Beneath Flores Dawn, A Tsunami Warning Sends Coastal Communities Inland Before the Sea Falls Quiet Again

The first fear after a powerful offshore earthquake is often not the shaking itself, but what the sea might do next. Along Flores, that uncertainty appeared shortly after the ground moved violently on August 15. Coastal communities watched the water while authorities assessed whether the earthquake had generated a dangerous tsunami.

The magnitude 7.7 earthquake struck offshore near Nagekeo Regency in East Nusa Tenggara at around 4:58 a.m. local time. BNPB reported that the earthquake was centered approximately 38 kilometers northeast of Mbay and occurred at a depth of 15 kilometers.

Because the earthquake occurred beneath the sea and was strong enough to create concern about ocean movement, authorities issued a tsunami warning covering parts of eastern Indonesia. The alert prompted precautionary movement away from coastal areas as residents waited for more information.

The warning did not remain in place indefinitely. Reuters reported that tsunami waves remained below one meter and that the warning was lifted about three hours after the earthquake when authorities determined that there was no continuing significant sea-level threat.

The period between an earthquake and the lifting of a tsunami warning can feel unusually long for people living near the coast. Information arrives in stages, while residents must make decisions before the complete picture is available. Moving toward higher ground or farther inland can therefore become a precaution rather than a response to an already visible wave.

For Flores communities, the tsunami concern unfolded alongside a much more immediate disaster on land. The earthquake itself caused buildings to collapse, triggered landslides, disrupted electricity, and damaged transportation routes. More than 2,000 people were reported to have evacuated affected areas.

The difference between the potential tsunami threat and the actual damage on land became increasingly clear as emergency crews reached affected communities. The tsunami warning was ultimately withdrawn, but rescue operations continued because the earthquake had already caused significant destruction across parts of Flores.

BNPB reported that the earthquake was strongly felt in several areas of East Nusa Tenggara and surrounding regions. The agency continued updating information as teams assessed the situation, reflecting the difficulty of establishing a complete picture immediately after a major earthquake.

For coastal residents, the lifting of the warning brought one immediate uncertainty to an end. Yet many families remained displaced or unable to return home because of damaged buildings, landslides, and aftershocks. The sea had returned to a quieter state, but the communities along its edge were still dealing with the consequences of the earthquake.

Authorities continue to monitor the affected region while rescue and recovery operations proceed. The tsunami alert has been lifted, but emergency teams remain focused on casualties, damaged infrastructure, displaced residents, and communities that are still difficult to reach.

Image Disclaimer

These visuals were produced with AI tools as conceptual representations of the tsunami warning and earthquake aftermath and are not real photographs.

Sources

Reuters Associated Press BNPB BMKG