Natural Hazards Commission Toka Tū Ake’s Post

Recently released research study and analysis of earthquake data featuring TexNet Guo‐chin Dino Huang, Alexandros Savvaidis, and Yangkang Chen, show that seismic activity is moving northeast in Midland Basin of Texas. Please read UT News publication here: https://lnkd.in/gg_a46Ek The research article is published in the journal Seismological Research Letters (https://lnkd.in/gZdb-V58).

Want to discuss earthquakes across research methods, while taking in the pleasant spring air in Alaska? Consider submitting to our session at SSA!! Check out the full program and submit an abstract here: https://lnkd.in/g2Vs7WiA. Session Title: Learning Across Geological, Geophysical & Model-Derived Observations to Constrain Earthquake Behavior Description: Earthquakes are dynamic events, but leave permanent markers of rock deformation and displacement. Geologic field studies identify these permanent markers, often used to determine the magnitude of slip in past earthquakes and combined with dating techniques to determine long-term rates over multiple earthquake cycles. Geophysical methods track ongoing plate motions and earthquake-cycle deformation captured by satellites using techniques involving GPS and InSAR. Analog and numerical models capture long-term geologic deformation and/or short-term dynamic behavior associated with earthquakes. However, in order to best advance both seismic hazard mitigation and earthquake science, the methods and results from these different lines of inquiry should be integrated and well understood by all. This is critical as we face the challenge of accounting for complex fault geometry and ruptures, off-fault damage, and distributed deformation, all of which have been revealed as common features in recent earthquakes. Modeling can fill gaps in observational data, target future field sites, and help determine the processes responsible for observed deformation features. Likewise, observational data is critical to characterizing earthquake behavior and provides necessary constraints on modeling input and output. This session aims to bring together scientists from these different lines of study to facilitate mutual understanding and collaboration. We encourage submissions that are methods- and/or results-based studies across structural geology, paleoseismology, Quaternary geology, geodesy, and modeling of fault behavior and earthquake dynamics. Conveners: Elizabeth Madden (SJSU), Kim Blisniuk (SJSU), Roland Burgmann (UC Berkeley)

"I study earthquakes and the geological structures in which they occur—faults. Faults are cracks in the ground where energy is released during earthquakes. The three-dimensional structure of a fault directly controls the type of earthquakes that occur on it as well as the way those earthquakes shake the ground. Understanding these motions and the location, size, and interconnectedness of fault systems is a critical part of preparing for seismic activity. Faults can be cryptic targets of study because they act on geologic time scales. It can take hundreds of years for enough energy to build up and be released in a large earthquake. In some cases, we’ve built entire cities on top of active faults without knowing much about them. We can underestimate how large a fault is or if faults connect with each other below the earth’s surface—or we might not even know a fault exists." Natasha Toghramadjian is a PhD student in the Department of Earth and Planetary Sciences at Harvard Griffin GSAS. She discusses her research modeling active fault systems that have the potential to cause devastating earthquakes, how she uses an unlikely data source to further scientific research, and how her experience with the Harvard Catholic community has been a mainstay in her life in graduate school.

Low-frequency earthquakes aren't much to look at (and they're hard to find), but they serve as essential seismological probes of deep-seated faulting. In this case, the low-frequency earthquakes reveal otherwise undetectable slow slip in the Hikurangi Subduction Zone, about 50 km beneath the Kaimanawa Ranges. https://lnkd.in/gG2yb2fM It's wonderful to see this collaboration between Massachusetts Institute of Technology, GNS Science, and Victoria University of Wellington, spear-headed by William Frank and Florent Aden, come to fruition, the culmination of a project that first started with a Catalyst (Seeding) grant from the Royal Society Te Apārangi. #seismology #geodesy #subduction #nzscience

"Water released from subducting oceanic plates influences the formation of volcanoes and earthquakes on Earth’s surface." Have a read of this volcanology news below. https://zurl.co/lizT #volcanology #earthscience #geophysics

🌟 Parkfield Earthquake Open Science Alert! 🌟 Kurama Okubo, Brent Delbridge, and I just published an open-access research paper analyzing 22 years of continuous seismic data at Parkfield, California. 🔬 Beyond the signals of earthquake damage seen in previous work (Brenguier et al., 2008; Wu et al., 2016) and meteorological influences, we've identified a long-term trend: seismic velocities today are notably higher compared to pre-2004 Parkfield earthquake levels. 📈 🤔 What does this mean? Our interpretation points to an interseismic compression mechanism caused by strain loading. This discovery marks the first time changes in seismic velocities have been measured over the timescale of interseismic periods, shedding new light on the dynamics of seismic activity. 💡 But that's not all! Our analysis sets a new standard for rigor and reproducibility. We've processed the data to eliminate spurious effects, ensuring the reliability of our findings. Kurama Okubo developed an impressive set of tools in #Julia, run on #Frontera at Texas Advanced Computing Center (TACC), Cloudstore-hosted data products, GitHub code testing of the entire workflow for full reproducibility. 👏 This research advances our understanding of seismic behavior and underscores the importance of open science and transparent methodologies in driving meaningful discoveries. 🌟 🔗 Check out our paper here: https://lnkd.in/gFBqFEYe Check out the code repositories: https://lnkd.in/g8N9Zca3 https://lnkd.in/gEVtwCux https://lnkd.in/gjdjYZ2U #Seismology #OpenScience #Parkfield #Geophysics #Earthquakes

The publications for the Cascadia Subduction Zone special issue are starting to come out, check them out here: https://lnkd.in/edMwANmx Don’t miss out on contributing to this Seismica special issue! Scope, topics, publication types, and conditions: https://lnkd.in/eTDwKyaS #cascadia #SubductionZone #OpenAccess #DiamondOpenAccess #peerreviewed #Seismology #earthquake #EarthquakeScience 

U.S. Geological Survey (USGS) Time and again I have been telling that, the deep quakes ( at 600+ km depth) are not due to subduction zone plates reaching that depth ,but due to tidal pull on deep water and magma. Now it is confirmed that there is water ,three times more than all oceans combined ,deep inside the Earth crust . the tidal pull application all level ,and deeper quakes are due to tidal pull exceeding threshold limit at deeper level up to 700 to 800 kms. https://lnkd.in/gXC-KuqT

⚛️🚀 A tsunami is a series of large ocean waves induced by mechanical disturbances like earthquakes, volcanic eruptions, landslides, or impacts. These waves have extremely long wavelengths and travel at high speeds across oceans or lakes. 👨🏻🏫 When approaching shallow coastal waters, the height of tsunamis significantly increase, leading to potentially devastating impacts on coastal communities, including flooding, destruction of infrastructure, and loss of life. 🚨 Nowadays, the development of early warning systems are crucial for mitigating tsunami risks. #science #engineering #geology #design #creativity #innovation #research #STEM 👨🏻🏫 Follow Felipe Ochoa Cornejo 👨🏻🏫🇨🇱 for more creative engineering, geology, science, and technology 🎥 By TED Talks

🆕A new article, published in the Journal Geophysical Research: Solid Earth, explores how the Adria microplate has influenced the geological changes in the Tyrrhenian Basin, the Apennines in Italy, and the Dinarides and Carpathians-Balkanides in Southeastern Europe. 👉The research strengthens the understanding of the continuous subduction and delamination processes occurring beneath the Apennines, with slabs showing a broken and complex geometry in depth due to their interaction with the currently active subduction beneath Calabria. 🔗Original article: https://lnkd.in/eh6-JkQf #Geosciences #AdriaPlate #SolidEarth #GlobalGeodynamics #Geodynamics