This time I found a lot of studies on tsunamis, including a whole book on tsunamis that affected the Iberian Peninsula. Then there’s classical paleoseismology of course and tectonic geomorphology, but also some discussion on science communication and news about earthquakes in the European Alps. Enjoy reading!
moreAs Francesca has reported in her latest post, a lot of trenching is currently going on all around the world. Here you can read about previous trenching results that have now made it through review. Enjoy reading and have a great field season!
moreFollowing an un-systematic post-dinner doomscrolling I’m happy to declare May 2022 as the trenchiest month ever. Here’s some exhibits:
Safety first; if cozy and comfy it’s better.
The award goes to Stéphane Baize (@Stef_EQ_Geology) and their trenches along the Cévennes fault: look at the details in the photo… like “paleo” engraved in the wooden frame to prevent collapse of the trench wall. And what about the tent? 10/10 professional style.
Landscape photography award
The winner is Colca Canyon in Southern Peru, take a look at the pictures by Anderson Palomino (@AndersonRPT1) and Carlos Benavente (@clbenavente)
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Best flower structure award
No doubts here, easy win for Ian Pierce (@neotectonic) and their trenches in Azerbaijan. Follow him for stunning field photos and videos.
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Mud club
Mention goes to Jade Humprey (@ForFaultsSake).
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The tricks of the trade.
Learn them from Jonathan Obrist-Farner (@guateologist) uncovering the mysteries of the 1976 Motagua rupture in Guatemala
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Category “You don’t need a trench to find good stratigraphy”.
Prize goes to Gabriel Easton Vargas (@geastonvargas) and paleotsunami research in semiarid Chile
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Category “Let’s the student do the work”.
Terrific exhibit by Shreya Arora (@shryaarora) trenching in the Himalaya region
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Never without a nijiri gama.
Award is won by Sambit Prasanajit (@SPrasanajit) and their sites in S. Korea
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Fancy fence
The winner is PhD student Argelia Silva Fragoso (@Argy_sf) from Insubria university, digging trenches in Central Italy
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Sorry if I missed someone, I wish you all a safe and fruitful field season!
Our paper list is full of classic paleoseismic trenching studies from all over the world – fascinating to see how quickly the number of trenches is rising. We also have papers on tools & methodology, and on earthquake proxies that open new possibilities to study past large events. Don’t miss Ferrario et al. who compiled 15 years of research on earthquake environmental effects!
moreHere is the 2nd circular for the PATA Days in Southern France, September 2022.
First important deadline: 30 April for submitting the short abstract (300 words).
For more information visit http://patadays-2022.sciencesconf.org
Here we are with the latest list of papers on paleoseismology and active tectonics, and we start with a surprise: A published paper on the 8 January 2022 Ms 6.9 Menyuan earthquake! A mere three weeks after the event, Yang et al. have already managed to get their rapid report accepted. Spoiler: It includes an offset animal footprint trace in snow! But there’s a lot of other interesting stuff in the list, too – check it out!
moreFrontiers in Earth Sciences plans to publish a new Special Issue (Research Topic as they call it) on “Seismically deforming active plates above active subduction zones: geological, paleoseismological and geodetic perspectives”. Deadline for abstract submission 31 March, 2022. Guest editors of this SI are Alessandro M. Michetti, James McCalpin, Jenni Robertson, Silvia Brizzi, Jorien van Der Wal, and Marco Meschis.
Which journals do we normally chose for a neotectonics or paleoseismology paper? Sounds like a simple question, but the answer is not straight forward. Often, local journals are a great place, such as The New Zealand Journal of Geology and Geophysics, or society journals such as SRL, BSSA, and Quaternary International. Then there are the usual suspects: JGR, GJI, Tectonics, Tectonophysics, Geomorphology. If the story is a bit bigger we often go for EPSL or even the 4-page journals. Recently, several new players have appeared such as Frontiers or Scientific Reports, and I am also closely following the new diamond open access initiatives We Are Seismica and We Are Tektonika. In 1986, Wiley made an attempt to collect these kinds of studies in one place and launched NEOTECTONICS. Sadly, the journal only saw one single issue and was then discontinued. Today, you don’t find a trace of this journal any more, and searching for the single papers of the issue does not yield any results. Alan Nelson made me aware of the existence of this journal and somehow a copy found its way onto my desk. Here’s the list of papers that was published in the most exclusive of all neotectonics journals:
moreSoft-sediment deformation structures are often used as evidence for paleo-earthquakes. When several deformed horizons are present, one has to ask whether repeated slope failure at the sediment surface has built-up the stratigraphic record. Another option would be that a single failure event could have concurrently created surficial and sub-surface deformed horizons at different stratigraphic levels. The implications of these differing models are important for the timing of palaeo-earthquakes. In a new paper, Alsop et al. used the late Pleistocene Lisan Formation from the Dead Sea Basin to catalogue and establish key criteria that help distinguish surface versus sub-surface intrastratal deformation of soft-sediments. The paper is available for free for 50 days!
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Pa·le·o·seis·mic·i·ty [ pālē·ə·sīz·mĭs′ĭ·tē ] noun, plural -ties. Ancient earthquake activity.
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