• A Holocene surface rupture in Germany

    I am quite happy that our new paper has finally been published in GJI. We worked on a fault between Aachen and Cologne in Germany and found that there has been a surface rupturing earthquake less than 9000 years ago, and possibly not much older than 2500 years BP. The area is of interest also because in 1755/56 a series of damaging earthquakes hit Düren and its surroundings – these are the strongest historical events in Germany that we know of. The quakes were felt as far away as Berlin, Strasbourg, and London, yet there were no primary ruptures. “Our” quake must have been much stronger… more

  • Google/IGME

    Version 3 of the Quaternary Active Faults Database of Iberia (QAFI) available

    Great news reached us from Spain! Our colleague Julián Garcia Mayordomo spread the news that an updated version of the Quaternary Active Faults Database of Iberia (QAFI) is now available online. QAFI has a GoogleMaps-based interface with clickable features providing loads of content on fault geometry, fault mechanism, slip-rate, historical and pre-historical seismicity, geomorphology, compilers, further references and much more. Truly a wonderful tool, congratulations!

    QAFI is hosted by IGME and can be found here: http://info.igme.es/qafi/ more

  • Michael KettermannAll rights reserved.

    New papers on paleoseismology, tsunami, and active tectonics (Feb 2016)

    Here’s the February edition of my paper recommendations. This time we have:

    • Paleoseismology in Germany and Nepal (the latter with a focus on charcoal dating techniques),
    • Tsunamis in Greece, Portugal, Israel and Alaska,
    • Turbidites in Portugal,
    • New insights into the geodynamics of Mozambique,
    • Fault rheology in Iran,
    • Rupture jumps on strike‐slip faults, and
    • A MATLAB tool for seismic hazard calculations.

    Enjoy!

    more

  • Dan Ponti, USGS

    IRSN report on the Napa Earthquake, California (M6, 2014-08-24)

    Our colleagues Stéphane Baize and Oona Scotti from the French IRSN finished a report on the 2014 Napa Earthquake: Post-seismic survey report, with special focus on surface faulting. On 24 August 2014, an earthquake of magnitude Mw6 occurred on the West Napa Fault in shallow depth. The quake caused significant damage, an interesting pattern of surface ruptures, and the immediate attention of hundreds of geologists. The primary and secondary effects were mapped only hours after the event, which turned out to be extremely important – a large amount of afterslip was recorded in the following days. The earthquake was not only recorded by a huge seismometer network, but the ground motion was also captured by GPS sensors and InSAR images. The new IRSN report is especially concerned with the surface faulting hazard, since this agency is responsible for the safety of nuclear installations in France.  more

  • Paleoseismology & active tectonics sessions at the IASPEI-LACSC meeting 20-22 June, 2016, San Jose, Costa Rica

    From 20-22 June, 2016, the IASPEI – Regional Assembly of the Latin-American and Caribbean Seismological Commission – LACSC will  be held in San Jose, Costa Rica. There will be some very interesting sessions on active tectonics, paleoseismology, seismic hazard, and intraplate faults: more

  • New papers on paleoseismology (Jan 2016)

    Plenty of paleoseismology papers have been published in late 2015 and early 2016 already! Especially those on the Gorkha earthquake made it to the news (Science and NatureGeoscience), but there is much more to discover. Check them out and – as always – tell us what we’ve missed. more

  • 7th PATA Days, Crestone, CO, 30 May – 03 June, 2016

    Dear friends and colleagues,

    The 7th International Workshop on Paleoseismology, Active Tectonics, and Archaeoseismology (PATA Days) will be held in the USA from 30 May – 03 June, 2016. The workshop is sponsored by the INQUA-TERPRO Commission and mainly organized by James McCalpin. The workshop includes several excursions and we welcome presentations on a broad list of topics related to seismic hazards and active tectonics: more

  • Guest blog: “Photogrammetry for Paleoseismic Trenching” by Nadine Reitman (USGS)

    A few weeks ago, Nadine Reitman (USGS) published an interesting paper about the use of Photogrammetry for Paleoseismic Trenching in BSSA. In this guest blog she shares her key findings and explains how to minimise errors without spending too much time measuring control points. Thanks Nadine!

    Structure-from-motion (SfM) is now routinely used to construct orthophotos and high-resolution, 3D topographic models of geologic field sites. Here, we turn SfM on its side and use it to construct photomosaics and 3D models of paleoseismic trench exposures. Our results include a workflow for the semi-automated creation of seamless, high resolution photomosaics designed for rapid implementation in a field setting and a new error analysis of SfM models. more

  • E. Hintersberger

    EGU deadline tomorrow

    Just a friendly reminder that the deadline for abstract submission for the EGU general assembly 2016 in Vienna is tomorrow, January 13th at 13:00 CET/12:00 GMT. If you are still looking for a session to submit your abstract to, please have a look at our session about Active Faults and the Earthquake Cycle (TS4.2/NH4.16/SM3.8)

    By the way, the Vienna Basin is the perfect place to discuss active faults, as you see on our newest gravel pit outcrop. If you interested in having a closer look at this fault during the EGU – let me know…

    Hopefully see you soon in Vienna,

    Esther, Kris, Matthieu, Angela

    more

  • Paleoseismology & Tsunami papers – Christmas edition

    This is this year’s last issue of my paper round-up, and it includes some pretty interesting stuff. Our Greek colleagues published a report on the liquefaction caused by the 2014 Lefkada earthquakes, just in time with the recent earthquake that hit more or less the same area again (Papathanassiou et al., and see earlier posts here). Long et al. published a paper on iceberg-induced tsunamis, found in the sedimentary record – that’s a great story, isn’t it? Jacobson’s PhD on the Lake Heron Fault (NZ) is an interesting read, and Iván Sunyol’s paper on paleoseismological trenches in Mexico is especially interesting for those who attended the 2012 Morelia meeting. Zhou et al. come up with a great dataset of Pléiades imagery from the El Mayor-Cucapah Quake, Calais et al. have a close look on the northeastern Caribbean, and finally, Kufner et al.’s paper is about the collision between India and Asia deep below the Pamir and Hindu Kush.

    Enjoy reading and Merry Christmas!

    more

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