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Volcanic activity recommenced in May, 1883 and continued into August, the first eruptions appearing on the northern, Perbuatan volcano. The number of active vents increased on both the northern volcanoes. On the 26 th and 27 th August series of cataclysmic explosions occurred which were heard 3500 miles away as far away as South Australia and Ceylon, was recorded as of the world's biggest explosion the force of 100.000 hydrogen bombs, They generated tsunamis (tidal wave) crashed ashore and devastated hundreds of town and village, reaching almost 10 miles inland in some places. The resulting killer waves at speed up to a 350 miles per hour and reached height of 135 feet that were registered even in the English Channel, 11.000 miles away and which in the Sunda -

In the aftermath of the explosion only about a third of Krakatau remained. The northern two thirds, including the volcanoes Perbutan and Danan and the northern half of the Rakata Volcano, were gone. In their place was a collapsed crater (caldera) 200m beneath the sea, covering an area of about 28 square kilometer. The remaining, southern part of Rakata was left as approximate half – cone with an almost perpendicular cliff from the summit (813 m) to the sea, providing a natural, geological section through the volcano. The other two islands, Sertung and Panjang, were enlarged considerably ( Sertung doubled in size) by the glowing ash and pumice which smothered them to a depth of 30 meters. On Rakata, the south and west coasts were were extended almost a kilometer-