REGIONAL SUMMARY:
In the fifteenth week of 2025, the ASEAN region experienced 54 disaster events, including droughts, earthquake, floods, landslides, storms, and wind-related incidents, impacting several member countries. Affected nations included Indonesia, Malaysia, Philippines, Thailand, and Viet Nam. In Indonesia, Badan Nasional Penanggulangan Bencana (BNPB) reported flooding, landslides, storms and wind-related disasters, across various provinces, including Gorontalo, Jakarta, West Java, Central Java, South Kalmantan, Central Kalimantan, East Kalimantan, Maluku, North Maluku, West Nusa Tenggara, Riau, South Sulawesi, South Sumatra, and North Sumatra, drought in Subang (West Java), and M4.1 Earthquake in Bogor City (West Java). In Malaysia, Agensi Pengurusan Bencana Negara (NADMA) recorded flooding in Selangor, Sabah, and Johor. The Philippines’ National Disaster Risk Reduction and Management Council (NDRRMC) reported flooding and strong winds in Regions XII. Thailand’s Department of Disaster Prevention and Mitigation (DDPM) documented storm and wind-related disasters in several provinces, including Phayao, Amnat Charoen, Nakhon Sawan, Phetchabun, Kalasin, Singburi, Phatum Thani, Loei, Chaiyaphum, Ubon Ratchathani, Kalasin, and Suphan Buri. In Viet Nam, the Viet Nam Disaster and Dyke Management Authority (VDDMA) reported similar hazards, including floods, landslides, storms, and wind-related disasters in Lam Dong, An Giang, Binh Duong, Lai Chau, Lao Chai, Nghe An, Quang Tri, Son La, and Thua Thien Hue. Furthermore, emergency response efforts continue in Myanmar and Thailand following the impacts of the magnitude 7.7 Mandalay Earthquake.
HIGHLIGHT:
In Myanmar, as of 14 April 2025, the magnitude 7.7 Mandalay Earthquake, has resulted in 3,655 reported fatalities, 4,824 injuries, and 129 individuals still missing, according DDM. The earthquake has displaced approximately 199K people, with 42K currently sheltering in 145 temporary evacuation centres. Data collection and validation efforts are ongoing. The AHA Centre maintains close coordination with the Department of Disaster Management (DDM) of Myanmar through the In-Country Liaison Team (ICLT), as well as with supporting ASEAN Member States and partners, to ensure a well-coordinated and effective disaster response. As of 14 April, the total value of ASEAN relief items mobilised for the Mandalay Earthquake stands at USD 480,485.81. The ASEAN-ERAT has also been mobilised to assist DDM Myanmar in conducting rapid needs assessments, coordinating humanitarian efforts, and facilitating the delivery of incoming relief supplies. The ASEAN-ERAT team has successfully completed their mission to support emergency response operations in Myanmar. Representing all ten Member States, the team facilitated incoming relief items in Yangon and conducted rapid assessments in Nay Pyi Taw, Mandalay, and Sagaing. Further details are available in the AHA Centre Situation Update #6, #7, #8, and #9.
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, and Malaysia. As of this reporting, there is no significant active tropical cyclone being monitored in the ASEAN region (JTWC).
GEOPHYSICAL:
Eight (8) significant earthquakes (M>5.0) were recorded by Indonesia’s Badan Meteorologi, Klimatologi, dan Geofisika (BMKG), the Philippine Institute of Volcanology and Seismology (PHIVOLCS), Myanmar’s Department of Meteorology and Hydrology (DMH), and Thai Meterological Department (TMD). Mount Ibu (alert level III), Dukono (alert level II), Lewotobi Laki-laki (alert level III), Ili Lewotolok (alert level II), Raung (alert levelII), 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 western Mainland Southeast Asia and the northwestern Maritime Continent, while drier conditions are predicted over eastern Mainland Southeast Asia and parts of the northeastern Maritime Continent. For the regional assessment of extreme weather events, there is a moderate increase in chance of very heavy rainfall conditions to occurs over parts of western Mainland Southeast Asia. Furthermore, there is a moderate increase in chance of extreme heat conditions to occurs over much of the Philippines. La Niña conditions are likely transitioning to neutral. La Niña conditions tend to have a moderating effect on temperatures at this time of the year in Southeast Asia, even when transitioning to neutral.
Sources:
ASEAN Disaster Monitoring & Response System (DMRS); ASEAN Specialised Meteorological Centre (ASMC); Joint Typhoon Warning Centre (JTWC);
Indonesia: BNPB, BMKG, PVMBG;
Malaysia: NADMA;
Myanmar: DDM, DMH;
Philippines: NDRRMC, PAGASA, PHIVOLCS, DSWD;
Thailand: DDPM, TMD;
Viet Nam: VDDMA;
Various news agencies.
