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  • Field trip to epicentral areas of Central Apennines, Italy, earthquakes from 19-22 July, 2017

    If you are interested in visiting the epicentral areas of the recent earthquakes in the Central Apennines, Italy, this is your chance: A four days field trip will be held from 19-22 July, 2017, led by researchers who have studied the earthquake effects in detail. The trip focusses on the fault system that ruptured during the 1997 Umbria Marche, 2009 L’Aquila, and 2016 Norcia events. The trip is organised by scientists from Italy, France, UK, and Greece, and supported by a number of universities, state agencies, and INQUA, with the Università di Camerino as the main coordinator.

    More information will be published soon. more

  • Special Session at SSA2017 in Denver on Toppled and Rotated Objects

    A special session on Toppled and Rotated Objects in Recent, Historic, and Prehistoric Earthquakes will be held during the upcoming 2017 Annual Meeting of the Seismological Society of America in Denver, Colorado from 18-20 April 2017.  Session Chairs will be Klaus-G. Hinzen and Rasool Anooshehpoor.

    The main purpose of the session is to bring together researchers with diverse backgrounds (e.g., seismology, engineering, history, heritage conservation) who are interested in the behavior of objects, monuments, or simple structures during earthquakes and the stories which deformed, rotated or toppled objects can tell. The session will cover all aspects of toppled or rotated objects or simple structures which have suffered heavy deformation or damage during earthquakes. Topics will include: (1) observations, (2) documentation, (3) model building, (4) restoration, (5) mapping, and (6) correlation with geology.

    Recent earthquake research has postulated correlation between the reaction of objects (monuments, columns, tombstones, etc.) and the seismic source in addition to local effects due to geological site conditions. As the laws of physics are time invariant, knowledge gained in reconnaissance surveys from well-studied instrumental earthquakes can reveal information about ground motions during historical and prehistorical earthquakes. Particular interest will be directed to man-made structures; however, due to similarities of the techniques used to study precariously balanced rocks and speleothems, contributions from these fields are also welcome.

    The deadline for all proposed presentations, invited or otherwise, is 5 pm PST January 11, 2016.  All abstracts must be submitted by the deadline. Submitting abstracts through the online submission system only (There is a submission fee of $80 for regular attendees, $40 for students).

     

    There are lots of other interesting sessions on earthquake geology, paleoseismology and related topics at the SSA meeting, make sure to check the full programme: http://meetings.seismosoc.org/special-sessions/

  • Special Issue in Annals of Geophysics on the Amatrice earthquakes

    Annals of Geophysics has just published a special issue on the devastating Amatrice Earthquake series in Central Italy: Vol 59, Fast Track 5 (2016): The Amatrice seismic sequence: preliminary data and results.

    The special issue, edited by Marco Anzidei and Silvia Pondrelli, contains lots of field reports, first assessments, and plenty of primary data. Plus, it’s all OPEN ACCESS! more

  • Preliminary Map of Co-Seismic Landslides for the M 7.8 Kaikoura, New Zealand Earthquake

    The M7.8 Kaikoura Earthquake in New Zealand produced one of the most complex ruptures ever observed, involving many different faults. Earthquake environmental effects include up to 10 m offset at the Kekerengu Fault, secondary ruptures, a tsunami, coseismic uplift, landslides and rockfalls, liquefaction, and maybe even earthquake lights. Lots of blogs and websites provide coverage on this earthquake, e.g. Geonet, the Landslide Blog, and The Trembling Earth. Our colleagues from the Research Group on Earthquake Geology in Greece worked on the landslides that happened during the earthquake. George Papathanassiou sent me the link to their Preliminary Map of Co-Seismic Landslides for the M 7.8 Kaikoura, New Zealand Earthquake. more

  • Earthquakes in Italy: Field photos by Paolo Galli

    Our colleague Paolo Galli is in the epicentral area of the M6.6 Italy earthquake and he sent us some amazing images. I’ll just reproduce them here without further comment, they speak for themselves. Captions by Paolo. Thanks a lot Paolo, and stay safe! more

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

    A lot of new papers have been published on paleoseismology, earthquake geology, active tectonics and tsunamis last month. We have research on slowly deforming regions, on the active tectonics of Mexico, New Zealand, Armenia, and Iran, new data from the Kumamoto earthquake, plus some marine/coastal paleoseismology and tsunami studies. Enjoy reading!

