Results 141 to 150 of about 66,350 (296)
, 2018 Most convergent plate boundaries create great earthquakes. The Cascadia subduction zone is unusual for that no plate boundary earthquakes occured within the last 200 years. As supported by a variety of innovative research, regional seismic hazard assessments recently consider the possibility that large earthquakes exist but the frequency of their ...
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Profound Impact of Premelting in the HCP‐Structured Earth's Inner Core
Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract The Earth's inner core shows distinct features, including low shear velocities and a high Poisson's ratio, often linked to hexagonal close‐packed iron (HCP‐Fe) through high‐pressure experiments and calculations. Premelting is proposed as a key mechanism behind the observed shear softening in HCP‐Fe. This study uses magnesium, an HCP‐structured
Chao Liu +3 more
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract The Ramapo Seismic Zone (RSZ) in the Northeastern United States hosts frequent but poorly understood intraplate earthquakes, potentially posing a significant hazard to the nearby New York metropolitan area. The 5 April 2024, Mw ${M}_{w}$4.8, Tewksbury, New Jersey earthquake, provides a rare opportunity to study the RSZ seismicity.
Eric Beaucé +4 more
wiley +1 more source
Annual Review of Earth and Planetary Sciences, 2005 ▪ Abstract Contrary to Earth, the interior of terrestrial planets is poorly known. This is mainly related to the lack of seismic data and of planetary seismic networks on these planets. So far, despite several attempts, only the Apollo Seismic Network has returned seismic information from the Moon.
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Large Size of Two 19th‐Century Chile‐Peru Earthquakes Inferred From Trans‐Pacific Tsunami Records
Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract We use tsunami records from five early Pacific tide gauges in the United States and Australia to estimate the size of the 1868 and 1877 Chile‐Peru earthquakes—two of the largest documented in South America since colonial times. To interpret these records, we derive empirical relationships between moment magnitude (Mw) and maximum tsunami ...
M. Carvajal +5 more
wiley +1 more source
Some Seismological Evidence That Is Not Evident [PDF]
, 1922 James B. Macelwane
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Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract Postseismic displacements associated with the 2001 Mw 8.4 Arequipa earthquake have been observed on a continuous GNSS timeseries in Arequipa for over two decades (∼30 cm on horizontal components). Using Finite Element Method (FEM), we explore the rheological properties of the South Peru subduction zone to model this temporal evolution, and we ...
B. Lovery +9 more
wiley +1 more source
Remote SensingGeometric complexities of a fault system have a significant impact on the rupture behavior of the fault. The 2021 Mw7.4 Maduo earthquake occurred on a multi-segmented complex sinistral fault in the interior of the Bayan-Har block in the northern Tibetan ...
Xiaoli Liu +7 more
doaj +1 more source
Trans‐Oceanic Distributed Sensing of Tides Over Telecommunication Cable Between Portugal and Brazil
Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract Geophysical sensing in the open ocean is both costly and technically challenging. Here we developed a novel distributed fiber optic sensing technique that employs microwave modulation for phase measurement in signals returned from submarine repeaters.
Meichen Liu +6 more
wiley +1 more source