flooding, submergence, deluge, flashflood, landslip, overtopping, salination, floodwaters, subsidence, floodwater, lahar, landslides, namoi river, cyclones, beach erosion, rainfall, downpour, embankments, mudslide, overwash, flash flood, rains, murrumbidgee river, tsunamis, seepage, silting, mudflow, erosion, flood plain, devastation, seaquake, seiche, cloudburst, salinity, onrush, sinkholes, deltaic, soil erosion, floodplain, scamander, shoaling, dikes, disaster, tides, denudation, rainstorm, submersion, storm, tsangpo, coastland, calamity, levees, barcoo river, earth tremor, evacuations, hydrological, hailstorm, washouts, tropical cyclone, quake, monsoons, inland, earthquakes, drought, typhoon, coastal, temblor, catastrophe, eruption, snowfall, sinkage, reservior, freshet, swamping, backflow, damming, tidal wave, riversides, thundershower, epicentral, catchment, power outage, infestation, volcanic eruption, brahmaputra river, rivers, outages, receding, precipitation, heatwave, hurricane, tidal bore, scarcity, mahanadi, urbanization, liquifaction, overexploitation, overdevelopment, overflow, dieback, billabongs, eutrophication, inundations, floods, flood, spate, conflagrations, famines, conflagration, influx, avalanche, decimation, epidemic, epidemics, famine

debacle

geological phenomenon