Results 181 to 190 of about 69,642 (315)

Seismoacoustic Analysis of Possible Vent‐Drying Sequence During Phreatomagmatic Activity on 13 July 2021 at Semisopochnoi Island, Alaska

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Pulse‐like infrasound accompanying volcanic phenomena sometimes suggests interaction with water at the crater. We focus on pulse‐like infrasound observed at Semisopochnoi Island in the Aleutian Arc, Alaska, during the phreatomagmatic activity on 13 July 2021.
Dan Muramatsu   +4 more
wiley   +1 more source

Thick Crust at Earth's Slowest Spreading Ridge: 3D Gravity Insights From Eurasian Basin, Arctic Ocean

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract The Eurasian Basin of the Arctic Ocean opened by ultraslow spreading along the Gakkel Ridge, yet crustal thickness has remained poorly constrained due to sparse seismic data. We present a new basin‐wide 3‐D gravity model, updated by the most comprehensive sediment thickness and seismic observations, offering the first systematic view of ...
Yan Li, Pingchuan Tan, Shaowen Liu
wiley   +1 more source

New Insights Into the Cooling of the Oceanic Lithosphere From Surface‐Wave Tomographic Inferences

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract How oceanic plates cool and thicken with age remains a subject to debate, with several thermal models supported by apparently contradictory data. Combining a novel imaging technique that balances resolution and uncertainty with finite‐frequency surface‐wave measurements, we build tomographic model SS3DPacific to revisit the cooling style of ...
Franck Latallerie   +5 more
wiley   +1 more source

Deep Earthquakes Can Generate Larger Co‐Seismic Displacements Than Shallow Events

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract We report the counter‐intuitive observation that a deep earthquake can generate larger co‐seismic displacements than a shallow event across a broad region (e.g., >4° from epicenter). This finding is based on a detailed comparative GNSS analysis of the co‐seismic displacement observations from two MW 8.3 events—the 2013 598.1 km‐deep Okhotsk ...
Sifang Chen, Sunyoung Park
wiley   +1 more source

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