Sentences with phrase «subduction zones such»

At subduction zones such as these, an oceanic tectonic plate sinks (subducts) into the Earth's interior, the mantle.

Not exact matches

To get such a high mountain chain in a subduction zone setting is unusual which adds to the importance of trying to figure out when and how it happened.

Combining the 19th - century records of such effects with modern earthquake models helped Beauducel and Feuillet pin down both the quake's magnitude and the location of the fault rupture, the spot where the subduction zone tore apart.

A magnitude - 9.0 earthquake would likely give way along the whole north - south extent of the subduction zone, but it's not well known how far east the shake - producing area would extend, approaching the area beneath major cities such as Seattle and Portland.

In fact, lava emerging from hotspot volcanoes is known to differ chemically and isotopically from lava from other volcanoes, such as those erupting at subduction zones where Earth's crust dives into the upper mantle.

The findings could apply to other faults with similarly thick sediment, such as the Cascadia Subduction Zone in the Pacific Northwest, suggests study coauthor Andre Hüpers, a geophysicist at the University of Bremen in Germany.

Many people understand the damage that can be caused to structures, roads, bridges and utilities by ground shaking in these long - lasting types of earthquakes, such as the one that's anticipated on the Cascadia Subduction Zone between northern California and British Columbia.

At certain subduction zones, such as those in Cascadia, Sumatra and eastern Alaska, a thick sediment layer overlies the subducting oceanic plate.

The most hazardous swath of the northeastern Pacific lies along the Cascadia subduction zone (CSZ), a tectonic interface that parallels the coast and poses a seismic threat to cities such as Victoria, British Columbia; Portland, Ore.; and Eureka, Calif..

It used measurements from 195 core samples containing submarine landslide deposits caused by subduction zone earthquakes, instead of only about a dozen such samples in past research.

Such a fracture, says Duarte, is evidence of an «embryonic subduction zone,» where a new edge is formed, then forced under the remainder of the plate, into the Earth's molten mantle.

For example, waves move slower when passing through hot magma, such as mantle plumes and hotspots, than they do when passing through colder subduction zones, locations where one tectonic plate slides beneath another.

Researchers hope to use similar imaging techniques on other subduction zones, such as the Cascadia margin along the northern U.S. west coast, where there is a long history of large megathrust earthquakes and related tsunamis.

For mid-latitude coasts that border subduction zones, sequences of buried soils may provide a long - duration, subsidence stratigraphic paleoseismic record that spans to the present, but in other settings such as the Aceh coastal plain, joint research approaches, for example targeted foraminiferal analyses and palynology, are required to both exploit the changing form of the relative sea - level curve and characterize coastal evolution in the context of the diminishing importance of accommodation space.

Sumatra's 2004 earthquake should have been a wake - up call; giant earthquakes can occur on any subduction zone, and such events will likely be accompanied by very large tsunamis.

To improve seismic hazard assessment along subduction zones as well as other dangerous faults such as continental transforms, we need a set of open software tools to explore alternatives, we need a trans - national dialogue to discuss and vet our different ideas and approaches, and we need to conduct prospective tests of global models that are based on these various national strategies.