Unusual ground motion associated with the deepest major earthquake in the seismological record is due to both its great depth and its origin away from the subducting slab.
seismology
Posted inAGU News
Brian Kennett Receives 2017 Inge Lehmann Medal
Brian Kennett was awarded the 2017 Inge Lehmann Medal at the American Geophysical Union Fall Meeting Honors Ceremony, held on 13 December 2017 in New Orleans, La. The medal is for “outstanding contributions to the understanding of the structure, composition, and dynamics of the Earth’s mantle and core.”
Posted inResearch Spotlights
Mapping a Valparaíso Earthquake from Foreshock to Aftershock
Using seismic data recorded along the Chilean coast, scientists retrace the development of a recent earthquake.
Posted inAGU News
Gualtieri Receives 2017 Keiiti Aki Young Scientist Award
Lucia Gualtieri will receive the 2017 Keiiti Aki Young Scientist Award at the 2017 American Geophysical Union Fall Meeting, to be held 11–15 December in New Orleans, La. The award recognizes “scientific accomplishments of young scientists in the field of seismology.”
Posted inOpinions
Keeping Our Focus on the Subseafloor
Hard-pressed funding agencies wonder whether marine seismic facilities are worth the investment. A recent survey gives a resounding yes.
Posted inResearch Spotlights
Quiet Volcanic Activity Changes Speed of Ambient Seismic Waves
Seismic data collected continuously for 4 years could improve understanding of geological structures that underlie Japan’s Izu Oshima volcanic island.
Posted inEditors' Vox
The Earth’s Elastic Crust
A recent paper in Reviews of Geophysics discussed how the mineral composition and microfabric of the continental crust influences its seismic properties.
Posted inEditors' Vox
The Challenges Posed by Induced Seismicity
A recent paper in Reviews of Geophysics examined the increasing incidence of seismic events caused by industrial activities.
Posted inNews
“Fingerprinting” Volcanic Tremors May Help Forecast Eruptions
Volcano seismic waves produce distinct tremor patterns, or "fingerprints," shared by different kinds of volcanoes.
Posted inResearch Spotlights
Alteration Along the Alpine Fault Helps Build Seismic Strain
Detailed analysis of cores drilled through New Zealand's most dangerous on-land fault indicates that its permeability and strength are altered by mineral precipitation between seismic events.