For the eleventh week of 2022, a total of 52 disasters (35 floods, 6 landslides, 4 storms, and 7 wind-related) affected the region. Indonesia, Malaysia, the Philippines, Thailand, and Viet Nam have reportedly been affected. Heavy rainfall and overflowing of the rivers have caused flooding, rain-induced landslides, and wind-related events over Sumatra, Java, Kalimantan, Sulawesi, and Papua as reported by Indonesia’s Badan Nasional Penanggulangan Bencana (BNPB). For Malaysia, floods were reported by Agensi Pengurusan Bencana Negara (NADMA) in Pahang State. The Thailand’s Department of Disaster Prevention and Mitigation (DDPM) reported storms and winds in the Northern and Northeastern Regions of Thailand. The Viet Nam Disaster Management Authority (VNDMA) reported storms and winds in Nghe An Province of Viet Nam.
According to BNPB, heavy rainfall, strong wind, and the overflowing of the rivers since 14 March have caused flooding, rain-induced landslides, and wind-related events in Pandeglang Regency and South Tangerang City in Banten Province, West Jakarta City in DKI Jakarta Province, Sumedang and Karawang Regency in West Java Province, Pemalang, Sragen, Cilacap, Grobogan, Purworejo, Banyumas, and Kebumen Regency in Central Java Province, and Bojonegoro, Magetan, Blitar, Lumajang, Malang, Gresik, and Jember Regency in East Java Province. In total, 3 persons have been injured, 21,6K families (84.1K persons) have been affected, and 5.1K persons have been displaced in Banten, DKI Jakarta, West Java, Central Java, and East Java Provinces. Reports of damages include 15.6K houses, 3 bridges, 7 roads, 23 schools, 9 public facilities, 51 worship places, and 1.7K ha of agriculture areas. Meanwhile, in East Kutai Regency (East Kalimantan), flooding caused by heavy rainfall and overflowing of Sangatta River on 18 March cost the life of 1 individual, affected 5.3K families (16.9K persons), displaced 2K persons, and damaged 2.5K houses. Local disaster management agencies have carried out necessary actions and continue to monitor and assess the situation.
For the past week, data from the ASEAN Specialised Meteorological Centre (ASMC) showed high 7-day average rainfall spreading across Sumatra, Java, Kalimantan, Sulawesi, and Papua in Indonesia; Sarawak in Malaysia; and Luzon Island of the Philippines. As of reporting, Tropical Disturbance INVEST 91B (will be named ASANI) is located approximately 685 Km South-Southwest of Yangon, Myanmar. It is forecasted to move northward over the next 48 hours with possible landfall along the western coast of Myanmar. Tropical Cyclone CHARLOTTE and Tropical Disturbance INVEST 94S is forecasted to not directly impact ASEAN Region (BMKG, DMH, JTWC).
Eleven (11) significant earthquakes (M?5.0) were recorded in the region by Indonesia’s BMKG and the Philippine Institute of Volcanology and Seismology (PHIVOLCS). Mount Semeru (alert level III) in Indonesia, and Mount Taal (alert level 2), and Kanlaon (alert level 1) in the Philippines reported recent volcanic activity according to Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) and PHIVOLCS.
According to the ASEAN Specialised Meteorological Centre (ASMC), for the coming week, wetter conditions are expected over much of western and central Mainland Southeast Asia, and southeastern parts of the Maritime Continent (highest probability is over Myanmar, Thailand and Lao PDR); drier conditions are expected to develop over Sumatra; warmer conditions are expected over much of the western and central equatorial region. For the regional assessment of extremes, there is a moderate increase in chance for very heavy rainfall event to occur in western and central Mainland Southeast Asia, and southeastern parts of the Maritime Continent; moderate increase in chance in central Sumatra and western Borneo, and very likely in northern half of the Philippines for extreme hot conditions. La Niña conditions are still present in the Pacific but weakening. At the seasonal timescale, La Niña events tend to bring wetter conditions to much of the ASEAN Region.
ASEAN Disaster Monitoring & Response System (DMRS); ASEAN Specialised Meteorological Centre (ASMC); Joint Typhoon Warning Centre (JTWC)
Indonesia: BNPB, BMKG, PVMBG;
Viet Nam: VNDMA;
Various news agencies