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Manila Bulletin devider Philippines devider National devider Phivolcs lifts tsunami warning; no damaging waves observed

Phivolcs lifts tsunami warning; no damaging waves observed

Published Jun 8, 2026 03:38 pm

At A Glance

  • The first waves were recorded at 7:42 a.m. in Maasim, Sarangani; 7:44 a.m. in Kiamba, Sarangani; 7:59 a.m. in Kalamansig, Sultan Kudarat; 8:19 a.m. in Mati City, Davao Oriental; 8:32 a.m. in Zamboanga City, Zamboanga del Sur; and 8:45 a.m. in Tandag City, Surigao del Sur.
  • After an extended two-hour observation period, Phivolcs said minor sea level disturbances continued but were assessed to be too small to cause damage, leading to the cancellation of the tsunami warning.
Phivolcs
Phivolcs
The Philippine Institute of Volcanology and Seismology (Phivolcs) has lifted the tsunami warning issued after a magnitude 7.8 offshore Sarangani earthquake on Monday, June 8.
The cancellation was issued at 3:19 p.m., after monitoring showed only minor sea level disturbances following the arrival of the initial wave.
Shortly after the quake struck at 7:37 a.m., Phivolcs issued a tsunami warning for coastal communities in Sarangani, Basilan, Davao Occidental, South Cotabato, Sultan Kudarat, Sulu, Tawi-Tawi, Zamboanga del Sur, and Zamboanga Sibugay, prompting immediate evacuation advisories in vulnerable coastal areas.
Phivolcs sea level monitoring stations recorded the arrival of tsunami waves between 7:42 a.m. and 8:45 a.m.
The first waves were recorded at 7:42 a.m. in Maasim, Sarangani; 7:44 a.m. in Kiamba, Sarangani; 7:59 a.m. in Kalamansig, Sultan Kudarat; 8:19 a.m. in Mati City, Davao Oriental; 8:32 a.m. in Zamboanga City, Zamboanga del Sur; and 8:45 a.m. in Tandag City, Surigao del Sur.
Recorded wave heights were 1.48 meters in Kiamba; 0.84 meters in Kalamansig; 0.48 meters in Maasim; 0.25 meters in Zamboanga City; 0.21 meters in Mati City; and 0.09 meters in Tandag City.
After an extended two-hour observation period, Phivolcs said minor sea level disturbances continued but were assessed to be too small to cause damage, leading to the cancellation of the warning.
However, the agency reminded coastal communities to remain vigilant for aftershocks and to stay alert for natural tsunami warning signs, including strong ground shaking, sudden sea level rise or fall, and unusual loud ocean sounds.
If any of these signs are observed, residents are advised to immediately move to higher ground.

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PHIVOLCS TSUNAMI WARNING LIFTED 7.8-MAGNITUDE EARTHQUAKE MINDANAO SARANGANI
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