquake are critical for search-and-rescue
teams.
Emergency workers will continue looking through damaged structures for survivors
while authorities assess homes, roads, hospitals, ports and public facilities.
Engineers may also need to inspect buildings before residents are allowed to
return.
Authorities are expected to monitor aftershocks closely and maintain
communication with communities in areas affected by landslides or infrastructure
damage.
For residents, the priority remains personal safety. People living near damaged
structures may need to remain outside or move to designated safe areas until
authorities determine that buildings are structurally sound.
The disaster also underscores the importance of earthquake preparedness,
emergency communication systems, evacuation plans and tsunami awareness in
coastal communities.
A Region Waiting for More Information
The magnitude 7.7 earthquake has left communities across eastern Indonesia
facing a rapidly developing emergency.
While the tsunami warning has been lifted, the combination of casualties,
structural damage, landslides, aftershocks and disrupted infrastructure means that
the recovery process could take time.
As rescue crews continue reaching isolated communities, authorities are working
to establish the complete human and economic impact of the earthquake.
For Flores and neighboring islands, the event is another reminder of the enormous
power of natural disasters in one of the world’s most seismically active regions.
The immediate focus remains on saving lives, finding survivors, treating the injured
and keeping residents away from dangerous structures. As emergency teams
continue their work, further updates are expected regarding casualties,
infrastructure damage and the condition of communities closest to the epicenter.
