REGIONAL SUMMARY:
In the tenth week of 2025, the ASEAN region faced a series of 50 disasters, including floods, landslides, storms, and wind-related incidents, impacting Indonesia, Malaysia, the Philippines, and Thailand. According to Indonesia’s Badan Nasional Penanggulangan Bencana (BNPB), these events were reported in Jabodetabek area, Aceh, North Sumatra, Riau, South Sumatra, Bangka Belitung, Banten, West Java, Central Java, East Hava, South Kalimantan, South Sulawesi, Central Sulawesi, and Gorontalo. In Malaysia, the Agensi Pengurusan Bencana Negara (NADMA) reported flooding in Melaka, Negeri Sembilan, Sabah, and Sarawak. Meanwhile, in the Philippines, the National Disaster Risk Reduction and Management Council (NDRRMC) and the Department of Social Welfare and Development (DSWD) reported flooding in North Cotabato. Lastly, in Thailand, Department of Disaster Prevention and Mitigation (DDPM) reported storms and wind-related incidents affecting Chaiyaphum, Kalasin, Maha Sarakham, Mukdahan, Nakhon Phanom, Nakhon Ratchasima, Lopburi, Phetchaburi, and Surin.
HIGHLIGHT:
Since the beginning of the tenth week of 2025, heavy rainfall and overflowing rivers have led to widespread flooding across the western parts of Java, including Jabodetabek and its surrounding areas. The affected locations include Jakarta, Bogor, Bogor City, Depok, Tangerang, Tangerang City, Tangerang Selatan, Bekasi, Bekasi City, Karawang, Sukabumi, and Serang. According to a report from BNPB as of 10 March at 0700 HRS UTC+7, the disaster has tragically resulted in the loss of seven lives, with four individuals reported missing, and six others injured. More than 64K families (200K persons) have been affected, and 1K people have been displaced. Significant damage has also been reported, including 61.7K houses, 14 bridges, 40 roads, five educational facilities, 58 public facilities and places of worship, as well as over 17K hectares of agricultural areas. In response, the President of Indonesia has visited the affected areas to reaffirm the government’s commitment to supporting the impacted population and distribution of relief assistance. Additionally, relevant ministries and government agencies are actively engaged in emergency relief operations, including logistical support, evacuation efforts, search and rescue operations, and medical services. To mitigate further risks, BNPB in collaboration with BMKG and the Indonesian Air Force (TNI AU), continues to conduct weather modification operations to reduce the impact of ongoing rainfall and prevent further deterioration of conditions in the affected areas.
HYDRO-METEO-CLIMATOLOGICAL:
For the past week, data from the ASEAN Specialised Meteorological Centre (ASMC) indicated medium to high 7-day average rainfall across the Maritime Continent, which includes Brunei Darussalam, Indonesia, Malaysia, and the Philippines. As of this report, two tropical disturbances (TCs IVONE and JUDE) are being monitored. According to the latest forecast models, these two disturbances are not anticipated to directly affect the weather situations in the ASEAN Region (JTWC).
GEOPHYSICAL:
Seven (7) significant earthquakes (M>5.0) were recorded by Indonesia’s Badan Meteorologi, Klimatologi, dan Geofisika (BMKG), Myanmar’s Department of Meteorology and Hydrology (DMH), the Philippine Institute of Volcanology and Seismology (PHIVOLCS), and Thai Meterological Department (TMD). Mount Ibu (alert level III), Dukono (alert level II), Lewotobi Laki-laki (alert level III), Semeru (alert level II), and Marapi (alert level II) in Indonesia, and Kanlaon (alert level 3), Taal (alert level 1), and Mayon (alert level 1) volcanoes in the Philippines reported recent volcanic activity according to Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) and PHIVOLCS.
OUTLOOK:
According to the ASEAN Specialised Meteorological Centre (ASMC), for the coming week, wetter conditions are predicted over much of the Maritime Continent. For the regional assessment of extremes, there is a small increase in chance for very heavy rainfall event to occurs over southern Thailand, Peninsular Malaysia, northern Sumatra, northern Philippines, and southeastern Mainland Southeast Asia; and a small increase in chance for extreme hot conditions to occurs over Nusa Tenggara, Java, northern Papua, central parts of the Philippines. La Niña conditions are present, with a transition to ENSO neutral predicted by April-May 2025. La Niña conditions tend to bring wetter than average conditions to much of the Maritime Continent at the seasonal timescale during the Northeast Monsoon period, and to much of the ASEAN region during the subsequent inter-monsoon period
Sources:
ASEAN Disaster Monitoring & Response System (DMRS); ASEAN Specialised Meteorological Centre (ASMC); Joint Typhoon Warning Centre (JTWC);
Indonesia: BNPB, BMKG, PVMBG;
Malaysia: NADMA;
Myanmar: DMH;
Philippines: NDRRMC, PHIVOLCS, DSWD;
Thailand: DDPM, TMD
Various news agencies.
