This morning at 03:00 UTC an earthquake with magnitude MW7.7 occurred in the Sea of Okhotsk. Due to its great depth of more than 600 km no tsunami was triggered and surface shaking was pretty low, however, the event was felt in a wide area. Moment tensor solutions indicate a thrust event. Historical seismicity tells us that significant earthquakes are likely to happen in the region and mostly occur in great depths, but at this certain location only few events have been registered during the last decades. more
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A M7.7 earthquake in the Sea of Okhotsk and two M6.2 events in Iran
2012-08-14 | in Earthquake -
What’s up? The Friday links (41)
2012-08-03 | in The Friday LinksAlthough I already recommended some papers earlier this week, I have two more to mention: Supawit Yawsangratt and colleagues published new data on “Evidence of probable paleotsunami deposits on Kho Khao Island, Phang Nga Province, Thailand”. Nat Hazards, 63,151-163, DOI 10.1007/s11069-011-9729-4 in a special issue dedicated to tsunami research. Ran et al. presented work on the Wenchuan EQ epicentral area: “Paleoseismic events and recurrence interval along the Beichuan -Yingxiu fault of Longmenshan fault zone, Yingxiu, Sichuan, China.” Tectonophysics (2012), doi: 10.1016/j.tecto.2012.07.013. more
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New papers – Minoan earthquakes, catastrophism, archaeoseismology in Israel, Costa Concordia
2012-08-01 | in PaperCurrently I spend my time working on some papers that deal with tsunamis in the Eastern Mediterranean and earthquakes in Spain. Searching for literature and looking for data on the Minoan catastrophe I came across this new open access publication by Simon Jusseret and Manuel Sintubin:
- All That Rubble Leads to Trouble: Reassessing the Seismological Value of Archaeological Destruction Layers in Minoan Crete and Beyond. Seismological Research Letters, 83, 4, 736-742, doi:10.1785/0220120011.
Our colleagues from IGCP567 – Earthquake Archaeology put a lot of effort into getting rid of catastrophism and into making archeoseismology a more reliable, quantitative science. By the way, don’t miss the next workshop on archeoseismology and active tectonics in Mexico 2012! more
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What’s up? The Friday links (40)
2012-07-27 | in Earthquake, The Friday Links | 2 responsesOn 11 April 2012, a Mw8.6 strike-slip earthquake occurred off Sumatra in a kind of intra-plate setting and came as a surprise to the earthquake community. Such a strong strike-slip event was not expected, we always thought that the huge thrust quakes at subduction zones were the only ones to release that much energy. Now a press release by CalTech reports on the latest studies that came to the result that many previously unknown perpendicular faults ruptured at this event. Immediately some journalists suggested that this might also happen at the San Andreas Fault. I do not know of any paleoseismological evidence that this has happened there before. However, how likely is this scenario?
Link to the paper: An earthquake in a maze: compressional rupture branching during the April 11 2012 M8.6 Sumatra earthquake. more
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3rd INQUA-IGCP567 workshop in Mexico, Nov 2012 – deadline extended
2012-07-24 | in Meeting, Mexico 2012, PATA daysThe deadline for the 3rd INQUA-IGCP567 workshop on Active Tectonics, Paleoseismology and Archeoseismology has been extended to 15 August 2012. The meeting will be held from 19-24 November in Morelia, Mexico, in remembrance of the devastating Acambay earthquake form 1912. Registration is between $60 and $250, an additional fieldtrip can be booked for $60. more
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Special Issue: Active Faults in Iberia (Journal of Iberian Geology)
2012-07-02 | in PaperThe Journal of Iberian Geology has now published a Special Issue “Active Faults in Iberia“, with J.J. Martínez-Diaz, E. Masana, and M.A. Rodríguez-Pascua as guest editors: J Iber Geol, 38 (1), 201. This volume comprises a great collection of new data on active faults, paleoseismology, intraplate earthquakes, and seismic hazard. One article also introduces the Quaternary Active Faults Database of Iberia. And the best thing is – all articles are open access and available for download! more
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What’s up? The Friday links (36)
2012-06-22 | in The Friday LinksToday is GeoScience Day (Geotag) at RWTH Aachen University! Organized by the Chair of Engineering Geology and Hydrogeology, this event will start at 9:30 am in the Couvenhalle, Aachen. Geoscience-related talks and a poster exhibition will only be some parts of the very interesting program. The Geo summer party will be started after the “Geotag” at 6:00 pm at the parking lot of the Geoscience Institute at Wüllnerstraße. Come and see! Follow the Geotag on Twitter (hashtag #GEOTAG) and Facebook, and visit the official website! more
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New EQ-GEO-NET mailing list
2012-06-20 | in paleoseismicity.orgMost of us who are interested in tectonics and paleoseismology subscribed to the EQ-GEO-NET mailing list. The mailing list is a great tool to share info on our research and to discuss. Now the list has a new address: eq-geo-net-ml@aist.go.jp
If you don’t receive messages anymore or if you want to subscribe, please contact eq-geo-net-admin-ml@aist.go.jp more -
What’s up? The Friday links (35)
2012-06-15 | in The Friday Links | one responseThe Gulf Stream is ensuring the mild climate in Europe, everyone knows that. But does it really? Read Chris Rowan’s article on climate, Gulf Stream, heat capacity and atmospheric circulations.
Ritz et al. published a paper on the paleoseismicity of the North Tehran Fault, Iran. From trenching studies they claim at least 6 surface-rupturing events during the last 30 ka. Read the paper here at JGR-Solid Earth. Ritz, J.-F., H. Nazari, S. Balescu, M. Lamothe, R. Salamati, A. Ghassemi, A. Shafei, M. Ghorashi, and A. Saidi, 2012: Paleoearthquakes of the past 30,000 years along the North Tehran Fault (Iran), J. Geophys. Res., 117, B06305, doi:10.1029/2012JB009147. more
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What’s up? The Friday links (34)
2012-06-07 | in The Friday LinksOne of the best blog articles I recently read deals with the problems scientists face when they are interested in public outreach. Scicurious perfectly summarizes our situation.
The transit of Venus was a spectacular event, unfortunately not visible from Aachen. A really great photo collection is here at The Big Picture (Boston.com). A cold comfort for those who missed it (like me). They always have the best pictures there, by the way. more