The Geological Survey of India released a report on earthquake-triggered landslides following the M6.9 Sikkim Earthquake, 18 September 2011. A total of 210 landslides has been reported. That’s earthquake environmental effects!
A special issue on the Christchurch Earthquake has been published in Seismological Research Letters. That’s maybe something I should blog about in greater detail later, so here’s the news and the link only.
Let’s start with some good news: The first two Galileo satellites (Natalia and Thijs) will be launched today from Kourou. It’s a little behind the schedule (6 years) and the entire project has become a little more expensive than previously thought (1,600,000,000 €), but who cares? It will provide 1 m GPS resolution! 1 m!!!
There is one more Archaeopteryx! Really! Soemone who does not want his name to be told handed out the fossil to scientists. After a thoroughly investigation of that great piece of Solnhofen Plattenkalk, the anonymous collector will get back his bird. No, his dinosaur I mean. Ehm, his Archaeopteryx.
Dave Petley reported on a giant landslide in Iceland. It’s expected to have ~1,000,000 m³. See the amazing images, just great.
Based on a new inversion of InSAR data, De Natale et al. predicted that the Avezzano and Sulmona tectonic domains, in Central Italy, may anticipate by 15-20 yr the next large earthquake, as a result of stress transfer. Avezzano and Sulmona were razed by a large earthquake in 1915 and 1706, respectively.
Giuseppe De Natale, Bruno Crippa, Claudia Troise and Folco Pingue. Abruzzo, Italy, Earthquakes of April 2009: Heterogeneous Fault-Slip Models and Stress Transfer from Accurate Inversion of ENVISAT-InSAR Data. Bull. Seism. Soc. Am., 101(5), 2340-2354, 2011. DOI: 10.1785/0120100220.
9:00 The second day started with a great keynote, Chris Scholz talked about earthquake triggering and fault synchronization with examples from California and Iceland.
09:45 Next great keynote: Clark Burchfiel on the Wenchuan EQ!
A new paper published in Natural Hazards today discusses post-depositional changes of tsunamites. At sites in Thailand covered by sediments of the 2004 Sumatra tsunami, Szczuciński (2011) has documented significant changes in the deposits over the last seven years. Not only were the tsunamites altered, eroded or re-deposited by animals and seasonal rain, but also vanished in certain cases.
A new book with focus on paleoseismology has been published by GSA. Special Paper 479 – “Geological Criteria for Evaluating Seismicity Revisited: Forty Years of Paleoseismic Investigations and the Natural Record of Past Earthquakes” is edited by Franck A. Audemard M., Alessandro Maria Michetti and James P. McCalpin. Again, a lot of interesting reading stuff for your flight to Corinth…
It is our greatest pleasure to announce that a new special issue on paleo- and archaeoseismology has been published. The special issue of Quaternary International mainly consists of contributions from a selection of those presented during the first International Workshop on Earthquake Archaeology and Palaeoseismology held at the ancient Roman City of Baelo Claudia (South Spain) in September 2009. There in Southern Spain, the first joint meeting of the INQUA Focus Area on Palaeoseismology and Active tectonics and the UNESCO-IUGS programme IGCP567 on Earthquake Archaeology took place. This volume is one of the first accounts of an integrated approach in the study of past earthquakes combining recent advances in palaeoseismology and earthquake archaeology.
There’s a lot of great reading stuff or the summer holidays or on the plane to Corinth… more
Our new paper on lake Ohrid was published in the ZDGG: Reicherter, K., Hoffmann, N., Lindhorst, K., Krastel, S., Fernandez-Steeger, T.M., Grützner, C., Wiatr, T. 2011. Active basins and neotectonics: morphotectonics of the Lake Ohrid Basin (FYROM and Albania). Z. dt. Ges. Geowiss 162 (2), 217 -234. more
After we dealt with some faults in Greece, let’s move to Spain. The Ventas de Zafarraya Fault (VZF) west of the Granada basin (36.96° N, 4.14°W) has a beautiful morphologic expression and an exciting history. The fault bounds the Zafarraya polje to the south, with Quaternary sediments to the north (hanging wall) and limestones of the Internal Subbetics in the footwall. more
Some days ago a new paper on the paleoseismicity of the Dead Sea area during the late Holocene has been published in JGR. Kagan et al, 2011 investigated two new study sites in the northern and southern parts of the Dead Sea Basin and compared the seismites found there with the information of the Ein Gedi core presented by Migowski et al., 2004.
Pa·le·o·seis·mic·i·ty [ pālē·ə·sīz·mĭs′ĭ·tē ] noun, plural -ties. Ancient earthquake activity.
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