Results 11 to 20 of about 314,541 (295)

Is Earthquake Triggering Driven by Small Earthquakes? [PDF]

open access: yesPhysical Review Letters, 2002
Using a catalog of seismicity for Southern California, we measure how the number of triggered earthquakes increases with the earthquake magnitude. The trade-off between this relation and the distribution of earthquake magnitudes controls the relative ...
Helmstetter, Agnes
core   +8 more sources

The Vanishing Volcanic Geoheritage of a Key Scoria Cone and its Significance in Volcanic Hazard Resilience of the Active Monogenetic Volcanic Field near Al Madinah, Kingdom of Saudi Arabia [PDF]

open access: yesGeoconservation Research, 2023
Four small scoria cones in the western outskirts of Al Madinah City, the Kingdom of Saudi Arabia, form a distinct young volcanic landmark. These volcanoes, despite their very small size, provide one of the most fundamental sources of information about ...
Karoly Nemeth   +6 more
doaj   +1 more source

Tsunami risk perception in central and southern Italy [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2022
The Tsunami Alert Centre of the National Institute of Geophysics and Volcanology (CAT-INGV) has been promoting, since 2018, the study of tsunami risk perception in Italy.
L. Cugliari   +6 more
doaj   +1 more source

Lithospheric Sill Intrusions and Present‐Day Ground Deformation at Rhenish Massif, Central Europe

open access: yesGeophysical Research Letters, 2023
The Rhenish Massif in Central Europe, which includes the Eifel Volcanic Fields, has shown ongoing ground deformation and signs of possible unrest. A buoyant plume exerting uplift forces at the bottom of the lithosphere was proposed to explain such ...
F. Silverii   +3 more
doaj   +1 more source

Magma reservoir beneath Azumayama Volcano, NE Japan, as inferred from a three-dimensional electrical resistivity model explored by means of magnetotelluric method

open access: yesEarth, Planets and Space, 2021
An electrical resistivity model beneath Azumayama Volcano, NE Japan, is explored using magnetotelluric method to probe the magma/hydrothermal fluid distribution.
Masahiro Ichiki   +6 more
doaj   +1 more source

Updip Fluid Flow in the Crust of the Northeastern Noto Peninsula, Japan, Triggered the 2023 Mw 6.2 Suzu Earthquake During Swarm Activity

open access: yesGeophysical Research Letters, 2023
An Mw 6.2 earthquake occurred in Suzu, northeastern Noto Peninsula, Japan, on 5 May 2023, followed by many aftershocks. Before this mainshock‐aftershock sequence, an intense earthquake swarm lasted in the vicinity for 2.5 years.
Keisuke Yoshida   +7 more
doaj   +1 more source

Critical Fluid Injection Volumes for Uncontrolled Fracture Ascent

open access: yesGeophysical Research Letters, 2020
Hydrofracturing is a routine industrial technique whose safety depends on fractures remaining confined within the target rock volume. Both observations and theoretical models show that, if the fluid volume is larger than a critical value, pockets of ...
Timothy Davis   +2 more
doaj   +1 more source

Contrasting Volcanic Deformation in Arc and Ocean Island Settings Due To Exsolution of Magmatic Water

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Two of the most widely observed co‐eruptive volcanic phenomena—Ground deformation and volcanic outgassing—Are fundamentally linked via the mechanism of magma degassing and the development of compressibility, which controls how the volume of magma changes
Stanley Tze Hou Yip   +4 more
doaj   +1 more source

Mode of Strain Release Associated with Major Earthquakes in Japan [PDF]

open access: yes, 1973
It is now widely accepted that most shallow earthquakes are caused by a sudden release of tectonic stress, and therefore strain, in the form of faulting (56, Chap. 14).
Kanamori, Hiroo
core   +1 more source

Mechanics of earthquakes [PDF]

open access: yes, 1994
An earthquake is a sudden rupture process in the Earth’s crust or mantle caused by tectonic stress. To understand the physics of earthquakes it is important to determine the state of stress before, during, and after an earthquake.
Kanamori, Hiroo
core   +1 more source

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