海啸:tsunami 山崩:landslide 泥石流:mud-rock flow 雪崩:avalanche 火山爆发:volcanic eruption 地震:earthquake/tremor 海底地震:submarine earthquake 震级:magnitude/Richter scale 余震:aftershock 龙卷风:tornado/cyclone 飓风:hurricane 沙尘暴:sandstorm
