Results 1 to 10 of about 489,492 (349)

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

Is Earthquake Triggering Driven by Small Earthquakes? [PDF]

open access: yes, 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   +4 more sources

Palaeolimnology of Lake Sapanca and identification of historic earthquake signals, Northern Anatolian Fault Zone (Turkey) [PDF]

open access: yes, 2009
Lake Sapanca is located on a strand of the Northern Anatolian Fault Zone (NAFZ, Turkey), where a series of strong earthquakes (Ms >6.0) have occurred over the past hundred years. Identifying prehistoric earthquakes in and around Lake Sapanca is key to a
Bertrand, S   +6 more
core   +1 more source

The physics of earthquakes [PDF]

open access: yes, 2004
Earthquakes occur as a result of global plate motion. However, this simple picture is far from complete. Some plate boundaries glide past each other smoothly, while others are punctuated by catastrophic failures.
Brodsky, Emily E., Kanamori, Hiroo
core   +1 more source

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