Results 101 to 110 of about 58,838 (264)

Earthquake Early Warning and Beyond: Systems Challenges in Smartphone-based Seismic Network

open access: yes, 2019
Earthquake Early Warning (EEW) systems can effectively reduce fatalities, injuries, and damages caused by earthquakes. Current EEW systems are mostly based on traditional seismic and geodetic networks, and exist only in a few countries due to the high ...
Allen R. M.   +3 more
core   +1 more source

Temporal Change in Resistivity Structure Before and After the 2018 Small Phreatic Eruption Iwo‐Yama Volcano, Kirishima Volcanic Complex, Japan

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A small phreatic eruption occurred on April 2018 Iwo‐yama, Kirishima volcanic complex, Japan. We estimated the change in the subsurface resistivity structure before and after the phreatic eruption by repeated magnetotelluric (MT) measurements. A substantial decrease in resistivity was determined in the zone from the surface down to a depth of ...
K. Aizawa, N. Matsushima, Y. Matsunaga
wiley   +1 more source

Ionospheric disturbances around the time of the Ms7.0 Lushan earthquake

open access: yesGeodesy and Geodynamics, 2013
Variations of Vertical Total Electron Content (VTEC) in the ionosphere are investigated around the time of the Ms7. 0 Lushan earthquake. A time-series analysis shows an anomalous VTEC increase 15 days before as well as some anomalous VTEC decreases 5 ...
Zhou Yiyan   +4 more
doaj   +1 more source

A modulated RRd star observed by K2

open access: yes, 2017
We report the analysis of the double-mode RR Lyrae star EPIC 205209951, the first modulated RRd star observed from space. The amplitude and phase modulation are present in both modes.Comment: 2 pages, 3 figures, proceedings of the Joint TASC2-KASC9 ...
Klagyivik, P.   +3 more
core   +2 more sources

Multi‐Stage Shallow Rupture and Pre‐Event Shallow Deformation During the 2025 Mw 5.9 Asadabad Earthquake (Afghanistan)

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The 31 August 2025 Mw 5.9 Asadabad earthquake in eastern Afghanistan caused severe damage despite its moderate magnitude, raising questions about rupture processes and seismic hazard in the southern Hindu Kush. Using Sentinel‐1 InSAR and teleseismic waveform modeling, we reveal a complex, multi‐stage shallow (4–5 km) rupture involving the ...
Ping He   +5 more
wiley   +1 more source

State-of-the-art of the historical seismology in Colombia

open access: yesAnnals of Geophysics, 2004
In Colombia are available a discreet number of historical seismology investigations, dating back 50 years. This paper reviews basic information about earthquakes studies in Colombia, such as primary sources, compilation of descriptive catalogues and ...
E. J. Salcedo Hurtado   +2 more
doaj   +1 more source

EU-NICE, Eurasian University Network for International Cooperation in Earthquakes [PDF]

open access: yes, 2012
Despite the remarkable scientific advancements of earthquake engineering and seismology in many countries, seismic risk is still growing at a high rate in the world’s most vulnerable communities.
Braga, F.   +20 more
core   +1 more source

Stress Field and Megathrust Strength in the Western Hellenic Subduction System: Insights From the 2024 Mw 5.9 Strofades Earthquake Sequence, Greece

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A M5.9 earthquake occurred on 29 March 2024, offshore near the Strofades Islands, in the western Hellenic Subduction System. Here we present high‐precision earthquake locations and focal mechanisms that suggest the rupture of a NNE‐SSW striking, left‐lateral strike‐slip fault.
G. M. Bocchini   +8 more
wiley   +1 more source

Dynamic inverse problem in a weakly laterally inhomogeneous medium [PDF]

open access: yes, 2005
An inverse problem of wave propagation into a weakly laterally inhomogeneous medium occupying a half-space is considered in the acoustic approximation. The half-space consists of an upper layer and a semi-infinite bottom separated with an interface.
Blagovestchenskii, A. S.   +2 more
core   +2 more sources

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