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  • Report on the coseismic effects of the 24 August 2016 Amatrice Earthquake

    The EMERGEO Working Group has conducted extensive field work after the 24 August 2016 Amatrice Earthquake in Italy and put together a report on the coseismic effects. The report is in English and can be downloaded from the INGV earthquake Blog here: PDF (6.1 mb)

    The report includes data on environmental earthquake effects like surface ruptures, fractures, landslides, and rockfalls. More than 2400 data points have been collected.

    Please cite the report as follows:

    • EMERGEO Working Group (2016). The 24 August 2016 Amatrice Earthquake: Coseismic Effects. doi: 10.5281/zenodo.61568

    The EMERGEO Working Group consists of Pucci S., De Martini P.M., Nappi R., Pantosti D., Civico R., Ricci T., Moro M., Cinti F., Brunori C.A., Di Naccio D., Sapia V., De Ritis R., Gori S., Falcucci E., Caciagli M., Pinzi S., Villani F., Gaudiosi G., Burrato P., Vannoli P., Kastelic V., Montone P., Carafa M., Patera A., Vallone R. (all INGV) and Saroli M., Lo Sardo L., Lancia M. (University of Cassino and southern Lazio).

    Thanks to Francesca Cinti for pointing me to this!

     

  • Special session on the Amatrice Earthquake at the Congresso Società Geologica Italiana, 7 September, Napoli

    There will be a Special Session on the Amatrice Earthquake of 24 August at the Congresso Società Geologica Italiana, 7 September, 2016, in Napoli. See http://www.sginapoli2016.it/home/ for the congress details.

    Session programme:

    Il terremoto del centro Italia del 24 agosto 2016 7 settembre 2016, ore 20.00, Aula tbd

    Chairmen: Carlo Doglioni, Alessandro Maria Michetti

    • 20.00 – INGV Amatrice working group : La sequenza sismica di Amatrice 2016
    • 20.10 – Bonano M., Castaldo R., Casu F., De Luca C., De Novellis V., Lanari R., Manunta M., Manzo M., Pepe A., Pepe S., Tizzani P., Zinno I. : Deformazione superficiale associata al terremoto del centro Italia del 24 agosto 2016: primi risultati da interferometria radar dallo spazio
    • 20.20 – Lavecchia G., Brozzetti F., Boncio P., de Nardis, Cirillo, Ferrarini: controllo strutturale sulla sequenza sismica di Accumoli 2016 – analisi preliminare
    • 20.30 – Blumetti A.M., Bonadeo L., Brunamonte F., Comerci V., Cowie P., Di Manna P., Ferrario M.F., Faure Walker J., Frigerio C., Fumanti F., Gregory L., Guerrieri L., Iezzi F., Livio F., McCaffrey K., Michetti A.M., Mildon Z., Phillips R., Piccardi L., Pompili R., Rhodes E., Roberts G., Vittori E., Walters R.J., Wedmore L., Wilkinson M. : Rotture al suolo ed effetti ambientali associati al terremoto del centro Italia del 24 agosto 2016: risultati preliminari e work in progress.
    • 20.40 – Galli P. et al. : Distribuzione dell’intensità macrosismica e implicazioni sismotettoniche del terremoto del centro Italia del 24 agosto 2016:
    • 20.50 – Amanti M. : Eventi franosi nell’area epicentrale del terremoto di Amatrice.
  • New papers on paleoseismology, tsunami, and active tectonics (July 2016)

    Today’s paper round-up is rather short. Maybe this is due to the start of the field work season and many editors being involved in field research, maybe it’s just holiday season. Maybe I’ve missed some papers because I have been in the field, too. However, there are some very interesting studies, especially concerning tsunamis. Enjoy reading and please tell me what I’ve missed in the comments.

    more

  • Classification of earthquake-induced landslide event sizes

     

    Some weeks ago we published a new study on the classification of earthquake-induced landslide event sizes based on seismotectonic, topographic, climatic and geologic factors. Our idea was that this classification could be used to help improve seismic hazard assessment by contributing to a better prediction of landslide hazards induced by an earthquake when the geologic, topographic and climatic context is well defined. Possible applications could be the short-term prediction right after an earthquake or scenario modeling, e.g. for critical infrastructure. Since earthquake triggered landslide event sizes are also an important proxy for the estimation of magnitude and intensity of past earthquakes, I thought our study might be interesting for the paleoseismicity community as well, and so I put together a brief summary.

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