earthquake, quake, seaquake, cyclone, tidal wave, temblor, typhoon, disaster, floods, trembler, volcanic eruption, andaman, aftershock, diaster, hurricane, flashflood, waves, storm, nicobar islands, tremor, tornado, flash flood, andaman islands, calamity, mudslide, catastrophe, mudflow, andaman sea, aru islands, coastlines, lahar, riptide, landslides, devastation, eruption, inundations, volcano, honshu, cocos islands, samoan islands, minamata, phet, bonin islands, cataclysm, leyte island, twister, richter scale, avalanche, pandemic, miyagi, andreanof islands, gulf coast, irrawaddy river, coastal, earth tremor, sumatran, ternate, mount asama, seismologic, tuvalu, archipelago, konoe, seiche, leatherback turtle, pinatubo, hodr, floodwaters, tropical cyclone, niigata, blizzard, rockslide, northeaster, tragedy, magnitude, crisis, foreshock, hyogo, atolls, seafloor, cloudburst, ryukyu islands, infernos, maldive islands, upolu, deluge, seawall, solidum, chatham islands, leatherback, meltdown, coral reef, sendai, great barrier reef, shikoku, submergence, famine, telethon, islands, katrina, kyushu, celebes sea, whale, tsunamis, earthquakes, epidemic, landslide, explosion, spill, hurricanes, quakes, conflagration, flood, powerhouse, baroclinic, coupled, dimensional, ellipsoidal, geologic, geological, heat, hypersonic, magnetohydrodynamic, mhd, onedimensional, pendular, periodic, propagating, propagative, runoff, sawtooth

follow, swamp

moving ridge, wave