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A particularly dangerous form of slow earthquake is the tsunami earthquake, observed where the relatively low felt intensities, caused by the slow propagation speed of some great earthquakes, fail to alert the population of the neighboring coast, as in the 1896 Sanriku earthquake.
A tectonic earthquake begins by an initial rupture at a point on the fault surface, a process known as nucleation. The scale of the nucleation zone is uncertain, with some evidence, such as the rupture dimensions of the smallest earthquakes, suggesting that it is smaller than 100 m while other evidence, such as a slow component revealed by low-frequency spectra of some earthquakes, suggest ...
A 2008 paper, studying past earthquakes along the Pacific coastal zone, found a correlation in time between seismic events on the northern San Andreas Fault and the southern part of the Cascadia subduction zone (which stretches from Vancouver Island to Northern California). Scientists believe quakes on the Cascadia subduction zone may have ...
Detailed satellite images give a bird’s-eye view Turkish towns before and after the earthquakes hit, and of relief efforts. Satellite images show shocking destruction caused by Turkey ...
US Geological Survey releases map revealing location of 7.2-magnitude earthquake. In photos: Earthquake in Morocco that killed 296 led people to rush out of their homes and turned buildings to rubble.
San Francisco Mission District burning in the aftermath of the San Francisco Earthquake of 1906. Reason A dramatic photograph taken at some personal risk: a major fire rages quite close to the rooftop where this was shot 102 years ago when camera equipment was heavy and required a tripod.
Their work will give modelers a sharper view of the possible impacts of a megathrust earthquake there — the term for a quake that occurs in a subduction zone, where one tectonic plate is thrust ...
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