OVERVIEW:On 08 June 2026, PHIVOLCS reported a magnitude 7.8 earthquake (depth 33 km) at 0637 HRS UTC+7 (0737 HRS local PH time), with the epicentre located 32 km south (S04°W) of Maasim, Sarangani Province, offshore southern Mindanao. The earthquake was initially recorded at magnitude 7.0 with a depth of 10 km before being upgraded in a second advisory to magnitude 7.8 at a depth of 33 km. PHIVOLCS assessed the quake as tectonic in origin, with damage and aftershocks expected. The strongest reported intensity was Intensity VII in the City of General Santos.
TSUNAMI: PHIVOLCS raised a tsunami warning, advising that wave heights of more than one metre above normal tides were expected, with first waves arriving between 0737 and 0937 HRS local time and potentially continuing for hours. Residents of at least nine Mindanao provinces were advised to evacuate coastal areas immediately. BMKG also issued a tsunami warning for the Maluku Islands, Sulawesi and Kalimtantan. Indonesia’s BMKG reported sea-level changes of less than one metre so far.
IMPACTS AND DAMAGES: NDRRMC Philippines and BNPB Indonesia are currently conducting initial assessments to gather information on impacts and damages. Initial news reports show damaged buildings and infrastructures.
RESPONSE EFFORTS:
- The Philippine President directed all relevant government agencies to act immediately and urged residents in affected provinces to move to higher ground, stating the national government is coordinating with regional offices and local chief executives.
- NDRRMC Philippines is conducting an emergency coordination meeting on the initial impact reports and the ongoing response operations. The NDRRMEOC is on RED alert.
- Several ASEAN Member States indicated readiness to support through the AHA Centre.
The AHA Centre EOC alert level is raised to ORANGE, and continues to closely monitor developments in coordination with NDRRMC and BNPB, and remains on standby should the affected countries welcome assistance from ASEAN.
DATA SOURCES
ASEAN Disaster Monitoring & Response System (DMRS), ASEAN Disaster Information Network (ADINet); ASEAN Specialised Meteorological Centre (ASMC);
Indonesia: BNPB, BMKG;
Philippines: NDRRMC, PHIVOLCS;
Verified news media agencies
