Today on Friday, 11 February, a magnitude 7.0 earthquake occurred offshore in Chile near Concepcion at 36.5° S and 73° W in a depth of 28km. The MMI at the nearby large cities was reported by the USGS with V.
Update: The magnitude was corrected to 6.8. The earthquake was followed one hour later by a further event with a magnitude of 5.3 and 4 hours later again by a more shallow 6.3.
Right to this topic a small discussion on seismic building codes and the need of reviewing them under the light of the Chile earthquake 2010 can be found on Ontario-Geofish.
Geology.com reports about again about the mystery of sliding rocks at Racetrack Playa in Death Valley National Park. These blocks slide over the flat playa plane leaving sometimes tens of meter long trails behind them. The NASA team was investigating 2010 Racetrack Playa to find out how they move. Their findings and photos can be found here.
We are now also on Twitter, so you can follow us to receive update information in an even more convenient way. Thanks to Martin for integrating this feature.
Finally we want to remember you about the Corinth Meeting in September 2011. As you can see on the right, registration will be open beginning on Monday. We are curious about your respond and would be happy to meet you in Greece.
Have a nice weekend!
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