Qualla: When the Banda Sea Stood Up: Ambon's 1674 Megatsunami

When the Banda Sea Stood Up: Ambon's 1674 Megatsunami: Introduction

Thu, 02 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. The bells of Victoria Castle began to ring on their own. It was Saturday evening, February 17, 1674, around 7:30 p.m., and the residents of Ambon Island were celebrating the Chinese Lunar New Year when the ground lurched hard enough to knock people off their feet. Within minutes, seventy-five stone buildings had collapsed. Water erupted from wells and burst through cracks in the earth, some jets reaching six meters into the air, carrying blue clay and sand from deep underground. And then came the sound - a roar from the sea that eyewitnesses would later struggle to describe. On the Hitu peninsula, the wave that followed may have reached 100 meters, nearly topping the coastal hills. It was the largest tsunami ever recorded in Indonesian history, and it would be documented by a man who had already lost his sight.

Image: Mikenorton | CC BY-SA 3.0

When the Banda Sea Stood Up: Ambon's 1674 Megatsunami: The Blind Seer's Account

Thu, 02 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. Georg Eberhard Rumphius was a German-born naturalist working for the Dutch East India Company on Ambon. He had arrived in 1654, drawn not by commerce but by the staggering biodiversity of the Spice Islands, and had spent two decades cataloging plants, shells, and minerals with ob...

Image: Mikenorton | CC BY-SA 3.0

When the Banda Sea Stood Up: Ambon's 1674 Megatsunami: A Wave Beyond Reckoning

Thu, 02 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. What struck the northern coast of Ambon Island that night was not an ordinary tsunami. On the Hitu peninsula, the waves were estimated to have reached heights of up to 100 meters - a figure so extreme that modern scientists initially questioned it. Recent research has offered an ...

Image: Mikenorton | CC BY-SA 3.0

When the Banda Sea Stood Up: Ambon's 1674 Megatsunami: The Earth Itself Bled

Thu, 02 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. Before the wave hit, the earthquake had already transformed the landscape. Rumphius's account describes water shooting upward from wells and fissures in the ground, some fountains reaching impressive heights. Blue clay and sand erupted alongside the water - material from deep geo...

Image: Mikenorton | CC BY-SA 3.0

When the Banda Sea Stood Up: Ambon's 1674 Megatsunami: Rumphius and the Unfinishable Book

Thu, 02 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. The earthquake that killed his family did not stop Georg Eberhard Rumphius. Blind and grieving, he returned to his life's work: the Herbarium Amboinense, a comprehensive catalog of the plants of the Moluccas that would eventually describe some 2,000 species. He dictated for anoth...

Image: Mikenorton | CC BY-SA 3.0

When the Banda Sea Stood Up: Ambon's 1674 Megatsunami: The Ground Remembers

Thu, 02 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. Ambon Island sits in one of the most seismically active regions on Earth, at the collision zone of the Australian, Pacific, and Philippine Sea tectonic plates. The 1674 event was not the first earthquake to strike the Maluku Islands, nor would it be the last - an 1852 Banda Sea e...

Image: Mikenorton | CC BY-SA 3.0