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REPORT ABUSIVE REPLY
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Message Subject
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The monsters wakes up ! Katla Hekla Iceland Dead Zone and rift as uniform system ! A lot of others worldwide !
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Poster Handle
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Anonymous Coward |
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Post Content
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[ link to www.wired.com] ... Costa RicaThe RSN in Costa Rica released a report about changes at some of the most active volcanoes in the country after the M7.6 earthquake that struck the country last month. Although the direct connection between large earthquakes and eruptions is not settled, the RSN has noted that some Costa Rican volcanoes have experience heightened activity after large earthquakes (> M6.5), so they felt it was important to check to see what changes the active volcanoes of Costa Rica may have experienced since the earthquake. Overall, it looks like Turrialba, Poas and Rincon de la Vieja saw an increase in fumarolic activity (degassing) and Poas may have even had a small phreatic eruption in the days after the earthquake. Arenal and Irazu seem to not had any changes since the earthquake – however, one should take this cautiously as only a month has passed since the earthquake occurred... [ link to www.emsc-csem.org] Magnitude Mw 5.8 Region COSTA RICA Date time 2012-10-10 12:19:50.0 UTC Location 10.53 N ; 85.15 W Depth 60 km map [ link to www.emsc-csem.org] Hooooo... Isn't this where they just had the 6.6 today?? That would be an impressive aftershock to a 7.6M quake.  New release about Iceland eq swarm by Icelandic Met Office [ link to en.vedur.is] Earthquake activity offshore North Iceland continues Update 23.10.2012 ... The analysis of the M5.6 main shock revealed a normal-faulting source mechanism (downwards movement), which indicates it to be linked to the extension of the Eyjafjaroarall graben system and not directly to the Husavik Flatey Fault, which shows horizontal strike-slip movements. It is neither possible to estimate how long this activity will be ongoing, nor can further earthquakes of M>4 be excluded. This seismic sequence is located close to the western end of the Husavik Flatey Fault and it can not be ruled out that it will effect the stress field of this fault. A rifting episode during the Krafla fires 1975-1984 caused a stress decrease on the Husavik Flatey Fault and stress is accumulating on the fault system again since then. Deformation measurements (GPS) reveal that the Husavik Flatey Fault has accumulated enough stress for an earthquake around M6.8 (Metzger o.fl., 2011)The strongest earthquakes known on the fault were around M7, e.g. 1755 and 1872 in the Skjalfandi bay. The general trend is that we can expect further promotion activity to the east up to the east fjords zone
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