A powerful 7.8‑magnitude earthquake struck offshore the southern Philippines on Monday morning, triggering tsunami warnings and advisories across multiple countries in Asia as aftershocks continue to shake the region. The quake — one of the strongest this year — prompted emergency agencies to warn coastal populations to evacuate to higher ground immediately.

The quake was centered off the coast of Mindanao, near Sarangani province, at a relatively shallow depth that increased its destructive potential. Alongside the main event, aftershocks of varying strength were recorded, leaving communities on alert as rescue and assessment efforts continue.

Full List of Countries That Issued Tsunami Warnings or Advisories

Here’s a complete overview of where tsunami alerts were activated after the quake:

Philippines

  • National tsunami warning: Agencies warned coastal communities to prepare for waves exceeding 1 metre above tide level.
  • Authorities in multiple Mindanao provinces — including Sarangani, Sultan Kudarat, Davao Occidental, South Cotabato, Zamboanga Del Sur and nearby areas — urged residents to move to safer ground.

Indonesia

  • Indonesian seismological and disaster agencies issued evacuation orders for coastal regions such as northern Sulawesi, Gorontalo and Sangihe Islands, telling residents to seek higher ground due to possible tsunamis.

Palau

  • The Pacific Tsunami Warning Center included Palau in its tsunami alert list, warning of possible impacts on local shorelines.

Taiwan

  • Taiwanese authorities and regional monitoring systems issued precautionary tsunami advisories for coastal regions, signalling potential wave activity after the quake.

Papua New Guinea

  • PNG was also placed under a tsunami warning by the Pacific Tsunami Warning Center as part of broader Pacific safety measures.

Japan

  • Japan Meteorological Agency issued a tsunami advisory for multiple prefectures stretching from Ibaraki to Okinawa. Agencies said waves of up to 1 metre could reach various Pacific coastal areas and urged residents in low‑lying zones to stay alert.

Malaysia

  • Malaysian authorities, particularly in Sabah state, issued tsunami alerts and coastal advisories following the quake, warning of possible sea level fluctuations.

Why Tsunami Warnings Matter & What Officials Are Saying

National seismic agencies and the Pacific Tsunami Warning Center stressed that tsunami waves could arrive within hours of the quake, and that subsequent seismic activity might generate additional waves.

“We strongly advise residents in coastal areas to move inland or to higher ground,” said PHIVOLCS officials, urging urgent evacuation and staying clear of beaches and river mouths.

In some locations, smaller tsunami waves — measured around 1 to 3 metres above normal tide levels — were expected along shores nearest to the epicenter. Authorities emphasised that waves may repeat unpredictably and can carry strong currents capable of sweeping people and objects away.

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Aftershocks & Ongoing Seismic Activity

After the main quake, the region experienced multiple aftershocks, some registering in moderate strength. These tremors can destabilise structures already weakened by the initial shaking and pose additional risks to affected communities.

Officials in the Philippines and neighbouring countries continue to monitor seismic data closely, issuing updates and safety instructions to residents and emergency responders.

Safety Tips During Tsunami Warnings

  • Evacuate immediately to higher ground if you are near the coast.
  • Stay away from beaches, harbors and river inlets until warnings are officially lifted.
  • Follow local alerts from disaster management agencies and radio broadcasts.
  • Prepare emergency kits with essentials like water, food, and first‑aid supplies.