seismology

Nature Communications, Published online: 25 May 2026; doi:10.1038/s41467-026-73717-6 This study shows that garnet affects the 660-km seismic discontinuity. High-pressure experiments reveal that the post-garnet transition induces the post-spinel transition, explaining observed structural variations and supporting a pyrolitic mantle.

Scientific Reports, Published online: 23 May 2026; doi:10.1038/s41598-026-54204-w Impacts of structural and soil parameters on the seismic response of neighbouring buildings: a numerical investigation

Abstract In the Middle East, because of existence of fault lines, arid landscapes, and seismic activity, the geopathic stress (GS) could theoretically be amplified by natural formations. So, the architecture, environmental health, and bioelectromagnetics are most considered the challenges in geopathic stress in the mentioned countries. The main goal of this research is to build a framework that i…

Abstract Chlorine is a key volatile in magmatic and volcanic systems, being a major consumer of atmospheric ozone and an important ligand for metal transport. Despite chlorine’s importance however, the combined effects of melt composition and H₂O on Cl solubility and HCl degassing remain poorly constrained, particularly at magmatic pressures. We present high-pressure (0.5–1.63 GPa), 1200 °C exper…

Scientists have unlocked one of ancient Egypt's most enduring mysteries, revealing how the Great Pyramid has remained standing through nearly five millennia of seismic activity. Researchers from the National Research Institute of Astronomy and Geophysics have determined that sophisticated construction methods employed by ancient builders are able to explain why Pharaoh Khufu's tomb shows no signi…

Scientists discovered hidden underwater “brakes” that may keep some earthquakes from becoming catastrophic. For more than 30 years, a fault line deep beneath the eastern Pacific Ocean has been producing remarkably consistent earthquakes. Located about 1,000 miles off Ecuador’s coast, the underwater fault generates magnitude 6 quakes every five to six years, striking in nearly [...]

Abstract The ~ 115 km long Sultandağı Fault forms the southern boundary of the Quaternary Afyon–Akşehir Graben in western Türkiye and represents a major active normal fault within the regional extensional regime. The Mw 6.5 Çay earthquake of 3 February 2002 produced surface rupture along its central segment, confirming its seismogenic capacity. This study presents the first detailed paleoseismolo…

Abstract The ratio of P-wave to S-wave velocity (Vp/Vs) is a key indicator of subsurface fluid pressure and rock properties. However, its spatial distribution in offshore regions has been poorly constrained because of difficulties in resolving shallow seismic velocity structures, particularly Vs structures. Recent advances in distributed acoustic sensing (DAS) enable dense seismic observations ev…

Computational mineralogy is fast becoming the most effective and quantitatively accurate method for successfully determining structures, properties and processes at the extreme pressure and temperature conditions that exist within the Earth's deep interior. It is now possible to simulate complex mineral phases using a variety of theoretical computational techniques that probe the microscopic natu…

A new study suggests northern Oregon could experience stronger shaking during a major Cascadia earthquake than earlier models predicted. A new analysis of the Juan de Fuca tectonic plate beneath northern Oregon suggests the slab lies closer to the surface than scientists previously believed. The finding could affect estimates of how strongly the region may [...]

New research investigates seismicity in South Africa’s Karoo Basin, seen here. Credit: Inka Stinka/Flickr , CC BY-NC-ND 2.0

Scientific Reports, Published online: 20 May 2026; doi:10.1038/s41598-026-51916-x Spatiotemporal variations in b-value suggest an evolving mechanical state of the crust in the southeastern Alps

A hidden network of earthquake faults running beneath Seattle may be far more active than scientists realized. New research reveals that smaller “secondary” faults in the Seattle Fault Zone appear to rupture roughly every 350 years — much more often than the massive main fault that has long worried geologists.

Why we think quakes are becoming more frequent The post The Earthquake Illusion appeared first on Nautilus .

Abstract We develop a mathematical framework for analyzing inter-regional earthquake triggering using multi-lag transfer entropy. While transfer entropy itself is well-established in information theory, its systematic application to discriminate earthquake triggering mechanisms across tectonic regions has not been previously formalized. We introduce the Multi-Lag Significance Profile (MLSP) as a …