Nuugaatsiaq Greenland landslide and tsunami: Seismograms suggest several stages of land failure

Seismograms around Nuugaatsiaq Greenland landslide image a complex source process lasting about 2 minutes. Continue reading Nuugaatsiaq Greenland landslide and tsunami: Seismograms suggest several stages of land failure

Advertisements

3D animation of the M7.8, Nov 2016 New Zealand earthquake and aftershocks

The following animation shows all earthquakes located by GeoNet between the time of the M7.8 mainshock (large red dot, November 13 2016, 11:02:56UTC) and November 18 2016: The majority of the aftershock zone is about 200km long, almost entirely to the northeast of the M7.8 mainshock.  Aftershocks extend down to 50km and more, with a dense … Continue reading 3D animation of the M7.8, Nov 2016 New Zealand earthquake and aftershocks

Timeline of early magnitude estimates for the complex, M7.8, Nov 2016 Kaikoura earthquake, New Zealand

The above timeline shows the evolution of publicly available magnitudes for the M7.8, 13 Nov 2016 Kaikoura earthquake in New Zealand.  The gray bar shows M7.8±0.1 magnitude units. The magnitude estimates before about 10min are mostly less than M7.6, with the exception of Early-est Mwpd, which is always high at M8.1-8.2.  These earliest estimates generally … Continue reading Timeline of early magnitude estimates for the complex, M7.8, Nov 2016 Kaikoura earthquake, New Zealand