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Tag Archives: Hawaii Institute of Geophysics and Planetology

New evidence reveals source of 1586 Sanriku, Japan tsunami

A team of researchers, led by Rhett Butler, geophysicist at the University of Hawaiʻi at Mānoa, re-examined historical evidence around the Pacific and discovered the origin of the tsunami that hit Sanriku, Japan in 1586—a mega-earthquake from the Aleutian Islands that broadly impacted the north Pacific. Until now, this was considered an orphan tsunami, a historical tsunami without an obvious …

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Retracing the origins of a massive, multi-ring crater

An international team of scientists, led by researchers at the Massachusetts Institute of Technology (MIT), have reconstructed the extreme collision that created one of the moon’s largest craters, 3.8 billion years ago. Jeffrey Taylor, a professor in the University of Hawaiʻi at Mānoa School of Ocean and Earth Science and Technology, was among the scientists who retraced the moon’s dramatic …

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International collaboration expands knowledge of munitions dumped at sea

A special issue of the academic journal Deep-sea Research II, published recently, is devoted to expanding understanding of the global issue of chemical munitions dumped at sea. The publication was edited by Margo Edwards, interim director of the University of Hawaiʻi at Mānoa’s Hawaiʻi Institute of Geophysics and Planetology, and Jacek Beldowski, Science for Peace and Security MODUM (Towards the …

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Novel tsunami detection network uses navigation systems on commercial ships

Accurate and rapid detection and assessment of tsunamis in the open ocean is critical for predicting how they will impact distant coastlines, enabling appropriate mitigation efforts. Scientists from the University of Hawaiʻi at Mānoa School of Ocean and Earth Science and Technology (SOEST) are using commercial ships operating in the North Pacific to construct a network of low-cost tsunami sensors …

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UH researchers shed new light on the origins of Earth’s water

Water covers more than two-thirds of Earth’s surface, but its exact origins are still something of a mystery. Scientists have long been uncertain whether water was present at the formation of the planet, or if it arrived later, perhaps carried by comets and meteorites. Now researchers from the University of Hawaii at Manoa, using advanced ion-microprobe instrumentation, have found that …

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U.N. task force says new ocean telecom cables should be ‘green’

global undersea communications cable infrastructure

The global system of submarine telecommunications cables that supports our connected world is deaf, dumb and blind to the external ocean environment – and represents a major missed opportunity for tsunami warning and global climate monitoring, according to UH scientists and a United Nations task force. “For an additional 5-10 percent of the total cost of any new cable system …

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Massive debris pile reveals risk of huge tsunamis in Hawaii

1946 Hawaii tsunami

A mass of marine debris discovered in a giant sinkhole provides evidence that at least one mammoth tsunami, larger than any in Hawaiʻi’s recorded history, has struck the islands, and that a similar disaster could happen again, new research finds.  Scientists, led by Rhett Butler, Director of the Hawai‘i Institute of Geophysics and Planetology (HIGP) at UH Mānoa, are reporting …

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Water in Moon rocks provides clues and questions about lunar history

Pyroclastic glass beads

A recent review of hundreds of chemical analyses of Moon rocks indicates that the amount of water in the Moon’s interior varies regionally – revealing clues about how water originated and was redistributed in the Moon.  These discoveries provide a new tool to unravel the processes involved in the formation of the Moon, how the lunar crust cooled, and its impact …

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Space dust carries water and organic compounds

Interplanetary dust particles and sun

Researchers from the University of Hawaii at Manoa (UHM) School of Ocean and Earth Science and Technology (SOEST), Lawrence Livermore National Laboratory, Lawrence Berkeley National Laboratory, and University of California – Berkeley have discovered that interplanetary dust particles (IDPs) could deliver water and organics to the Earth and other terrestrial planets. Interplanetary dust, dust that has come from comets, asteroids, …

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Infrasound informs fresh look at Russian meteor fall

Chelyabinsk Infrasound

The Russian meteor that rocked the world on 15 February 2013 appeared 30 times brighter than the sun, and we may be in for more airbursts of this size than we had previously anticipated.  These are some of the new findings about the Chelyabinsk meteor fall included in the Nov. 6 electronic edition of the scientific journal Nature. Much of …

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