Seismology Lighting Up Dark Fibre for Seismic Imaging Distributed acoustic sensing, or DAS, is a newly developed passive seismic technology that can transform telecommunication fibre-optic cable into linear arrays of ground motion sensors.
Geophysics Victorian Earthquake Round-up Last week's Woods Point earthquake in Victoria was a quite a surprise for most Australians outside the geophysical community and even among Earth scientists, an event of this magnitude was unexpected.
Seismology Australia surprised by moderate quake, but rumbling is not unusual On the morning of September 22, a magnitude-5.9 earthquake struck approximately 130 km northeast of Melbourne. Seismic waves were felt in Melbourne, Canberra, Sydney and Adelaide, and as far south as Tasmania.
Geophysics Australian Seismometers in Schools - Noise monitoring dashboard How we built a simple dashboard using Github actions with open source software and openly available (FAIR) data.
Education Lava Lamps & Thermochemical Convection Hands-on experiments explore the details of thermochemical convection. Build your own Lava Lamp and learn why the continents don't get sucked down into the deep Earth.
Geophysics Seeking The Truth Hidden In The Earth’s Lowermost Mantle If we were lucky to travel to the Earth’s centre, perhaps as part of an international crew of terranauts chosen to observe and investigate our planet’s interior…
Geophysics New Reference Earth Model: CCREM In these one-dimensional (1D) models, the Earth (or, as a matter of fact, any other planet) is divided into kilometres thick spherical layers, just like an onion on a much smaller scale
AuScope Distributed Acoustic Sensing in Australia's Downward Looking Telescope Seismic waves are being recorded in more detail than ever before. In this latest collaboration with the NASA Deep Space Network (DSN), researchers from The ANU and AuScope’s Earth Imaging and Sounding Program explain Distributed Acoustic Sensing (DAS) infrastructure .
Geophysics Probing the Australian-Pacific Plate Boundary: Macquarie Ridge in 3D (Updated) A team of Australian researchers are about to set off on a landmark voyage to discover more about the Earth beneath our oceans, and what triggers underwater earthquakes. Read live updates of the cruise as they go — both personal reflections and scientific background to the cruise.
Geophysics Unlocking the secrets of the sub-Antarctic underground Staff from the Australian Antarctic Division are now installing seismometers on the Macquarie island as part of the "Macquarie Ridge in the 3D" project.
Geodynamics A tight squeeze between tectonic plates The largest earthquakes occur at subduction zones, where one plate descends beneath another into the underlying mantle, at a convergent plate boundary. Some subduction zones seem to host more large
Geophysics Chatting about reconstructing 1 billion years of Earth evolution in Geology Bites podcast This is a transcript of a podcast with Oliver Strimpel from GeologyBites. We chat about the challenges and benefits of reconstructing Earth evolution over a billion years.
Geohazards Floods And Covid-19 In Timor-Leste Reveal Risks Of Interacting Hazards Flash floods, landslides, and rising rates of COVID-19 in Timor-Leste show how multiple hazards can interact with deadly consequences.
Geohazards Flooding And Landsliding In Timor-Leste: Linked Hazards In A Young Mountain Belt Timor-Leste and Indonesia were battered by tropical cyclone Seroja over the Easter period. Seven days of heavy rain and wind caused severe flooding and landslides.
Geodynamics East Australian Volcanism – interaction of plumes and subduction remnants Eastern Australia hosts a wide range of volcanic edifices, ranging from localised outcrops to lava fields and central volcanoes, mostly older in the North, younger in the South. Here we discuss potential controlling mechanisms.
Tectonics Modelling global precipitation since 250 million years ago We have developed a novel data-driven approach to reconstruct precipitation patterns through geological time, since the supercontinent Pangea was in existence. Our approach involves linking climate-sensitive sedimentary deposits such as
Seismology The inherited structures within the Australian lithosphere define the tectonic evolution along the Banda arc Integration of passive seismic images, geochemistry, and reconstruction of uplift from river profiles provide new findings on arc-continent collisional processes
Geophysics Seismological Models, mineral physics and spin transitions in the lower mantle The dominant variation of the physical properties of the Earth is with depth, though complex 3-D structures are present in the top 1000 km and near the core-mantle boundary.
Geodynamics The Earth's troubled childhood Continents host the oldest building blocks of the Earth's surface and keep a record of the processes that shaped it. A careful reading and high-performance computational modelling of the early, hotter Earth reveal a coming of age story.
Seismology Imaging the full lithosphere with earthquake sources When the seismic waves from a distant earthquake arrive in the vicinity of a seismic recording station they interact with the local structure and produce a variety of minor contributions accompanying the main arrival of a seismic phase.
Seismology Probing the Australian-Pacific Plate Boundary (Pt 8: Sailing Home) Unlike Sirens, who drew sailors to the rocks by their enchanted singing, causing their ships to sink, Nereids – the daughters of Doris and Nereus, the old man of the sea
Geophysics Probing the Australian-Pacific Plate Boundary (Pt 7: The hunt for MRO21) When you are pressed for time, the only thing you hope for is for things to go as smoothly as possible so that you can move on.
Geophysics Shallow earthquakes in Australia The Earth’s crust is made up of tectonic plates that are constantly in motion. Large, destructive earthquakes occur when accumulated energy at plate boundaries - where two plates are pushing against each other - is suddenly released.
Geodynamics How is 'social distancing' maintained between strike-slip faults? Haibin Yang, Louis Moresi and Mark Quigley provide a scaling relationship for the fault spacing in continental strike-slip shear zones.
Seismology Probing the Australian-Pacific Plate Boundary (Pt 6: A race against time in sub-Antarctic waters) ... probably the most challenging feature in the global ocean on which to deploy ocean bottom seismometers, which need to land onto a relatively flat surface ...
