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Eastern Alps Rockslides Triggered by Past Earthquakes

Eastern Alps Rockslides Triggered by Past Earthquakes
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Christa Hammerl , Michael Strasser , Patrick Oswald , Jasper Moernaut , Department Of Geology , Tyrolean Science Fund , Austrian Central Institute For Meteorology , Journal Nature Communications , Austrian Academy Of Sciences , European Regional Development Fund Interreg , Austrian Science Fund , University Of Innsbruck , Journal Nature , European Alps , Sedimentary Geology , Austrian Core Facility , Austrian Central Institute , Eastern Alps , Austrian Academy ,

Past earthquakes triggered large rockslides in the Eastern Alps

Past earthquakes triggered large rockslides in the Eastern Alps
16.02.2021
Geologists from the University of Innsbruck shed new light on a long-lasting debate about the trigger mechanism of large rockslides. Lake mud in two Alpine lakes in Tyrol reveal that rare strong earthquakes are the final cause of multiple, prehistoric rockslides in the Eastern Alps. The study has now been published in the Journal Nature Communications.
Image: In the 8 m long sediment cores the geologists found different types of earthquake traces. The picture shows the Plansee in Reutte, Tyrol.
(Credit: Jasper Moernaut)
Many steep valleys in the European Alps show the relicts of large rockslides, during which several hundreds of million cubic metres of rocks get instable, collapse and impact everything on their path. “For most of these, we still do not know how they are caused, because these rockslides occurred long before the start of written history in the region about 1000 y ....

Patrick Oswald , Jasper Moernaut , Christa Hammerl , Michael Strasser , Tyrolean Science Fund , Austrian Science Fund , Austrian Academy Of Sciences , Department Of Geology , European Regional Development Fund Interreg , University Of Innsbruck , Austrian Central Institute For Meteorology , European Alps , Sedimentary Geology , Austrian Core Facility , Austrian Central Institute , Eastern Alps , Austrian Academy , பேட்ரிக் ஆஸ்வால்ட் , மைக்கேல் ஸ்ட்ராஸர் , ஆஸ்திரேலிய அறிவியல் நிதி , ஆஸ்திரேலிய கலைக்கழகம் ஆஃப் அறிவியல் , துறை ஆஃப் புவியியல் , பல்கலைக்கழகம் ஆஃப் இந்ந்‌ஸ்ப்ரக் , ஆஸ்திரேலிய மைய நிறுவனம் க்கு வானிலை ஆய்வு , ஐரோப்பிய ஆல்ப்ஸ் , ஆஸ்திரேலிய கோர் வசதி ,

Unique record: 220,000 years of earthquake history

Date Time
Unique record: 220,000 years of earthquake history
A 457-metre long “data treasure” in the shape of a drilling core from the Dead Sea provides a unique insight into past earthquake history. These findings are essential for improving seismic hazard assessment. Yin Lu is an expert in the field of paleoseismology and has recently joined the Sedimentary Geology research group at the Department of Geology.
Earthquakes are among the most devastating natural disasters on our planet. Especially large earthquakes with a magnitude above 7 are very dangerous. In order to understand the dynamics behind earthquakes, a look into the past is essential. However, this look does not go very far, as reliable seismological recordings only reach back about 100 years, and historical data are not sufficient in this respect. Researchers therefore rely on drilling cores from sediment deposits from the deep sea or even lakes to obtain precise data from prehistoric times. “The di ....

Jasper Moernaut , Michael Strasser , Lise Meitner , University Of Innsbruck , Department Of Geophysics At Tel Aviv University , Austrian Science Fund , Department Of Geology , Dead Sea , Sedimentary Geology , Austrian Core Facility , Dead Sea Fault , Professor Jasper , Tel Aviv , மைக்கேல் ஸ்ட்ராஸர் , லைஸ் மெய்ட்னெர் , பல்கலைக்கழகம் ஆஃப் இந்ந்‌ஸ்ப்ரக் , துறை ஆஃப் புவி இயற்பியல் இல் தொலைபேசி அவிவ் பல்கலைக்கழகம் , ஆஸ்திரேலிய அறிவியல் நிதி , துறை ஆஃப் புவியியல் , இறந்தவர் கடல் , ஆஸ்திரேலிய கோர் வசதி , இறந்தவர் கடல் தவறு , ப்ரொஃபெஸர் ஜாஸ்பர் , தொலைபேசி அவிவ் ,